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april 2007 rev 2 1/84 1 TDA7513T single chip fm/am tuner with stereo decoder and audio processor features am/fm tuner for car radio integrated tuning pll variable bandwith fm if filter (iss) fully integrated fm stereo decoder fully integrated fm noise blanker highly integrated audio processor description the TDA7513T is the first device for car-radio applications that combines full rf front end functions with audio-p rocessing capabilities. as far as fm and am functions are concerned , the TDA7513T features front end processing, including the digital tuning pll, if processing with demodulation and variable bandwidth if filtering (iss), stop station and quality detection functions, fm stereo decoding by means of a fully integrated, adjustment free, dedicated pll and, finally, fm noise blanking. the fm stereo decoder and noise blanker functions are realized entirely without external components. the audio processor section comprises input selectors for two quasi-differential external sources, volume control, tone control (bass, mid and treble), balance and fading control to drive four output channels. a soft mute function and an rds mute function are included to handle source change as well as rds af search without abrupt changes in the audio level. most of the parameters in the front-end section are i 2 c bus-driven and therefore under the control of the car radio maker. the i 2 c bus allows furthermore the user to realize the full electric alignment of all the external coils, therefore removing the need for hand-made or mechanical adjustments. lqfp80 table 1. device summary part number package packing TDA7513T lqfp80 tray e-TDA7513T lqfp80 tray www.st.com
contents TDA7513T 2/84 contents 1 block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.1 fm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2 am . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.3 oscillators (vcc = 8v; tamb =25c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.4 stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2.5 noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.6 multipath and quality detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1 fm section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1.1 mixer1, agc and 1st if . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1.2 mixer2, limiter and demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1.3 quality detection and iss field strength . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1.4 adjacent channel detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1.5 multipath detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3.1.6 450khz if narrow bandpass filter (iss filter) . . . . . . . . . . . . . . . . . . . . . 28 3.1.7 deviation detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.1.8 iss switch logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.1.9 soft mute control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.1.10 station detector and seek stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.2 am section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.3 pll and if counter section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.3.1 pll frequency synthesizer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.3.2 frequency generation for phase comparison . . . . . . . . . . . . . . . . . . . . 30 3.3.3 three state phase comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.3.4 charge pump current generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.3.5 low noise cmos op-amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.3.6 if counter block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.3.7 the if counter mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.3.8 sampling timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3.3.9 intermediate frequency main counter . . . . . . . . . . . . . . . . . . . . . . . . . . 31
TDA7513T contents 3/84 3.3.10 adjustment of the measurement time and frequency window . . . . . . . . 32 3.4 audio processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.4.1 input multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.4.2 input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.4.3 autozero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.4 autozero remain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.5 softmute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.6 bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.7 attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.8 center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.9 quality factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.10 dc mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.11 mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.12 attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.13 center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.14 quality factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.15 treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.16 attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.17 center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.18 ac coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.4.19 speaker attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.5 stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.5.1 stereo decoder mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.5.2 stereo decoder input stage, ingain + infilter . . . . . . . . . . . . . . . . . . . . . 35 3.5.3 demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.5.4 de-emphasis and highcut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 3.5.5 pll and pilot tone detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.5.6 fieldstrength control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.5.7 level input and gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.5.8 stereoblend control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.5.9 highcut control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.5.10 noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.5.11 trigger path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.5.12 automatic noise controlled threshold adjustment (atc) . . . . . . . . . . . . 37 3.6 automatic threshold control mechanism . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.6.1 automatic threshold control by the stereoblend voltage . . . . . . . . . . . . 37 3.6.2 over deviation detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
contents TDA7513T 4/84 3.7 multipath detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.7.1 programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.8 quality detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.8.1 af search control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9 i2c bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9.1 data transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9.2 start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9.3 stop condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9.4 acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9.5 data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 3.9.6 device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.9.7 write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 3.9.8 read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4 software specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 4.1 tuner section address organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 4.2 tuner section subaddresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 4.3 stereodecoder and audioprocessor section . . . . . . . . . . . . . . . . . . . . . . . 69 4.4 subaddress organization (stereodecoder and audioprocessor section) . 70 5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 6 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
TDA7513T list of tables 5/84 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 3. general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 4. mixer1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 5. front end adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 6. agc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 7. if amplifier 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 8. if amplifier 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 9. field-strength meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 10. mpx output (output at tunerout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 11. field strength stop station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 12. soft mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 13. iss filter (fmif1amp1 gain must be set to 14db) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 14. general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 15. mixer1 (input at ammix1in+, no mod) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 16. agc1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 17. mixer2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 18. if2 amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 19. agc2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 20. audio output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 21. field strength meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 22. vco . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 23. xtal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 24. audio processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 25. stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 table 26. noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 table 27. multipath and quality detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 table 28. iss modes 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 table 29. iss modes 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 table 30. address organization (tuner section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 table 31. address organization addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 table 32. address organization subaddress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 table 33. address organization read mode: iss outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 table 34. subaddress organisation (tuner section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 table 35. subaddress 1: pll lock detector, fm mode and test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 table 36. subaddress 2: pll counter 1 (lsb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 0 table 37. subaddress 3: pll counter 2 (msb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 table 38. subaddress 4: reference counter 1 (lsb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 table 39. subaddress 5: reference counter 2 (msb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 table 40. subaddress 6: fm antenna adjustment and fm mute depth . . . . . . . . . . . . . . . . . . . . . . . 52 table 41. subaddress 7: fm rf adjustment am prescaler and seek . . . . . . . . . . . . . . . . . . . . . . . . 53 table 42. subaddress 8: if counter control 1 and am s.s. threshold . . . . . . . . . . . . . . . . . . . . . . . . 53 table 43. subaddress 9: if counter control 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 table 44. subaddress 10: if counter reference (lsb) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 table 45. subaddress 11: if counter reference (msb) and if counter mode select . . . . . . . . . . . . . 55 table 46. subaddress 12: am if amplifier gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 table 47. subaddress 13: demodulator fine adjust and noise blanker, mp qual test . . . . . . . . . . . . 57 table 48. subaddress 14: quality detection adjacent channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
list of tables TDA7513T 6/84 table 49. subaddress 15: quality detection multipath and smeter test . . . . . . . . . . . . . . . . . . . . . . . 58 table 50. subaddress 16: quality detection deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 table 51. subaddress 17: quality iss filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 table 52. subaddress 18: pll rest, 456khz vco adjust start, iss mp gain and sd out mode . . . 61 table 53. subaddress 19: 456khz vco adjustment (manual mode) . . . . . . . . . . . . . . . . . . . . . . . . 61 table 54. subaddress 20: fm stop station and soft mute threshold . . . . . . . . . . . . . . . . . . . . . . . . . 62 table 55. subaddress 21: adjacent channel mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 table 56. subaddress 22: fm smeter sider and am smeter time constant . . . . . . . . . . . . . . . . . . . 63 table 57. subaddress 23: ift adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 table 58. subaddress 24: xtal and fm if amp 2 gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 table 59. subaddress 25: fm nagc key and am wagc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 table 60. subaddress 26: am nagc key and fm demod ref frequency test . . . . . . . . . . . . . . . . . . 65 table 61. subaddress 27: iss tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 table 62. subaddress 28: iss tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 table 63. subaddress 29: tuner and smeter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 table 64. subaddress 30: adjacent channel mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 table 65. subaddress 31: adjacent channel and multipath gain, weak field iss threshold . . . . . . . . 68 table 66. address organisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 table 67. stereodecoder and audioprocessor section subaddress . . . . . . . . . . . . . . . . . . . . . . . 70 table 68. stereodecoder and audioprocessor section read mode. . . . . . . . . . . . . . . . . . . . . . . . . 70 table 69. stereodecoder and audioprocessor section address . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 table 70. subaddress 0: source selector, in-gain, sspeaker coupling . . . . . . . . . . . . . . . . . . . . . . . 70 table 71. subaddress 1,4,5,6,7: volume spkr atten. lf, rf, lr, rr . . . . . . . . . . . . . . . . . . . . . . . . 71 table 72. subaddress 2: treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 table 73. subaddress 3: bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 table 74. subaddress 4: speaker attenuator left front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 table 75. subaddress 8: soft mute, bass, noise blanker time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 table 76. subaddress 9: stereo decoder mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 table 77. subaddress 10: noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 table 78. subaddress 11: high cut, multipath influence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 table 79. subaddress 12: fieldstrength control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 table 80. subaddress 13: noise rectifier discharge resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 table 81. subaddress 14: roll-off compensation, level gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 table 82. subaddress 15: test byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 table 83. subaddress 16: multipath test, amhcc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 table 84. subaddress 17: mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 table 85. subaddress 18: stereo blend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 table 86. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
TDA7513T list of figures 7/84 list of figures figure 1. tuner section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 2. stereo decoder / audio processor section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 3. pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 4. softmute timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 5. bass control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 6. bass center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 7. bass quality factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 8. bass normal and dc mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 9. mid control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 10. mid center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 figure 11. mid q factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 figure 12. treble control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 figure 13. treble center frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 figure 14. block diagram of the stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 figure 15. signal during stereo decoder?s softmute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 figure 16. internal stereo blend characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 figure 17. relationship between unadjusted and adjusted filtered field strength signals . . . . . . . . . . 45 figure 18. highcut characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 figure 19. noise blanker block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 figure 20. multipath detector block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 figure 21. lqfp80 mechanical data & package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
block diagrams TDA7513T 8/84 1 block diagrams figure 1. tuner section figure 2. stereo decoder / audio processor section pllgnd pllvcc xtalg xtald ammix2out amif2ampref amagc2tc isstc devtc demgnd sd tunerout tunquality diggnd amif2ampref fm agc vco fmwagcin fmagcvout fmagciout fmmix1in+ rfgnd fm mix1 vcob vcoe oscvcc oscgnd div 4,6,8,10 am mix1 ift1adj am agc1 amagc1vout amagc1iout amag1ctc pll 10.25m 400k fm fe adj lfref lfin lfhc lfout fmantadj fmrfadj xtal osc amp1 fm amp2 fm am mix2 ift2adj amp2 am am/ fm fs meter 450k 10.7m fm mix2 am dem am agc2 smeter filter uffs iss adjchdet mpathdet overdevdet quality ffs uffs uffs ffs fm demod 450k 450k ffs ifc 10.25m sd ffs uffs amp audio softmute mute ffs i 2 c bus sdaint scli nt ackint fmnagcin mix1out+ fmifamp1in/ ammix2in amif2ref fmifamp1out fmifamp2in fmifamp2out smetertc fmmix2in+ vref5v tungnd tunvcc digvcc fmmutetc fmdemref smeter smeter slider if1gnd if1vcc + sffs 5v ref adjchdet fmmix1in- ammix1in+ ammix1in- mix1out- fmifampref/ fmmix2in- pilot canc high cut level det devdet noise det in gain roll-of comp demod st.blend pilot detector pll stereo sfsf level adjust tunerin rdsmute st. blend hi-cut control dischtime i const noise blanker mpath det uffs rdsmute rdsmute mpathtc quality det quality in gain auto zero soft mute vol spkr aclout aclin outrl outfl outfr outrr acrin acrout in gain in1l in1r in1com in2l in2r in2com audiomute am/fm r am/fm l mute treble mid bass i 2 c bus sdaint sclint ackint sda scl apvcc apgnd 3v ref vref3v auto zero am/fm r am/fm l spkr spkr spkr
TDA7513T block diagrams 9/84 figure 3. pin connections table 2. pin description pin pin name pin function 1 vref5v 5v reference 2 tungnd tuner general ground 3 ammix1in1 am mix1 input 4 ammix1in2 am mix1 input 5 amagc1tc am agc1 filter capacitor 6 amagc1iout am agc1 current output 7 amagc1vout am agc1 voltage output 8 fmmix1in1 fm mix1 input 9 rfgnd rf ground 10 fmmix1in2 fm mix1 input 11 fmagciout fm agc current output 12 fmwagcin fm agc rf input 13 fmagcvout fm agc voltage output 1 2 3 5 6 4 7 8 9 10 31 11 32 33 34 35 36 75 74 73 72 70 71 69 68 67 66 65 55 54 53 51 50 52 60 59 58 56 57 amagc1iout amagc1tc ammix1in2 tungnd vref5v ammix1in1 fmagciout fmmix1in2 rfgnd amagc1vout fmmix1in1 xtalg xtald digvcc diggnd isstc tunquality devtc vref3v apgnd apvcc outrr fmifamp1in fmifamp1out fmifampref tunvcc fmifamp2out fmifamp2in fmmix2in1 fmmix2in2 ammix2out amagc2tc amif2ampin sd scl sda tunerout tunerin fmmutetc multipathtc rdsmute audiomute smeter quality d03au1527 26 27 28 29 30 76 fmnagcin 77 ifgnd 78 mix1out2 79 mix1out1 80 ifvcc lfref lfin lfhc pllvcc pllgnd 21 22 23 24 25 49 48 46 45 47 in1l in1com in2r in2com in1r 12 13 14 15 16 oscgnd fmrfandj fmantadj fmwagcin fmagcvout 64 63 62 61 amif2ampref smetertc demgnd fmdemref 37 38 39 40 outrl outfr outfl acrin 44 42 41 43 in2l aclin acrout aclout 17 18 19 20 lfout oscvcc vcob vcoe
block diagrams TDA7513T 10/84 14 fmantadj fm antenna filter adjustment 15 fmrfandj fm rf filter adjustment 16 oscgnd vco ground 17 vcoe am/fm vco emitter 18 vcob am/fm vco base 19 oscvcc vco supply (8v) 20 lfout pll loop filter output 21 lfref pll loop filter reference 22 lfin pll loop filter input 23 lfhc pll loop filter high-current input 24 pllvcc pll back-end supply 25 pllgnd pll back-end ground 26 xtalg ref osc gate 27 xtald ref osc drain 28 digvcc digital dirty supply (8v) 29 diggnd digital ground 30 tunquality tuner combined output of mu ltipath and adjacent channel detectors 31 isstc iss time constant 32 devtc deviation det ector time constant 33 vref3v 3v reference 34 apgnd audio processor/stereo decoder ground 35 apvcc audio processor/stereo decoder supply (8v) 36 outrr audio out 37 outrl audio out 38 outfr audio out 39 outfl audio out 40 acrin ac coupling right input 41 acrout ac coupling right output 42 aclin ac coupling left input 43 aclout ac coupling left output 44 in2l audio in2 left 45 in2com audio in2 common 46 in2r audio in2 right 47 in1r audio in1 right table 2. pin description (continued) pin pin name pin function
TDA7513T block diagrams 11/84 48 in1com audio in1 common 49 in1l audio in1 left 50 tunerin am audio/fm mpx input 51 tunerout am audio/fm mpx output 52 fmmutetc fm muting time constant capacitor 53 sda i2c bus data 54 scl i2c bus clock 55 sd am/fm station detector output 56 smeter am/fm smeter output 57 quality quality output 58 audiomute audio mute control 59 rdsmute rds mute control 60 multipathtc multipath detector time constant 61 fmdemref fm demodulator reference capacitor 62 demgnd fm demodulator ground 63 smetertc am/fm smeter filtering capacitor 64 amif2ampref am if2 amp feedback capacitor 65 amif2ampin am if2 amp input 66 amagc2tc am agc2 filter capacitor 67 ammix2out am mix2 single-ended output 68 fmmix2in2 fm mix2 input 69 fmmix2in1 fm mix2 input 70 fmifamp2out fm if1 amp2 output 71 fmifamp2in fm if1 amp2 input 72 tunvcc tuner general supply (8v) 73 fmifampref fm if1 amps reference capacitor 74 fmifamp1out fm if1 amp1 output 75 fmifamp1in fm if1 amp1 input 76 fmnagcin fm agc if input 77 ifgnd if1 ground 78 mix1out2 am/fm mix1 output 79 mix1out1 am/fm mix1 output 80 ifvcc if1 supply (8v) table 2. pin description (continued) pin pin name pin function
electrical characteristcs TDA7513T 12/84 2 electrical characteristcs 2.1 fm (v cc = 8v; t amb = 25c; v sg = 60db v; fc = 98.1mhz; f dev = 40khz; f mod = 1khz unless otherwise specified) table 3. general (audioprocessor all flat and stereo decoder input gain = 4db ) symbol parameter test condition min typ max unit us useable sensitivity snr = 40db 0 db v snr signal to noise ratio 66 db ls limiting sensitivity soft mute off; @ vout = - 3db -4 dbmv thd total harmonic distortion fdev = 40khz 0.1 0.3 % fdev = 75khz 0.15 0.5 % vout audio output level rms 375 mv isn interstation noise vout @ rf off; soft mute off -13 db ifcs if counter sensitivity 2 10 db v icc dc current oscvcc 5.7 ma pllvcc 1.9 ma digvcc 9.8 ma tunvcc 50 ma if1vcc 13.4 ma apvcc 27.3 ma table 4. mixer1 symbol parameter test condition min typ max unit gv conversion gain from rft secondary to ift1 secondary loaded with 330 9db iip3 3 rd order intercept point refe rred to rft secondary db v cift1 ift1 adjustment capacitor min between mixout+ and mixout- 0pf max 8.25 pf step 0.55 pf rin input resistance (single ended) fmmix1in+ and fmmix1in- w.r.t. gnd 10 w
TDA7513T electrical characteristcs 13/84 table 5. front end adjustment (vrfadj and vantadj referred to vlfout) symbol parameter test condition min typ max unit vantadj min -40 % max 40 % step 1.29 % vrfadj min -40 % max 40 % step 1.29 % table 6. agc (wide agc input connected to rft primary through 10pf and 1k ) symbol parameter test co ndition min typ max unit wagcsp wide agc starting point vrftprimary @ i(fmagcout) = 5 a 84 db v wagcrin fmwagcin input resistance 125 w nagcsp narrow agc starting point (max sensitivity) vrftprimary @ i(fmagcout) = 5 a; keyed agc off 95 db v knagcsp keyed narrow agc starting point (min sensitivity) vrftprimary @ i(fmagcout) = 5 a; keyed agc on; v(smetertc)<0.9v 109 db v nagcrin fmnagcin input resistance 10 k kagcth high smeter for keyed narrow agc maximum sensitivity minimum programming v(smetertc) @ narrow agc starting point = nagcsp 0.9 v maximum programming 2.5 v kagcth low smeter for keyed narrow agc minimum sensitivity minimum programming v(smetertc) @ narrow agc starting point = knagcsp 1.6 v maximum programming 3.2 v iout min agc off 0.1 a max agc on 8 ma vout min agc on 0.1 0.5 v max agc off vcc- 0.5 v agcvrout fmagcvout output resistance 100 k
electrical characteristcs TDA7513T 14/84 table 7. if amplifier 1 (input at fmifamp1in, fc = 10.7mhz, no mod) (output at fmifamp1out loaded with 330 ) (antenna level = fmifamp1in ? 31db) symbol parameter test condition min typ max unit ggain 18db iip3 3 rd order intercept point referred to fmifamp1in 126 db v rin input resistance (single- ended) fmifamp1in w.r.t. gnd 330 w rout output resistance 330 w table 8. if amplifier 2 (input at fmifamp2in, fc = 10.7mhz, no mod) (output at fmifamp2out loaded with 330 ) (antenna level = fmifamp2in ? 45db) gain must be set to 14db for iss operation. symbol parameter test condition min typ max unit g minimum gain programmable gain 6db 8db 10 db maximum gain 14 db iip3 input 3 rd order intercept point referred to fmifamp2in, g = 8db 134 dbm v symbol parameter test condition min typ max unit rin input resistance (single- ended) fmifamp2in to gnd 330 w rout output resistance 330 w table 9. field-strength meter (input at fmmix2in; fc = 10.7mhz, no mod) (antenna level = v67 ? 49db) symbol parameter test condition min typ max unit fs1 fsmeter1 v(fmmix2in+) = 50 dbmv 1.4 dbmv fs2 fsmeter2 v(fmmix2in+) = 70 dbmv 2.7 dbmv fs3 fsmeter3 v(fmmix2in+) = 90 dbmv 4.4 dbmv fsr fsmeter filtering resistor smetertc pin 10.7 kw ffss filtered fsmeter slider min 0 v max 1.5 v step 50 mv
TDA7513T electrical characteristcs 15/84 * 2.2 am (v cc = 8v; t amb =25c; vsg = 74db v,emf; fc = 999khz; 30% modulation; fmod = 400hz unless otherwise specified). table 10. mpx output (output at tunerout) symbol parameter test condition min typ max unit gc conversion gain 5.42 mv/khz vaudio audio level peak, 40khz deviation 217 mvp table 11. field strength stop station ( input at fmmix2in ? fc = 10.7mhz, no mod) (antenna level = v69 ? 49db) symbol parameter test co ndition min typ max unit fsssmin minimum threshold vthr = 0.4v 50 db v fsssmax maximum threshold vthr = 3.4v 78 db v fsssstep threshold step vthr = 200mv 3 db table 12. soft mute symbol parameter test condition min typ max unit smd soft mute depth min 13.4 db 16 db 19.5 db max 24 db mcvlow mute control voltage low v(fmmutetc) @ no mute attenuation 0.2 v mcvhigh mute control voltage high v(fmmutetc) @ max mute attenuation 2v acmcl adjacent channel mute clamp voltage min max v(fmmutetc) in adjacent channel conditions 500 mv max 2000 mv step 100 mv table 13. iss filter (fmif1amp1 gain must be set to 14db) (1) 1. if iss function is not used, seek must be set to ?on? in fm symbol parameter test condition min typ max unit bw1 wide bandwidth full bandwidth @ -3db 120 khz bw2 narrow bandwidth 80 khz bwwb weather band bandwidth 30 khz
electrical characteristcs TDA7513T 16/84 table 14. general (with 20pf/65pf dummy antenna; input levels @ sg,emf; output @ audioprocessor output; audioprocessor all flat; stereo decoder input gain = 5.75db) symbol parameter test condition min typ max unit us useable sensitivity snr = 20db 26 db v snr signal to noise ratio 56 60 db ms maximum sensitivity @ vout = -10db 20 db v thd total harmonic distortion mod =30%, vsg = 74db v0.59 % mod =80%, vsg = 74db v1.48 % mod =30%, vsg = 120db v 1.88 % mod =80%, vsg = 120db v 3% thdlf thd @ low frequency mod =30%, vsg = 74db v, fmod=100hz 2% vout audio output level rms 266 mv isn interstation noise level vout @ rf off -35 -31 db ifcs if counter sensitivity 8 10 20 db v icc dc current oscvcc 5.6 ma pllvcc 1.9 ma digvcc 12.1 ma tunvcc 68 ma if1vcc 7.8 ma apvcc 27 ma table 15. mixer1 (input at ammix1in+, no mod) symbol parameter test condition min typ max unit gv conversion gain from ammix1in+to ift1 secondary loaded with 330 13 db iip3 input 3 rd order intercept point referred to ammix1in+ 130 db v rin input resistance (differential) ammix1in+ w.r.t. ammix1in- 1.2 k cift1 ift1 min between mixout+ and mixout- 0pf adjustment max 8.25 pf capacitor step 0.55 pf
TDA7513T electrical characteristcs 17/84 table 16. agc1 (wide agc input = am mixer1 input; narrow agc input = am mixer2 input; ultra narrow agc input = am if2 amp input; fwagcin = 999khz, fnagcin = 10.7mhz, funagcin = 450khz) symbol parameter test co ndition min typ max unit wagcsp wide agc min ammix1in+ @ i(amagc1vout) = 1 ua 85 db v starting point max 104 db v nagcsp narrowagc min ammix1in+ @ i(amagc1vout) = 1 ua 79 db v starting point max 97 db v unagcsp ultra narrow agc min ammix1in+ @ i(amagc1vout) = 1 ua 50 db v starting point max 97 db v agc1r agc1 filtering resistor amagc1tc pin 100 k iout min agc off 1 a max agc on 0.4 ma vout min agc on 0.5 v max agc off 3.38 v agc1vrout amagc1vout output resistance 23 k table 17. mixer2 (input at ammix2in, fc = 10.7mhz, no mod) symbol parameter test condition min typ max unit gv, max conversion gain, no agc from ammix2in to ift2 secondary loaded with 2k 15 db gv, min conversion gain, full agc from ammix2in to ift2 secondary loaded with 2k -7 db iip3 input 3 rd order intercept point referred to ammix2in, no agc 120 db v rin input resistance ammix2in w.r.t. ground 330 w cift2 ift2 min between ammix2out and gnd 0pf adjustment max 24 pf capacitor step 1.6 pf
electrical characteristcs TDA7513T 18/84 table 18. if2 amplifier (input at amif2ampin, fc = 450khz, no mod) symbol parameter test condition min typ max unit gv, max gain, no agc max prog 64.8 db 62.8 61.7 60.2 58.3 55.8 min prog 53.2 gv gain decrease in full agc w.r.t. gv, max -40 db rin input resistance ammix2in w.r.t. ground 2 k table 19. agc2 symbol parameter test condition min typ max unit agc2r agc2 filtering resistor reception 150 k seek 5 k table 20. audio output (output at tunerout, 2.7k load) symbol parameter test condition min typ max unit vaudio audio level rms, 30% modulation 305 mv table 21. field strength meter (input at amif2ampin; fc = 450 khz, no mod) (sg,emf level = v65 ? 29db) symbol parameter test condition min typ max unit fs1 fsmeter1 v(amif2ampin) = 50 db v 0.7 db v fs2 fsmeter2 v(amif2ampin) = 70 db v 2.1 db v fs3 fsmeter3 v(amif2ampin) = 90 db v 4.2 db v fsr fsmeter filter resistor min smetertc pin 16.5 k max 75 k ffss filtered fsmeter slider min 0 v max 1.5 v step 48.4 mv
TDA7513T electrical characteristcs 19/84 2.3 oscillators (v cc = 8v; t amb =25c) table 22. vco symbol parameter test condition min typ max unit vvco oscillation level tuning voltage = 4v 106 108 db v c/n carrier to noise ratio f = 1khz 85 dbc/h z table 23. xtal symbol parameter test condition min typ max unit vxtal oscillation level @ xtal gate 131 db v fxtal adjustment frequency range min referred to 10.25 mhz centered condition -4 khz max +4 khz step 238 hz table 24. audio processor (vs = 8v; tamb = 25c; rl = 10k ; all gains = 0db; f = 1khz; unless otherwise specified) symbol parameter test condition min. typ. max. unit input gain gin min min. input gain -1 0 1 db gin max max. input gain 13 15 17 db gstep step resolution 0.5 1 1.5 db quasi differential stereo input 1&2 rin input resistance any input pin to gnd 70 100 130 k cmrr common mode rejection ratio v cm = 1v rms @ 1khz 45 70 db v cm = 1v rms @ 10khz 45 60 db volume control gmax max gain 13 15 17 db astep step resolution 0.5 1 1.5 db ea attenuation set error g = -20 to 20db -1.25 0 1.25 db g = -60 to 20db -4 0 3 db et tracking error 2 db vdc dc steps adjacent attenuation steps mv from 0db to gmin mv soft mute/afs amute mute attenuation 80 100 db
electrical characteristcs TDA7513T 20/84 td delay time t1 0.48 ms t2 0.96 ms t3 20.2 ms t4 40.4 ms vth low low threshold for sm-/afs- pin 1 1v vth high high threshold for sm-/afs- pin 4v bass control crange control range 13 15 17 db astep step resolution 0.5 1 1.5 db fc center frequency fc1 54 60 66 hz fc2 63 70 77 hz fc3 72 80 88 hz fc4 90 100 (150) (1) 110 hz qbass quality factor q1 0.9 1 1.1 q2 1.1 1.25 1.4 q3 1.3 1.5 1.7 q4 1.8 2 2.2 dcgain bass-dc-gain dc = off -1 0 1 db dc = on 3.5 4.4 5.5 db mid control crange control range 13 15 17 db astep step resolution 0.5 1 1.5 db fc center frequency fc1 450 500 550 hz fc2 0.9 1 1.1 khz fc3 1.35 1.5 1.65 khz fc4 1.8 2 2.2 khz qbass quality factor q1 0.9 1 1.1 q2 1.8 2 2.2 treble control crange control range 13 15 17 db table 24. audio processor (continued) (vs = 8v; tamb = 25c; rl = 10k ; all gains = 0db; f = 1khz; unless otherwise specified) symbol parameter test condition min. typ. max. unit
TDA7513T electrical characteristcs 21/84 astep step resolution 0.5 1 1.5 db fc center frequency fc1 8 10 12 khz fc2 10 12.5 15 khz fc3 12 15 18 khz fc4 14 17.5 21 khz speaker attenuators rin input impedance 17.5 25 32.5 k gmax max gain 13 15 17 db amax max attenuation -70 -79 db astep step resolution 0.5 1 1.5 db amute output mute attenuation 80 90 db ee attenuation set error 2db vdc dc steps adjacent attenuation steps mv audio outputs vclip clipping level thd = 0.3% 2.2 2.6 vrm s rl output load resistance 2 k cl output load capacitance 10 nf rout output impedance 30 120 w vdc dc voltage level 3.9 v general gqd gain (qdin) quasi-differential input 0.5 db gstd gain (tuner) tuner input (std ingain=4db) 7.5 db eno output noise (qdin) bw = 20 hz to 20 khz output muted; all flat 15 v bw = 20 hz to 20 khz all gain = 0db 20 v s/n signal to noise ratio (qdin) all gain = 0db flat; vo = 2vrms 100 db bass treble at 12db; a-weighted; v o = 2.6v rms 96 db table 24. audio processor (continued) (vs = 8v; tamb = 25c; rl = 10k ; all gains = 0db; f = 1khz; unless otherwise specified) symbol parameter test condition min. typ. max. unit
electrical characteristcs TDA7513T 22/84 note: the sm pin is active low (mute = 0) 2.4 stereo decoder d distortion (qdin) vin = 1vrms; all stages 0db 0.012 0.1 % vin = 1vrms; bass & treble = 12db 0.05 0.1 % sc channel separation left/right (qdin) 80 db et total tracking error av = 0 to -20db -1 0 1 db av = -20 to -60db -2 0 2 db bus inputs vil input low voltage 0.8 v vih input high voltage 2.5 v iin input current vin = 0.4v -5 5 a vo output voltage sda acknowledge i o = 1.6ma 0.4 v 1. see note in programming part table 24. audio processor (continued) (vs = 8v; tamb = 25c; rl = 10k ; all gains = 0db; f = 1khz; unless otherwise specified) symbol parameter test condition min. typ. max. unit table 25. stereo decoder (vcc = 8v; deemphasis time constant = 50s, vmpx = 305mvrms (75khz deviation), fm= 1khz, gv = 4db, tamb = 27 c; unless otherwise specified) symbol parameter test condition min. typ. max. unit rin input resistance fm 70 100 130 k am 1.422.6 k gv stereo decoder input gain min 0.5 db 2.25 db 4.0 db max 5.75 db svrr supply voltage ripple rejection vripple = 100mv; f = 1khz 35 60 db a max. channel separation 30 45 db thd total harmonic distortion 0.02 0.3 % (s + n)/n signal plus noise to noise ratio a-weighted, s = 2vrms @ apout 80 91 db
TDA7513T electrical characteristcs 23/84 mono/stereo switch vpthst1 pilot threshold voltage for stereo, pth = 1 15 mv vpthst0 pilot threshold voltage for stereo, pth = 0 25 mv vpthmo1 pilot threshold voltage for mono, pth = 1 12 mv vpthmoo pilot threshold voltage for mono, pth = 0 19 mv pll f/f lock range -6 +6 % f0 center frequency range min vco vtuning fixed to reference voltage 328 khz max 619 khz step 9.4 khz pilmax maximum input pilot voltage @tunerin 276 mv deemphasis and highcut hc50 deemphasis time constant bit 7, subadr, 10 = 0, vlevel >> vhch 25 50 75 s hc75 deemphasis time constant bit 7, subadr, 10 = 1, vlevel >> vhch 50 75 100 s hc50 highcut time constant bit 7, subadr, 10 = 0, vlevel >> vhcl 100 150 200 s hc75 highcut time constant bit 7, subadr, 10 = 1, vlevel >> vhcl 150 225 300 s stereoblend and highcut control ref5v internal reference voltage 4.7 5 5.3 v lgmin min. level gain -1 0 1 db lgmax max. level gain 8 10 12 db lgstep level gain step resolution 0.3 0.67 1 db vsblmin min. voltage for mono 25 29 33 %ref5v vsblmax max. voltage for mono 54 58 62 %ref5v vsblstep step resolution 2.2 4.2 6.2 %ref5v vhchmin min. voltage for no highcut 38 42 46 %ref5v vhchmax max. voltage for no highcut 62 66 70 %ref5v vhchstep step resolution 5 8.4 12 %ref5v symbol parameter test condition min. typ. max. unit table 25. stereo decoder (continued) (vcc = 8v; deemphasis time constant = 50s, vmpx = 305mvrms (75khz deviation), fm= 1khz, gv = 4db, tamb = 27 c; unless otherwise specified) symbol parameter test condition min. typ. max. unit
electrical characteristcs TDA7513T 24/84 2.5 noise blanker vhclmin min. voltage for full highcut 12 17 22 %vhch vhclmax max. voltage for full highcut 28 33 38 %vhch vhclstep step resolution 2.2 4.2 6.2 %vhch carrier and harmonic suppression at the output 19 pilot signal f = 19khz 40 50 db 38 subcarrier f = 38khz 75 db 57 subcarrier f = 57khz 62 db 76 subcarrier f = 76khz 90 db table 25. stereo decoder (continued) (vcc = 8v; deemphasis time constant = 50s, vmpx = 305mvrms (75khz deviation), fm= 1khz, gv = 4db, tamb = 27 c; unless otherwise specified) symbol parameter test condition min. typ. max. unit table 26. noise blanker symbol parameter test condition min. typ. max. unit vtr trigger threshold (1) (2) meas. with v peak = 0.9v nbt = 111 (3) 30 (3) mv nbt = 110 (3) 35 (3) mv nbt = 101 (3) 40 (3) mv nbt = 100 (3) 45 (3) mv nbt = 011 (3) 50 (3) mv nbt = 010 (3) 55 (3) mv nbt = 001 (3) 60 (3) mv nbt = 000 (3) 65 (3) mv vtrnoise noise controlled trigger threshold (4) meas. with vpeak = 1.5v nct = 00 (3) 260 (3) mv nct = 01 (3) 220 (3) mv nct = 10 (3) 180 (3) mv nct = 11 (3) 140 (3) mv vrect rectifier voltage vmpx = 0mv nrd (8) = 00 0.5 0.9 1.3 v v mpx = 50mv; f = 150khz 1.5 1.7 2.1 v vmpx = 200mv; f = 150khz 2.2 2.5 2.9 v
TDA7513T electrical characteristcs 25/84 vrect dev deviation dependent rectifier voltage (5) meas. with vmpx = 800mv (75khz dev.) ovd = 11 0.5 0.9 1.3 v ovd = 10 0.9 1.2 1.5 v ovd = 01 1.7 2 2.3 v ovd = 00 2.5 2.8 3.1 v vrect fs fieldstrength controlled rectifier voltage (6) rectifier voltage 4) v mpx = 0mv v level << v sbl (fully mono) fsc = 11 0.5 0.9 1.3 v fsc = 10 0.9 1.4 1.5 v fsc = 01 1.7 1.9 2.3 v fsc = 00 2.1 2.4 3.1 v ts suppression pulse duration (7) signal holdn in testmode blt = 00 38 s blt = 10 32 s blt = 01 25.5 s blt = 00 22 s vrectadj noise rectifier discharge adjustment (8) signal peak in te s t m o d e nrd = 00 (8) (3) 0.3 (3) v/ms nrd = 01 (8) (3) 0.8 (3) v/ms nrd = 10 (8) (3) 1.3 (3) v/ms nrd = 11 (8) (3) 2 (3) v/ms srpeak noise rectifier charge signal peak in te s t m o d e pch = 0 (9) (3) 10 (3) mv/ s pch = 1 (9) (3) 20 (3) mv/ s vadjmp noise rectifier adjustment through multipath (10) signal peak in te s t m o d e mpnb = 00 (10) (3) 0.3 (3) v/ms mpnb = 00 (10) (3) 0.5 (3) v/ms mpnb = 00 (10) (3) 0.7 (3) v/ms mpnb = 00 (10) (3) 0.9 (3) v/ms 1. all thresholds are measured using a pulse with tr =2ms ,thigh = 2ms and tf = 10ms. the repetition rate must not icrease the peak voltage. 2. nbt represents the noiseblanker byte bits d2 , d0 for the noise blanker trigger threshold. 3. by design/characterization fu nctionally guaranteed through dedicated test mode structure. 4. nat represents the noiseblanker byte bit pair d4 , d3 for the noise controlled trigger adjustment. 5. ovd represents the noiseblanker byte bit pai r d7, d6 for the over deviation detector. 6. fsc represents the fieldstrength byte bit pair d1, d0 for the fieldstrength control. 7. blt represents the speaker rr byte bit pair d7, d6 for the blanktime adjustment. 8. nrd represents the configuration byte bit pair d1 , d0 for the noise rectifier discharge adjustment. 9. pch represents the stereo decoder byte bit d5 for the noise rectifier charge current adjustment. 10. mpnb represents the highcut byte bit d7 and the field st rength byte d7 for the noise rectifier multipath adjustment table 26. noise blanker (continued) symbol parameter test condition min. typ. max. unit
electrical characteristcs TDA7513T 26/84 2.6 multipath and quality detectors table 27. multipath and quality detectors symbol parameter test condition min. typ. max. unit fcmp center frequency of multipath bandpass stereodecoder locked on pilottone 19 khz gbpmp bandpass gain bits d 2 , d 1 configuration byte = 00 6 db bits d 2 , d 1 configuration byte = 10 12 db bits d 2 , d 1 configuration byte = 01 16 db bits d 2 , d 1 configuration byte = 11 18 db grect mp rectifier gain bits d 7 , d 6 configuration byte = 00 7.6 db bits d 7 , d 6 configuration byte = 01 4.6 db bits d 7 , d 6 configuration byte = 10 0 db bits d 7 , d 6 configuration byte = 11 off ichmp rectifier charge current bit d 5 configuration byte = 0 0.5 a bit d 5 configuration byte = 1 1 a idismp rectifier discharge current 0.5 1 1.5 ma a multipath influence factor addr. 12 / bit 5+6 00 0.7 db 01 0.85 db 10 1 db 11 1.15 db b noise influence factor addr. 16 / bit 1+2 00 15 db 01 12 db 10 9 db 11 6 db
TDA7513T functional description 27/84 3 functional description 3.1 fm section 3.1.1 mixer1, agc and 1st if mixer1 is a wide dynamic range stage with lo w noise and large input signal performance. the mixer1 tank center frequency can be adjusted by software (if1t). the agc operates on different sensitivities and bandwidths (fmagc) in order to improve the input sensitivity and dynamic range (keyed agc). the output signals of agc are controlled voltage and current for pre-amplifier and pre-stage pin diode attenuator. two 10.7mhz amplifiers (ifg1 - fixed gain - and ifg2 - programmable) correct the if ceramic insertion loss. 3.1.2 mixer2, limiter and demodulator in this 2 nd mixer stage the first 10.7mhz if is converted into the second 450khz if. a multi- stage limiter generates signals for the complete integrated demodulator without external tank. mpx output dc offset compensation is possible via software. 3.1.3 quality detection and iss field strength parallel to the mixer2 input a 10.7mhz limiter generates a signal for the digital if counter and a fieldstrength output signal. this internal unfiltered fieldstrength is used for adjacent channel and multipath detection. the behaviour of this output signal can be corrected for dc offset (sl). the internally generated unfiltered fieldstrength is filtered at pin #smetertc and used for softmute function, fm agc keying and generation of iss filter switching signal for weak input level (sm). (see figure 1. ) 3.1.4 adjacent channel detector the input of the adjacent channel detector is ac coupled to the internal unfiltered fieldstrength. a programmable and configurable highpass or bandpass filter (acf) and amplifier (acg) followed by a rectifier measure the adjacent channel content. this voltage is compared with an adjustable threshold (acwth, acnth) comparator (comparator1). the output signal of this comparator generates a dc level at pin15 with a programmable time constant. time constant control (tiss) for the adjacent channel is made by linearly charging and discharging an external capacitor following. the charge current is fixed and the discharge current is controlled by i 2 c bus. this level produces digital signals (ac, ac+) after comparing by the following comparator4. the adjacent channel information after filtering and rectification is available as analog output on pin #tunquality (the gain can be selected via i 2 c bus) in combination with multipath content information. it is possible to enable adjacent channel content information output only via i 2 c bus control. 3.1.5 multipath detector the input of the multipath detector is ac coupled to the internal unfiltered fieldstrength. a programmable band-pass filter (mpf) and amplifier (mpg) followed by a rectifier measures the multipath content. this voltage is compared with an adjustable threshold (mpth) comparator (comparator2). the output signal of this comparator2 is used to disable the adjacent channel detector control of the iss filt er in case of strong multipath, which would otherwise result in bandwidth reduction because of the multipath-induced high-frequency
functional description TDA7513T 28/84 content of the fieldstrength signal. the multipath detector influence on the adjacent channel detector is selectable by i 2 c bus (mpoff). the multipath in formation after filtering and rectification is available as analog output on pin #tunquality (the gain can be selected via i 2 c bus) in combination with the adjacent channel content information. it is possible to enable multipath content information output only via i 2 c bus control. 3.1.6 450khz if narrow bandpass filter (iss filter) the device features an additional automatically selectable if narrow bandpass filter for suppression noise and adjacent channel signals. this narrow filter has three switchable bandwidth positions: narrow range (80khz), mi d range (120khz) and weather band (30khz). when the iss filter is not inserted the if bandwidth (wide range) is defined only by the ceramic filter chain. the filter is switched in after mixer2 before the 450khz limiter stage. the centre frequency can be finely adjusted (aiss) by software. 3.1.7 deviation detector in order to avoid excessive audio distortion the narrow iss filter is switched off when overdeviation of the incoming signal is detecte d. the demodulator output signal is low-pass filtered and rectified to generate a dc level in an external capacitor through a software- controlled current (tdev). this level is compared with a programmable threshold (dwth, dth) comparator (comparator3) to generate two digital signals (dev, dev+). 3.1.8 iss switch logic all digital signals coming from adjacent channel detector, deviation detector and softmute are combined in a decision matrix to generate the control signals for the iss filter switch. the if bandpass switch mode can be also controlled by software (isson, iss30, iss80, issctl). the switch-on of the if bandpass can be further controlled from the outside by manipulation of the voltage at pin #isstc. two applicatio n modes are available (appm). the conditions are described in table 1. 3.1.9 soft mute control the external fieldstrength signal at pin #smete rtc is the reference for mpx mute control. the start point and mute depth are programmable over a wide range. the time constant is defined by the external capacitor connected to pin #fmmutetc. additionally adjacent channel mute function is supported. a software-configurable highpass / bandpass filter centered at about 100khz followed by an amplifier and a peak rectifier generates adjacent noise information starting from the mpx output; the information is acted upon with the same time constant as the softmute by the mpx muting circuit. the adjacent channel mute starting point, slope and depth are i 2 c bus programmable. 3.1.10 station det ector and seek stop a station detection function is provided for easy seek stop operation. the unfiltered fieldstrength signal is compared with a programmable threshold and the result (logic '1' if the current station strength is higher than the threshold) is combined by an and gate with the if counter output (logic '1' if the current channel is centered within a programmable window around the desired frequency). the result is available on pin #sd for direct connection to the microprocessor. channel quality assessment for rds alternate frequency operation makes use of the sd signal in conjunction with analog information on adjacent channel and
TDA7513T functional description 29/84 multipath content on pin #tunquality and channel noise (furtherly combined with multipath content information) on pin #quality. 3.2 am section the upconversion mixer1 is combined with a gain control circuit 1 sensing three input signals: ultra-narrow band information (from the if2 amplifier input - pin #amif2ampin), narrow-band information (from the mixer2 input - pin #ammix2in) and wide band information (from the mixer1 input - pins #ammix1in+ and #ammix1in-). this gain control circuit generates two output signals: a current for p-i-n diode attenuation and a voltage for the external preamplifier cascode upper base. it is possible to put in a separate narrow bandpass filter before mixer2 at pin 58. the intervention point for first agc on all three bands is programmable by software. the oscillator frequency for mixe r1 is generated by dividing the fm vco frequency (amd) by 6, 8 and 10 (6 for japan applications, 8 for eastern european applications, 10 for western european and north american operation). in mixer2 the if1 is downconverted into the 450khz if2. the gain of mixer2 is reduced by the 2nd agc after the gain of the subsequent if2 amplifier has been reduced by 30db. the mixer2 tank center frequency is software-adjustable (if2t). after channel selection is done by the ceramic filt er, a 450khz amplifier wi th a gain control is included. the gain is controlled by the agc2 loop over a 30db range; the full gain with no agc applied is programmable. the am demodulation is made by multiplication of the if2 amplifier output by the amplified and limited signal coming from the if2 amplifier input, thus making the demodulation process inherently linear. the demodulated audio signal is low-passed by the capacitor at pin #amagc2tc to produce the dc agc2 voltage. the low-pass time constant is switchable by a ratio of 30 in order to reduce the settling time of the agc2 in 'seek' mode (amseek). the fm 450khz limiter is used to generate the square wave needed by the am demodulator, a fieldstrength indication and to feed the am if counter. the fieldstrength information is generated mainly from the narrow-band signal at the input of the if2 amplifier; since the dynamic range at that input is limited by the agc2 action, a fieldstrength extension is made adding the contribution of the signal at the inpu t of mixer2. since the bandwidth there is very large, though, the latter contribution is enabled only if the strength of the narrow-band signal is higher than an internally defined threshol d. the fieldstrength signal must be low-passed to remove audio content and this is done by use of the capacitor at pin #smetertc with an i 2 c bus programmable internal resistor. the value of the capacitor is determined for correct fm operation; the value of the internal resistor for am is selectable in order to make the am time constant suitable for am operation. a station detection function is provided for easy seek stop operation. the fieldstrength signal is compared with a programmable threshold and the result (logic '1' if the current station strength is higher than the threshold) is combined by an and gate with the if counter output (logic '1' if the current channel is centered within a programmable window around the desired frequency). the result is available on pin #sd for direct connection to the microprocessor.
functional description TDA7513T 30/84 3.3 pll and if counter section the ic contains a frequency synthesizer and a lo op filter for the radio tuning system. only one vco is required to build a complete pll system for fm and am upconversion. for auto search stop operation an if counter system is available. 3.3.1 pll frequency synthesizer block the counter works in a two stages configuration. the first stage is a swallow counter with a two-modulus (32/33) precounter. the second stage is an 11-bit programmable counter. the circuit receives the scaling factors for the programmable counters and the values of the reference frequency via i 2 c bus. the reference frequency is generated by an adjustable internal (xtal) oscillator followed by the reference divider. the reference and step- frequencies are independently selectable (rc, pc). the phase-frequency detector outputs switches the programmable current source. the loop filter integrates the latter to a dc voltage. the current source values is programmable with 6 bits received via i2c bus (a, b, currh, lpf). to minimize the noise induced by the digital part of the system, a special guard area is implemented. the loop gain can be adjusted for different conditions by setting the current values of the chargepump generator. 3.3.2 frequency generation for phase comparison the vco signal is fed to a two-modulus counter (32/33) prescaler, which is controlled by a 5-bit divider (a). a 5-bit register (pc0 to pc 4) controls this divider. the output of the prescaler is connected to an 11-bit divider (b), controlled by an 11-bit pc register (pc5 to pc15). the following expressions relate the divider output frequency (f syn , forced by the loop to equal the reference frequency at the phase comparator input f ref ) to the vco frequency (f vco ) and to the crystal oscillator frequency (f xtal ): f xtal = (r+1) x f ref f vco = [33 x a + (b + 1 - a) x 32] x f ref f vco = (32 x b + a + 32) x f ref important: for correct operation: a 32; b a 3.3.3 three state phase comparator the phase comparator generates a phase error signal according to phase difference between f syn and f ref . this phase error signal drives the charge pump current generator. 3.3.4 charge pump current generator this system generates correction current pulses with a polarity and a duration dictated by the phase error signal. the current absolute values are programmable through register a for high current and register b for low current. the charge pump operates in high current mode when the phase difference between between f syn and f ref is high. the switch back to low current mode can be done either automatically as a function of the inlock detector output (setting bit ldena to "1") or via software. after reaching a phase differenc e equivalent to 10-40 ns (programmable) and a delay multiple of 1/f ref , the chargepump is forced in low current mode. a new pll divider programming by i 2 c bus will switch the chargepu mp into high current mode.
TDA7513T functional description 31/84 a few programmable phase errors (d0, d1) are available for inlock detection. the count of detected inlock informat ions to release the inlock signal is adjustable (d2, d3), to avoid switching to low current during a frequency jump. 3.3.5 low noise cmos op-amp an internal voltage divider at pin #lfref is connected to the positive input of the low noise op-amp. the charge pump output is connected to the negative input. this internal amplifier in cooperation with external components provides the active loop filter. only one loop filter connection is provided because the same refere nce frequency is used for both am and fm operation. the pin #lfhc is connected in such a way as to partially shunt the loop filter in order to decrease the time constant of the filter itself during jumps with high current mode activated. 3.3.6 if counter block the input signal for fm and am has the same structure although fm if is measured at if1 (10.7mhz) and am if is measured at if2 (450khz). the degree of integration is adjustable to up to eight different measuring cycle times. the tolerance of the accepted count value is adjustable to reach the optimum compromise between search speed and evaluation precision. t center frequency of the measured count value is adjustable to fit the if-filter tolerance. 3.3.7 the if counter mode the if counter works in 2 modes controlled by the ifcm register. 3.3.8 sampling timer a 14-bit programmable (irc) sampling timer generates the gate signal for the main counter. in fm mode a 6.25khz frequency reference is generated for this purpose, whereas in am mode this reference becomes 1khz. these reference frequencies are further divided to generate the measurement time windows (160us - 320 s ... 20.48ms for fm, 1ms - 2ms ? 128ms for am). 3.3.9 intermediate frequency main counter this counter is a 11 - 21-bit synchronous au toreload down counter. five bits (cf) are programmable to allow the adjustment to the peak of the if-filter response. the counter length is automatically adjusted to the chosen sampling time and counter mode (fm, am). the if counter is also used to automatically perform the stereo decoder 456khz vco frequency adjustment. at the start the counter will be loaded with a value equivalent to the expected number of zero-crossing in the sampling time window (t sample x f if ). if the correct frequency is applied to the if counter input, at th e end of the sampling ti me the main co unter will have either a 0h state or a 1fffffh state stored. a deviation from the expected if will result in a difference of the counter fina l state from either of these values. the counter final state is then compared to either 0h or 1fffffh minus a number of lsb's determined by the acceptable frequency window programming (ew).
functional description TDA7513T 32/84 if the comparison result is good the if counter output changes from low to high and is made available outside at the pin #sd (after a nand operation with the signal strength evaluation circuit). the following relationships apply: t tim = (irc + 1) / f osc t cnt = (cf + 1697) / f if (fm mode) t cnt = (cf + 448) / f if (am mode) where t tim = if timer cycle time (sampling time) t cnt = if counter cycle time counting succesful: t cnt - t err = t tim = t cnt + t err count failed: t tim > t cnt + t err t tim < t cnt - t err where t err = discrimination window (controlled by the ew registers) the if counter can be started only by inlock information from the pll, and it is enabled by software (ifena). 3.3.10 adjustment of the meas urement time and frequency window the measurement precision is adjustable by controlling the width of the frequency discrimination window through control registers ew0 to ew2. the center frequency of the discrimination window is adjustable by the control register cf0 to cf4. the measurement time per cycle is adjustable by setting the registers ifs0 - ifs2. 3.4 audio processor 3.4.1 input multiplexer cd quasi differential 1 cd quasi differential 2 stereodecoder input (for both fm and am signals). 3.4.2 input stages the quasi-differential input stages (see figure 2. ) have been designed to cope with some cd players in the market having a significant high source impedance which affects strongly the common-mode rejection of "normal" differential input stages. the additional buffer of the cd input avoids this drawback and offers the full common-mode rejection even with those cd players. the quasi-differential input can also be used with normal stereo single-ended output signal sources such as tapeout.
TDA7513T functional description 33/84 3.4.3 autozero in order to reduce the number of pins there is no ac coupling between the in-gain and the following stage, so that in theory any offset generated by or before the in-gain stage would be transferred or even amplified to the output. to avoid this undesired situation a special offset cancellation stage called autozero is implemented. this stage is located before the volume block to eliminate all offsets generated by the stereodecoder, the input stage and the in-gain stage (please note that externally generated offsets, e.g. those generated because of leakage current into the coupling capacitors, are not cancelled). the auto-zeroing is started ev ery time the apsd data byte 0 is selected and takes a maximum time of 0.6ms. the rationale behind th is choice is that th e apsd byte encodes the signal source selection, and auto-zero ought to be performed every time a new source is selected. to avoid audible clicks the audioprocessor is muted before the volume stage during this time. 3.4.4 autozero remain in some cases, for example if the up is executing a refresh cycle of the i 2 c bus programming, it is not necessary to start a new autozero action because no new source is selected and an undesired mute would appear at the outputs. for such applications the device can be switched in the "autozero re main mode" (bit 6 of the apsd subaddress byte). if this bit is set to high, the apsd da ta byte 0 can be loaded without invoking the autozero and the old adjustment value remains. 3.4.5 softmute the digitally controlled softmute stage allows signal muting and unmuting with a i 2 c bus programmable slope. the mute process can either be activated by pin #audiomute or i 2 c bus. the slope is realized in a special s-shaped curve so as to slowly mute in the critical regions (see figure 4. ). for timing purposes the bit 3 of the i 2 c bus output register is set to 1 from the start of muting until the end of unmuting. 3.4.6 bass there are four parameters programmable in the bass filter stage: (see figure 5 , 6 , 7 , and 8 ): 3.4.7 attenuation figure 5 shows the attenuation as a function of frequency at a center frequency at a center frequency of 80hz. 3.4.8 center frequency figure 6 shows the four possible center frequencies: 60,70,80 and 100hz. 3.4.9 quality factors figure 7 shows the four possible quality factors: 1, 1.25, 1.5 and 2.
functional description TDA7513T 34/84 3.4.10 dc mode in this mode the dc gain is increased by 5.1db. in addition the programmed center frequency and quality factor is decreased by 25%: this can be used to realize different center frequencies or quality factors with respect to the valu es listed in the "bass" section. 3.4.11 mid there are 3 parameters programmable in the mid filter stage (see figure 9 , 10 and 11 ): 3.4.12 attenuation figure 9 shows the attenuation as a function of frequency at a center frequency of 1khz. 3.4.13 center frequency figure 10 shows the four possible center frequencies: 500hz, 1khz, 1.5khz and 2khz. 3.4.14 quality factor figure 11 shows the two possible quality factors (1 and 2) at a center frequency of 1khz. 3.4.15 treble there are two parameters programmable in the treble filter stage (see figure 12 , 13 ): 3.4.16 attenuation figure 12 shows the attenuation as a function of frequency at a center frequency of 17.5khz. 3.4.17 center frequency figure 13 shows the four possible center fre-quencies: 10, 12.5, 15 and 17.5khz. 3.4.18 ac coupling in some applications additional signal manipulations are desired such as surround-sound processing or more extensive band equalizing. for this purpose a ac-coupling is placed before the speaker-attenuators, which can be activated or internally shorted by bit7 in the apsd data byte 0. the input impedance of the ac inputs is 25k . the external ac coupling is advised for those applications where ve ry low-level "pop" performance is a must. 3.4.19 speaker attenuator the speaker attenuators have exactly the same structure and range as the volume stage. 3.5 stereo decoder the stereo decoder part of the present device (see figure 14 ) contains all functions necessary to demodulate the mpx signal such as pilot tone-dependent mono/stereo switch as well as "stereoblend" and "highcut" functions.
TDA7513T functional description 35/84 3.5.1 stereo decoder mute the device has a fast and easy-to-control rds mute function meant for "freezing" the stereo decoder status during the rds af check time period. when this function is invoked three effects take place: 1. the stereo decoder input impedance changes to infinity (condition known as high- ohmic input); this prevents the decouplin g capacitor between the pins #tuner_out (tuner output) and #tuner_in (stereo decoder input) to be discharged by a channel with a potentially different dc output for the duration of the af check; 2. the stereo decoder pll pilot detector is held at the current value; 3. the external capacitor of the multipath detector used inside the stereo decoder for quality control is disconnected from the dection circuit in order to make quality checking the af faster. the rds mute is activated from pin #rdsmu te in and with bit 0 of apsd data byte 9. 3.5.2 stereo decoder input stage, ingain + infilter the stereo decoder is crossed by both the fm and the am signal: the input impedance of the pin #tuner_in is different between the two modes in order to allow the same external coupling components between #tuner_out and #tuner_in to realize different filtering functions. whilst the input impedence in fm is 100k , in am the input impedance is decreased to 2k : this allows the realization of typi cal high-pass filters with a corner frequency of 70hz for am and less than 5hz for fm. the low-pass section of the typical am transfer function is realized by use of the internal fm high-cut filter. the ingain stage allows to adjust the mpx signal to a magnitude of about 1vrms internally which is the recommended value. the 4th order input filter has a corner frequency of 80khz and is used to attenuate spikes and nose and acts as an anti aliasing filter for the following switch capacitor filters. 3.5.3 demodulator in the demodulator block the left and the right channel are separated from the mpx signal. in this stage the 19 khz pilot tone is cancelled. to reach a good channel separation the device offers an i 2 c bus programmable roll-off adjustment which is able to finely compensate for the low-pass behaviour of the tuner section. an adjustment to better than 40db channel separation is possible. the bits for this adjustment are located ogether with the fieldstrength adjustment in one byte. this gives the possibility to perform an optimization step during the produc tion of the carradio where the channel separation in relation to the fieldstrength control are trimmed. the setup of the stereoblend characteristics, which is fully programmable, is de-scribed in chapter 3.5.8 . 3.5.4 de-emphasis and highcut. one filter is provided to realize de-emphasis and hig h-cut filtering. the lowpass filter for the de-emphasis allows to choose between a time constant of 50 s and 75 s. the filter time constant can further be controlled in both cases over the range = 2 deemph. the control is automatically performed as a function of the filtered field strength level: inside
functional description TDA7513T 36/84 the highcut control rang e (between vhch and vhcl) the level is converted into a 5 bit word which drives the lowpass time constant. the fm highcut function can be switched off by i 2 c bus (bit 0,of apsd data byte 11). the setup of the highcut characteri stics is described in 2.9. in am the high-cut filter can be programmed (bit 3 to 7 of apsd data byte 16) to a fixed value (inside the above-mentioned programmable range) in order to provide the desired lowpass characteristic of the am signal. 3.5.5 pll and pilot tone detector the pll is tasked with locking on the 19khz pilot tone during a stereo transmission to allow the correct demodulation. the detector enables the stereo demodulation if the pilot tone reaches the selected pilot tone threshold vpthst. two different thresholds are available. the detector output can be checked by reading the status byte of the tda7407 via i 2 c bus. 3.5.6 fieldstrength control the filtered field strength signal is fed to the stereo decoder where it can be finely adjusted and normalized so that it can be used to control the highcut and stereoblend functions. furthermore the adjusted signal can also be used to control the noise-blanker thresholds. the unfiltered field strength meter, on the other hand, is used as input for the stereo decoder multipath detector. these additional functions are described in sections 3.3 and 4. 3.5.7 level input and gain to help suppress undesired high frequency modulation of the highcut and stereoblend functions the tuner filtered fi eld strength signal (level) is lowp assed by a combination of a 1st order rc low-pass at 53khz (working as anti-aliasing filter) and a 1st-order switched capacitor lowpass at 2.2khz. the second stage is a programmab le gain stage to finely adapt the level signal internally against tuner spread (see testmode section 5 levelintern). the gain is widely programmable in 16 steps from 0db to 10db (step = 0.67db). 3.5.8 stereoblend control the stereoblend control block converts the internal level voltage (levelintern) into a demodulator-compatible analog signal which is used to control the channel separation between 0db and the maximum separation. this control range has a fixed upper limit which is the in-ternal reference vo ltage ref5v. the lower limit can be programmed between 29.2% and 58% of ref5v in 4.167% steps (see figure 17 ). to adjust the level voltage to the proper range two values must be defined: the level gain lg and vsbl (see figure 17 ). to adjust the voltage where the full channel separation is reached (vst) the level gain l g has to be defined. the following equation can be used to estimate the gain: the gain l g can be programmed with 4 bits. the mono voltage vmo (0db channel separation) can be chosen sele cting vsbl. all the necessary in ternal reference voltages l g ref5v fieldstrengthvoltage stereo [] ------------------------------------------------------------------------------------------- - =
TDA7513T functional description 37/84 like ref5v are derived from a bandgap circuit, therefore they have a temperature coefficient which is practically zero. 3.5.9 highcut control the highcut control setup is similar to the stereoblend control setup, the starting point vhch can be set with 2 bits to be 42, 50, 58 or 66% of ref5v whereas the range can be set to be 17, 22, 28 or 33% of vhch (see figure 18 ). 3.5.10 noise blanker in the automotive environment the mpx signal is disturbed by spikes produced for example by the ignition and by the wiper motor. the aim of the noiseblanker part is to cancel the audible influence of these spikes. to perform this function the output of the stereo decoder is held at the curent voltage for a time between 22 and 38 s (programmable). the block diagram of the noiseblanker is shown in fig.20. in the first stage the spikes are detected but to avoid a wrong triggering on high frequency (white) noise a complex trigger desensitization control is implemented. behind the trigger stage a pulse former generates the "blanking" pulse 3.5.11 trigger path the incoming mpx signal is highpassed by a filter with a corner frequency of 140khz, amplified and rectified. the rectified signal (rect) is lowpassed to generate the signal peak. also noise at a frequency higher than 140khz in creases peak. th e lowpass output voltage can be adjusted by changing the noise rectifie r discharge current. the peak voltage is fed to a threshold generator which adds to the peak voltage a constant voltage vth, thus producing the tr igger threshold peak+vth. both rect and peak+vth are fed to a comparator which trig-gers a re-triggerable monoflop. the monoflop output activates the sample-and-hold circuits in the signalpath for a selectable duration. 3.5.12 automatic noise contro lled threshold adjustment (atc) there are mainly two inde pendent possibilities to prog ram the trigger threshold: a) programming the so-called "low threshold" in 8 steps; b) programming the so-called "noise adjusted threshold" in 4 steps the "low threshold" is active in combination with a good mpx signal without any noise; the peak voltage is less than 1v. the sensitiv ity in this operat ing mode is high. if the mpx signal is noisy the peak voltage increases due to the higher noise, which is also rectified. with increasing of the peak voltage the trigger thre shold increases, too. this particular mechanism ("noise adjusted threshold") is programmable in 4 steps. 3.6 automatic threshold control mechanism 3.6.1 automatic threshold contro l by the stereoblend voltage besides the noise controlled th reshold adjustment there is an additional possibility to influence the trigger threshold which depends on the stereoblend control. the point where the mpx signal starts to become noisy is fixed by the rf part. therefore also the starting point of the normal noise controlled trigger adjustment is fixed. in some
functional description TDA7513T 38/84 cases the behavior of the noiseblanker can be improved by increasing the threshold even in a region of higher fieldstrength. sometimes a wrong triggering occures for the mpx signal often shows distortion in this range which can be avoided even if using a low threshold. because of the overlap of this range and the range of the stereo/mono transition it can be controlled by stereoblend. this threshold increase is programmable in 3 steps or switched off. 3.6.2 over deviation detector if the system is tuned to stations with a hi gh de-viation the noiseblanker might be erroneously triggered on the higher frequencies of the modulation. to avoid this unnecessary muting of the signal, the noiseblanker offers a deviation-dependent threshold adjustment. by rectifying the mpx signal a further signal representing the actual deviation is obtained. this is used to increase the peak voltage. th e circuit offset, gain (and enabling) are programmable in 3 steps. 3.7 multipath detector using the stereo decoder multipath detector the audible effects of a multipath condition can be minimized. a multipath condition is detected by rectifying the 19khz spectrum in the fieldstrength signal. an external capacitor is used to define the attack and decay times (see figure 20 ). the pin #multipathtc is externally connected to a capacitor of about 47nf and the mpin signal is internally connected to the unfiltered field strength. to avoid losing the information stored in the external capacitor during af checks but at the same time to allow some fast multipath dete ction capability during the same af check period, the external capacitor is disconnected by the mp-hold switch. this switch is controlled directly by the pin #rdsmute. moreover, selecting the "internal influence" in the configuration byte, the channel separation is automatically reduced during a multipath condition according to the voltage appearing at the pin #multipathtc. 3.7.1 programming to obtain a good multipath performance an adaptation is necessary. therefore tha gain of the 19khz bandpass is programmable in four steps as well as the rectifier gain. the attack and decay times can be set by properly choosing the value of the external capacitor. 3.8 quality detector the device offers a quality detector output voltage representing the quality of the fm reception conditions. this voltage is deriv ed from mpx noise information and multipath information according to the following formula: quality = 1.6 (v noise -0.8v)+ a (ref5v- v mpout ) the noise signal is the peak signal of the nois e blanker without additional influences. the multipath information weight "a" can be programmed between 0.7 and 1.15. the circuit output pin #quality is a low impedance output able to drive external circuitry as well as suitable to be simply fed to an a/d converter for rds applications.
TDA7513T functional description 39/84 3.8.1 af search control the device is supplied with several functionality to support af checks using the stereo decoder. as already mentioned before the high ohmic mute feature at the stereo decoder input avoids any clicks during the jump condition. it is possible at the same time to evaluate the noise and multipath content of the alternate frequency by using the quality detector output. during this time the multipath detector is automatically switched to a small time constant. one dedicated pin (#rdsmute) is provided in order to separate the audioprocessor-mute and stereodecoder af-functions. 3.9 i 2 c bus interface i 2 c bus protocol is supported. this protocol defines any device that sends data onto the bus as a transmitter, and the receiving device as the receiver. the device that controls the transfer is a mast er and device being controlled is the slave. the master will always initiate data transfer and provide th e clock to transmit or receive operations. the present device always acts as slave, both in transmission and in reception mode. 3.9.1 data transition data transition on the sda line must only occur when the clock scl is low. sda transitions while scl is high will be interpreted as start or stop condition. 3.9.2 start condition a start condition is defined by a high to low transition of the sda line while scl is at a stable high level. this "start" condition must precede any command and initiate a data transfer onto the bus. the device continuously monitors the sda and scl lines for a valid start and will not response to any comm and if this conditi on has not been met. 3.9.3 stop condition a stop condition is defined by a low to high transition of the sda while the scl line is at a stable high level. this condition terminat es the communication between the devices and forces the bus interface of the device into the initial condition. 3.9.4 acknowledge indicates a successful data transfer. the transmitter will release the bus after sending 8 bits of data. during the 9th clock cyc le the receiver will pull the sda line to low level to indicate it received the eight bits of data. 3.9.5 data transfer during data transfer the device samples the sda line on the leading edge of the scl clock. therefore, for proper device operation the sda line must be stable during the scl low to high transition.
functional description TDA7513T 40/84 3.9.6 device addressing to start the communication between two devices, the bus master must initiate a start instruction sequence, followed by an eight bit word corresponding to the address of the device. the device recognizes the following two addresses: ? 1100010d tuner part address ? 1000110d stereo decoder / audio processor address (apsd) the last bit of the start instruction defines the type of operation to be performed: ? when set to "1", a read operation is selected (data are transferred from the device to the master) ? when set to "0", a write operation is selected (data are transferred from the master to the device) the device connected to the bus will compar e its own hardwired addr esses with the slave address being transmitted after detecting a start condition. after this comparison, the device will generate an "acknowledge" on the sda line and will perform either a read or a write operation according to the state of the r/w bit. 3.9.7 write operation following a start condition the master sends a slave address word with the r/w bit set to "0". the device will generate an "acknowledge" a fter this first transmission and will wait for a second word (the subaddress field). this 8-bit address field provides an access to any of the 64 internal addresses (32 corresponding to the tuner address and 32 corresponding to the stereo decoder / audio processor address). upon rece ipt of the subaddress the device will respond with an "acknowledge". at this time, all the following words transmitt ed to the device will be considered as data. the internal address may be automatically incremented if the auto-increment mode is selected (bit s5 of the subaddress word) . after each word has been received th e device will answer with an "acknowledge". 3.9.8 read operation if the master sends a slave address word with th e r/w bit set to "1", the device will transmit one 8-bit data word. this data word content changes according to the address corresponding to the tuner or to the stereo decoder / audio processor. the information are the following:
TDA7513T functional description 41/84 tuner stereo decoder / audio processor bit0: iss filter, 1 = on, 0 = off bit1: iss filter bandwidth, 1 = 80khz, 0 = 120khz bit2: mpout,1 = multipath present, 0 = no multipath bit3: 1 = pll is locked in , 0 = pll is locked out bit4: fieldstrength indicator, 1 = lower than softmute; 0 = higher than softmute threshold bit5: adjacent channel indicator, 1 = adjacent channel present, 0 = no adjacent channel bit6: deviation indicator, 1 = strong overdeviation present, 0 = no strong overdeviation bit7: deviation indicator, 1 = overdeviation present, 0 = no overdeviation bit2: soft mute status, 1 = on, 0 = off bit3: stereo mode, 1 = stereo, 0 = mono table 28. iss modes 1 sm ac ac+ dev dev+ isson 80khz 0000000 01x0011 01x1x10 1xx0011 1001x00 11x1x10 table 29. iss modes 2 sm ac ac+ dev dev+ isson 80khz 0000000 0100010 011xx11 0101x10 1xx0011 1001x00 1101x10 1111x11
functional description TDA7513T 42/84 figure 4. softmute timing figure 5. bass control @ fc = 80hz, q = 1 figure 6. bass center @ gain=14db q=1 figure 7. bass quality factors @ gain = 14db, fc = 80hz figure 8. bass normal and dc mode @ gain = 14db, fc = 80hz figure 9. mid control @ fc = 1khz, q = 1 1 ext. mute +signal ref -signal 1 i 2 c bus out time d97au634 -15.0 -10.0 -5.0 0.0 5.0 10.0 15.0 10.0 100.0 1.0k 10.0k 0.0 2.5 5.0 7.5 10.0 12.5 15.0 10.0 100.0 1.0k 10.0k 0.0 2.5 5.0 7.5 10.0 12.5 15.0 10.0 100.0 1.0k 10.0k 0.0 2.5 5.0 7.5 10.0 12.5 15.0 10.0 100.0 1.0k 10.0k -15.0 -10.0 - 5.0 0. 0 5. 0 10.0 15.0 10.0 100. 0 1.0k 10.0k
TDA7513T functional description 43/84 figure 10. mid center frequency @ gain =14db, q = 1 figure 11. mid q factor @ fc=1khz, gain =14db figure 12. treble control @ fc = 17.5khz figure 13. treble center frequencies @ gain = 14db 0. 0 2. 5 5. 0 7. 5 10.0 12.5 15.0 10.0 100. 0 1.0k 10.0k 0. 0 2. 5 5. 0 7. 5 10.0 12.5 15.0 10.0 100. 0 1.0k 10.0k -15.0 -10.0 -5.0 0.0 5.0 10.0 15.0 10.0 100.0 1.0k 10.0k 0.0 2.5 5.0 7.5 10.0 12.5 15.0 10.0 100.0 1.0k 10.0k
functional description TDA7513T 44/84 figure 14. block diagram of the stereo decoder figure 15. signal during stereo decoder?s softmute figure 16. internal stereo blend characteristics softmute command std mute v o t d97au638 t t
TDA7513T functional description 45/84 figure 17. relationship be tween unadjusted (level) and adjusted (levelitern) filtered field strength signals figure 18. highcut characteristics figure 19. noise blanker block diagram internal voltages t modau639 vsbl ref 5v setup of vst internal voltages t 29% ref 5v setup of vmo level level intern fieldstrenght voltage vst vmo level intern 58% vsbl vst vmo fieldstrenght voltage lowpass time constant d97au640 deemp fieldstrenght vhch vhcl 3 ? deemp + - rectifier lowpass rect + + threshold generator vth peak additional threshold control monoflop holdn mpx modau856 mpout control
functional description TDA7513T 46/84 figure 20. multipath detector block diagram
TDA7513T software specifications 47/84 4 software specifications 4.1 tuner section address organization table 30. address organization (tuner section) msb lsb function subaddr. d7 d6 d5 d4 d3 d2 d1 d0 0stby current select low current high current charge pump control and stby 1 lock detainable activation delay phase difference threshold am/fm fref bypass vcoadj clockenab pll lock detector, fm mode and tests 2 counter lsb pll counter 1 (lsb) 3 counter msb pll counter 2 (msb) 4 counter lsb pll reference counter 2 (lsb) 5 counter msb pll reference counter 2 (msb) 6 fm iss dd disable thr @ weak fs fm audio amp. mute depth fm antenna adjustment fm antenna adjustment and fm mute depth 7 seek am prescaler fm rf adjustment fm rf adjustment, am prescaler and seek 8 am stop station ifc enable df if counter control 1 and am s.s. threshold 9t sample t center if counter control 2 (central frequency and sampling time) 10 counter lsb if counter reference (lsb) 11 ifc am/fm counter msb if counter reference (msb) and if counter mode select 12 amunagc amif2amp am ultra narrow agc thresh., am if2 amplifier gain, fm softmute enable and ac test test acmute fm smut enable 13 mpqual test fm demod noise blanker fm demodulator fine adjust fm demodulator adjust, fm demod noise blanker and mp test am smeter extens
software specifications TDA7513T 48/84 14 iss ac narrowband threshold iss ac wideband threshold iss ac gain iss ac hp/bp iss 30khz on quality detection adjacent channel 15 iss mp defeat ac iss mode iss mp threshold test smet unfilter ed iss mp center iss mp ctrl on quality detection multipath 16 0 iss dd off threshold iss dd narrow/wide threshold iss dd time constant quality detection deviation 17 iss center iss time constant iss 80/120 iss on iss enable quality iss filter 18 so mode iss mp gain vco adj start test pll pll test, 456khz vco adiustment start (auto mode) 19 manual / auto manual vco frequency man set 456 man enifc 456khz vco adjustment (manual mode) 20 fm stop station fm soft mute fm stop station and soft mute thresholds 21 ac qual test adjchan mute clamp adjchan mute gain adjacent mute gain, clamping threshold and test 22 am smeter filter tc fmsmslider fm smeter slider and am smeter filter time constant 23 ift2 adjust ift1 adjust ift1 adjust 24 fmifamp2 clkse p xtal adjustment xtal adjustment and fm if amp2 25 amwagc fmnagckey am wagc an fm magc keying 26 amnagc fm demod ref frequency divider am nagc an fmdemod ref frequency divider 27 test iss iss testing 28 iss filter test test iss mp/ac test iss iss testing 29 smeter pin test test turner tuner and smeter test 30 adjchan mute disable @ low fs adjchan mute bp/hp adichan mute threshold adjchan mute disable, filtering and threshold 31 turner quality adjchan gain turner quality multipath gain fs iss activation tuner quality adjchannel and multipath gain, fs iss activation table 30. address organization (tuner section) (continued) msb lsb function subaddr. d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 49/84 4.2 tuner section subaddresses table 31. address organization addresses msb lsb d7 d6 d5 d4 d3 d2 d1 d0 1100010r/w table 32. address organization subaddress msb lsb s7 s6 s5 s4 s3 s2 s1 s0 x x autoincr subaddress table 33. address organization read mode: iss outputs msb lsb s7 s6 s5 s4 s3 s2 s1 s0 dev+ dev ac fs inlock mp bw on table 34. subaddress organisation (tuner section) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 charge pump 0000high current = 0ma 0 0 0 1 high current = 0.5ma 0010high current = 1ma 0 0 1 1 high current = 1.5ma 1 1 1 1 high current = 7.5ma 0 0 low current = 0 a 0 1 low current = 50 a 1 0 low current = 100 a 1 1 low current = 150 a 0 select low current 1 select high current tuner stand-by 0 0 0 0 0 tuner standby off 1 0 0 0 1 tuner standby on
software specifications TDA7513T 50/84 table 35. subaddress 1: pll lock detector, fm mode and test msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 charge pump 0 vco adjust lock disable 1 vco adjust lock enable 0 fref bypass disable 1 fref bypass enable tuner / pll am/fm mode 0 select am mode 1 select fm mode lock detector control 0 0 pd phase difference threshold 10ns 0 1 pd phase difference threshold 20ns 1 0 pd phase difference threshold 30ns 1 1 pd phase difference threshold 40ns 0 0 not valid 0 1 activation delay 4x1/f ref 1 0 activation delay 6x1/f ref 1 1 activation delay 8x1/f ref 0 lock detector doesn?t control charge pump 1 lock detector controls charge pump table 36. subaddress 2: pll counter 1 (lsb) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 00000000lsb = 0 00000001lsb = 1 00000010lsb = 2 11111100lsb = 252 11111101lsb = 253 11111110lsb = 254 11111111lsb = 255
TDA7513T software specifications 51/84 note: 1 swallow mode:f vco /f syn = lsb + msb + 32 table 37. subaddress 3: pll counter 2 (msb) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 00000000msb = 0 00000001msb = 256 00000010msb = 512 1 1 1 1 1 1 0 0 msb = 64768 1 1 1 1 1 1 0 1 msb = 65024 1 1 1 1 1 1 1 0 msb = 65280 1 1 1 1 1 1 1 1 msb = 65536 table 38. subaddress 4: reference counter 1 (lsb) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 00000000lsb = 0 00000001lsb = 1 00000010lsb = 2 11111100lsb = 252 11111101lsb = 253 11111110lsb = 254 11111111lsb = 255
software specifications TDA7513T 52/84 note: 1 f vco /f syn = lsb + msb + 1 table 39. subaddress 5: reference counter 2 (msb) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 00000000msb = 0 00000001msb = 256 00000010msb = 512 1 1 1 1 1 1 0 0 msb = 64768 1 1 1 1 1 1 0 1 msb = 65024 1 1 1 1 1 1 1 0 msb = 65280 1 1 1 1 1 1 1 1 msb = 65536 table 40. subaddress 6: fm antenna adjustment and fm mute depth msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 fm antenna adj (propo rtional to vtuning) 0 1 1 1 1 -30% 0 1 1 1 0 -28% 00001-2% 00000-0% 10000+0% 10001+2% --------- 11110+28% 11111+30% fm soft mute depth 0 0 25db 1 0 20db 0 1 16db 1 1 13.5db iss deviation detector disabling threshold relative to weak fild iss activation threshold (byte 31 bit 3-00 0 -100mv 1 +100mv
TDA7513T software specifications 53/84 table 41. subaddress 7: fm rf adjustment am prescaler and seek msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 fm rf adj (proportional to vtuning) 0 1 1 1 1 -30% 0 1 1 1 0 -28% --------- 00001-2% 00000-0% 10000+0% 10001+2% --------- 11110+28% 11111+30% am vco divider ratio 00 10 01 8 10 6 11 4 seek mode 0 seek off 1 seek on table 42. subaddress 8: if counter control 1 and am s.s. threshold msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 if counter control 000not valid 001not valid 010not valid 011 f = 6.25khz (fm) 1khz (am upc) 100 f = 12.5khz (fm) 2khz (am upc) 101 f = 25khz (fm) 4khz (am upc) 110 f = 50khz (fm) 8khz (am upc) 111 f = 100khz (fm) 16khz (am upc) 0 if counter disable/stand by
software specifications TDA7513T 54/84 1 if counter enable am stop station threshold 0000 0mv 0001 150mv --------- 1 1 1 0 2100mv 1 1 1 1 2250mv table 43. subaddress 9: if counter control 2 msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 fm antenna adj (propo rtional to vtuning) 00000f center = 10.60625mhz (fm) 449khz (am) 00001f center = 10.61250mhz (fm) 450khz (am) 01010f center = 10.66875mhz (fm) 459khz (am) 01011f center = 10.67500mhz (fm) 460khz (am) 01100f center = 10.68125mhz (fm) 461khz (am) 01101f center = 10.68750mhz (fm) 462khz (am) 01110f center = 10.69375mhz (fm) 463khz (am) 01111f center = 10.70000mhz (fm) 464khz (am) 10000f center = 10.70625mhz (fm) 465khz (am) 10001f center = 10.71250mhz (fm) 466khz (am) 11111f center = 10.80000mhz (fm) 480khz (am) 000 t sample = 20.48ms (fm) 128ms (am) 001 t sample = 10.24ms (fm) 64ms (am) 010 t sample = 5.12ms (fm) 32ms (am) 011 t sample = 2.568ms (fm) 16ms (am) 100 t sample = 1.28ms (fm) 8ms (am) 101 t sample = 640 s (fm) 4ms (am) 110 t sample = 320 s (fm) 2ms (am) 111 t sample = 160 s (fm) 1ms (am) table 42. subaddress 8: if counter control 1 and am s.s. threshold (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 55/84 note: 1 f osc /f tim = lsb + msb + 1 table 44. subaddress 10: if counter reference (lsb) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 00000000lsb = 0 00000001lsb = 1 00000010lsb = 2 11111100lsb = 252 11111101lsb = 253 11111110lsb = 254 11111111lsb = 255 table 45. subaddress 11: if counter reference (msb) and if counter mode select msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 000000msb = 0 000001msb = 256 000010msb = 512 1 1 1 1 0 1 msb = 15616 1 1 1 1 1 0 msb = 15872 1 1 1 1 1 1 msb = 16128 if counter mode 0 0 not valid 0 1 if counter fm mode (10.7khz) 1 0 if counter am mode (450khz) 0 0 not valid
software specifications TDA7513T 56/84 table 46. subaddress 12: am if amplifier gain ultra narrow band agc threshold, fm smeter and ac test msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 test fm fs soft mute enable (fm mode) [bit shared with am if amp gain] 0 fs soft mute disabled 1 fs soft mute enabled test ac mute (fm mode) [bit shared with am if amp gain] 0 test mode fm demod vout is disconnected from users 1 no test (std) am if amp gain (am mode) 0 0 0 not used 0 0 1 53.2db 0 1 0 55.8db 0 1 1 60.2db 1 0 0 58.3db 1 0 1 61.7db 1 1 0 62.8db 1 1 1 64.8db am unagc enable 1 enable am unagc 0 disable am unagc am ultra narrow band agc threshold 0000 74.4dbmv @sg 0001 78.8dbmv @sg 0010 80.0dbmv @sg 0011 80.7dbmv @sg 119.5dbmv @ if2ampout 0100 53.2dbmv @sg 0101 77.1dbmv @sg 0110 78.5dbmv @sg 0111 79.4dbmv @sg 1000 42.7dbmv @sg 1001 65.8dbmv @sg
TDA7513T software specifications 57/84 1010 77.6dbmv @sg 1011 78.5dbmv @sg 1100 32.6dbmv @sg 113.5dbmv @ if2ampout 1101 55.0dbmv @sg 1110 73.3dbmv @sg 1111 77.6dbmv @sg table 47. subaddress 13: demodulator fine adjust and noise blanker, mp qual test msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 fm audio demodulator current adjust 000000 a 000010.167 a ------ 011112.51 a 100000 a 000010.167 a 1----- 111112.51 a demodulator noise blanker am smeter extension 00 nb1&2 on (impvic&lontmas) old (10.7mhz) 0 1 nb1 on (impvicmas) old (10.7mhz) 10 nb2 on (implontmas0 new (450khz) 1 1 nb1&2 off new (450khz) multipath (iss) test mp test off mp test on (iss quality detector mp input from #acinl, iss mp filter+rect output to smeter test muxer if input 12 is selected table 46. subaddress 12: am if amplifier gain (continued) ultra narrow band agc threshold, fm smeter and ac test (continued) msb lsb function
software specifications TDA7513T 58/84 table 48. subaddress 14: quality detection adjacent channel msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 iss filter for wb 0 iss filter 30khz off 1 iss filter 30khz on iss adjacent channel filter configuration 0 ac highpass frequency 100khz 1 ac bandpass frequency 100khz ac gain 0 32db 1 38db iss adjacent channel threshold 0 0 0 ac wide band threshold 0.25v 0 0 1 ac wide band threshold 0.35v 0 1 0 ac wide band threshold 0.45v 1 1 1 ac wide band threshold 0.95v 0 0 ac narrow band threshold 0v 0 1 ac narrow band threshold 0.1v 1 0 ac narrow band threshold 0.2v 1 1 ac narrow band threshold 0.3v table 49. subaddress 15: quality detection multipath and smeter test msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 iss multipath control enabling 0 multipath control on 1 multipath control off iss multipath filter center frequncy 0 mp bandpass frequency 19khz 1 mp bandpass frequency 31khz iss multipath filter input selector (test mode) 0 smeter unfilt test off 1 smeter unfilt test on iss multipath threshold
TDA7513T software specifications 59/84 0 0 0.5v 0 1 0.75v 10 1v 1 1 1.25v iss mode 0 0 application mode 1 0 1 application mode 2 iss multipath control mode 0 mp control ac+ detection 1 mp control the ac and ac+ detection table 50. subaddress 16: quality detection deviation msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 iss deviation detector ime constant 000 charge current 34 a; discharge current 6 a 001 charge current 32 a; discharge current 8 a 010 charge current 30 a; discharge curren10 a 100 charge current 26 a; discharge current 14 a 111 charge current 20 a; discharge current 20 a iss deviation detector thresholds 00 dev threshold for iss narrow-wide 30khz 01 dev threshold for iss narrow-wide 45khz 10 dev threshold for iss narrow-wide 60khz 11 dev threshold for iss narrow-wide 75khz 0 0 dev threshold for iss filter off ratio 1 0 1 dev threshold for iss filter off ratio 1.3 table 49. subaddress 15: quality detection multipath and smeter test (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
software specifications TDA7513T 60/84 1 0 dev threshold for iss filter off ratio 1.4 1 1 dev threshold for iss filter off ratio 1.5 0 not used 1 aux set int80 table 51. subaddress 17: quality iss filter msb lsb function function function function d7 d6 d5 d4 d3 d2 d1 d0 iss automatic control fron ac detector 0 on (ac drives isstc) 1 off (ac has no influence on isstc) iss manual control 0 automatic control only 1 manual force filter on 0 manual force bw 120khz 1 manual force bw 80khz iss time constant current: discharge chrg mid chrg narrow 000 1 a74 a124 a 001 3 a72 a122 a 010 5 a70 a120 a 100 9 a66 a116 a 111 15 a60 a110 a iss filter center frequency 0 0 shift from 450khz -20khz 01 -10khz 10 0khz 11 10khz table 50. subaddress 16: quality detection deviation (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 61/84 table 52. subaddress 18: pll rest, 456khz vco adjust start, iss mp gain and sd out mode msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 pll test mode 000 001 010 011 100 101 110 111 automatic 456khz vco adjustment 0waiting 1start iss multipath filter gain 0 0 iss mp gain 2db 0 1 iss mp gain 13db 1 0 iss mp gain 16db sd pin configuration 0 0 iss (ifc and fm sm stop) 0 1 if counter out 1 0 fm smeter stop 1 1 logic 1 table 53. subaddress 19: 456khz vco adjustment (manual mode) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 0 enable ifc (i2cbus) off 1 enable ifc (i2cbus) on 0 enable 456khz vco adj procedure (i2cbus) off 1 enable 456khz vco adj procedure (i2cbus) on 00000 vco 456khz frequency adjust (i2cbus) minfreq
software specifications TDA7513T 62/84 00001 ----- 01111 10000 ----- 11110 11111 vco 456khz frequency adjust (i2cbus) maxfreq 0 manual adjustment procedure (i2cbus) 1 automatic adjustment procedure (state machine) table 54. subaddress 20: fm stop station and soft mute threshold msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 soft mute threshold on smeter 00000mv 0001100mv ----- 11101.4v 11111.5v fm stop station threshold on smeter 0000 400mv 0001 800mv ---- - 1110 3.2v 1111 3.6v table 55. subaddress 21: adjacent channel mute msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 adj channel mute gain 0 0 0 10.4db 0 0 1 11.4db table 53. subaddress 19: 456khz vco adjustment (manual mode) (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 63/84 0 1 0 12.4db 0 1 1 13.4db 1 0 0 14.4db 1 0 1 15.4db 1 1 0 16.4db 1 1 1 17.4db adj channel mute clamp 0000 500mv 0001 600mv ---- - 1000 1.3v ---- - 1110 1.9v 1111 2v adjacent channel (iss) test 0 ac test off 1 ac test on (iss qualitydetector ac input from #acinl, iss ac filter+rect out put to smeter test muxer if input 12 is selected) table 56. subaddress 22: fm smeter sider and am smeter time constant msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 fm smeter sider 000000v 000010.48v ------ 111101.45v 111111.5v am smeter filter tc (resistor value) 000 75k 100 50k 010 35k table 55. subaddress 21: adjacent channel mute (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
software specifications TDA7513T 64/84 110 24k 001 16k table 57. subaddress 23: ift adjust msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 ift1 adjust 00000pf 00010.55pf ----- 01117.7pf 11118.25pf ift2 adjust 0000 75pf 1000 50pf ---- - 0111 22.4pf 1111 24pf table 58. subaddress 24: xtal and fm if amp 2 gain msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 xtal adjust cload 000000pf 000010.625pf 000101.25pf 001002.5pf 010005pf 0 0 1 0 0 10pf 0 1 0 0 0 10.4pf xtal test) 0 xtal clock 1 clocksep (testing) table 56. subaddress 22: fm smeter sider and am smeter time constant msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 65/84 fm if amp2 gain 0 0 6db 0 1 8db 1 0 10db 1 1 not used table 59. subaddress 25: fm nagc key and am wagc msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 fm narrow acgc key if input 0 0 0 36db 0 0 1 42db 0 1 0 48db 0 1 1 54db 1 0 0 60db 1 0 1 66db 1 1 0 72db 1 1 1 keying off am wagc starting point @ mix1in 0 0 0 0 0 88db v ----- - 1 1 1 1 1 106db v table 60. subaddress 26: am nagc key and fm demod ref frequency test msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 110 test for fm demod ref freq divider (standard configuration) am wagc starting point @ mix2in 0 0 0 0 0 85db v ----- - 1 1 1 1 1 103db v table 58. subaddress 24: xtal and fm if amp 2 gain (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
software specifications TDA7513T 66/84 table 61. subaddress 27: iss tests msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 iss test multiplexer (1) 00000000no test 00000001test mp thresholds 00000010test acn thresholds 00000100test dw thresholds 00001000test d thresholds 00010000test acw thresholds 00100000test ac 01000000test mdsco 10000000test issout table 62. subaddress 28: iss tests msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 iss test multiplexer (2) 000000no test 000001test dev+ 000010test dev+ 000100test ref dev 001000test dem vout 010000test iss in 100000test issc ik enble iss test in 0 test in iss disable 1 test in iss enable iss test clock 0 test iss clock disable 1 test iss clock enable
TDA7513T software specifications 67/84 table 63. subaddress 29: tuner and smeter tests msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 smeter test multiplexer 000000test off 000001test amagc1w 000010test amagc1n 000011test amagc1un 000100test fm smute threshold 010101test fmsmstop 000110test amif2amp 000111test amsddac 001000test fmkagc 001001test fmacmdisable 001010test fmdemodadjon 001011test fmdemodadjonmute 001100test fmacmuterct 001101test fsissonthreshold 001110test fsisson 001111test issinput 0 smeter out acd enable 1 test smete in 0 smeter filter force enable 1 test tmode1out (byte 27/28) table 64. subaddress 30: adjacent channel mute msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 adjacent channel mute threshold 00000mv 0 0 0 1 28.7mv ----- 1 0 0 0 229.3mv ----- 1 1 1 0 401.3mv 1 1 1 1 430mv adjacent channel mute filter configuration
software specifications TDA7513T 68/84 0 adjchannel mute highpass filter 1 1 adjchannel mute bandpass filter 1 - - 0 adjchannel mute highpass filter 2 1 adjchannel mute bandpass filter 2 adjacent channel mute disable @ low fs 0 0 threshold 1v 0 1 threshold 1.33v 1 0 threshold 1.66v 1 1 threshold 2v table 65. subaddress 31: adjacent channel and multipath gain, weak field iss threshold msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 weak field iss activation threshold 0000-450mv 0 0 0 1 -385.7mv ----- 0111-0mv 1000+0mv 1 0 0 1 64.28mv ----- 1 1 1 0 385.7mv 1 1 1 1 450mv tuner quality multipath gain 0 0 0 (off) db 01 -4db 1 0 0db 1 1 4db tuner quality adjacent channel gain 00 (off) 01 -4db 1 0 0db 1 1 4db table 64. subaddress 30: adjacent channel mute (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 69/84 4.3 stereodecoder and audioprocessor section table 66. address organisation msb lsb function subaddr. d7 d6 d5 d4 d3 d2 d1 d0 0 spkr coupl in gain source selector source select or, in gain, peaker coupling 1 volume steps volume 2 not used treble center freq treble steps treble 3 bass dc mode bass q factor bass steps bass 4 volume steps speaker attenuator left front 5 volume steps speaker attenuator right front 6 volume steps speaker attenuator left read 7 volume steps speaker attenuator right rear 8nb time bass center frequency not used soft mute time i 2 c soft mute off soft mute, soft mute time, bass, noise blanker time 9 deemp h. pilot thr. nb peak dis force mono auto zero status std in gain std mute disable stereo decoder mute, st dec in-gain, mono, nb peak disch curr., pilot thresh, deemph. 10 overdev. adj nb on noise contr.thresh. low threshold noise blanker 11 mpath. infl. vhcl vhch max high out high cut on high cut, multipath influence 12 mpath. infl. quality del. coeff. nb field strength gain nb field strength threshold not used fieldstrength control 13 mpath. det. reflect. gain mpath. charge mpath.i nt. infl mpath.det gain noise rect.disch, r noise rectifier disch. resistor, multipath del. bandpass gain, multipath internal influence, reflection gain 14 roll-off compe ns. level gain roll-off compensation roll-off compensation, level gain 15 ap test on 400k on test signal selection itest sc off sid test on test byte
software specifications TDA7513T 70/84 4.4 subaddress organization (stereodecoder and audioprocessor section) 16 am high cut control corner frequency quality noise gain mpath test amhcc, quality noise gain, test 17 mid qfactor mid center frequency mid steps mid 18 not used vsbl stereo blend table 66. address organisation (continued) msb lsb function subaddr. d7 d6 d5 d4 d3 d2 d1 d0 table 67. stereodecoder and audioprocessor section subaddress msb lsb d7 d6 d5 d4 d3 d2 d1 d0 testcon azhold autoincr subaddress table 68. stereodecoder and audioprocessor section read mode msb lsb s7 s6 s5 s4 s3 s2 s1 s0 stereo smon table 69. stereodecoder and audioprocessor section address msb lsb s7 s6 s5 s4 s3 s2 s1 s0 1000110r/w table 70. subaddress 0: source sele ctor, in-gain, sspeaker coupling msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 source selector 0 0 0 quasi-differential input 1 0 0 1 quasi-differential input 2 0 1 0 not used (mute) 0 1 1 turner input (am mode) 1 0 0 turner input (fm mode) 1 0 1 not used (mute)
TDA7513T software specifications 71/84 note: no other combin ations are allowed 1 1 0 not used (mute) 1 1 1 not used (mute) in-gain 0 0 0 0 0db 0 0 0 1 1db ---- - 1 1 1 0 14db 1 1 1 1 15db speaker coupling 0 ac (external) 1 dc (internal) table 71. subaddress 1,4,5,6,7: volume spkr atten. lf, rf, lr, rr msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 volume steps 1000111115db --------- 100000011db 000000000db 00000001-1db --------- 00001111-15db 00010000-15db --------- 01001110-78db 01001111-79db x1 1xxxxxmute table 70. subaddress 0: source sele ctor, in-gain, ss peaker coupling msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
software specifications TDA7513T 72/84 table 72. subaddress 2: treble msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 treble filter steps 0 0 0 0 0 -15db 0 0 0 0 1 -14db ------ 0 1 1 1 0 -1db 0 1 1 1 1 0db 1 1 1 1 1 0db 1 1 1 1 0 1db ------ 1 0 0 0 1 -14db 1 0 0 0 0 -15db treble filter center frequency 0 0 10.0khz 0 1 12.5khz 1 0 15khz 1 1 17.5khz table 73. subaddress 3: bass msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 bass filter steps 0 0 0 0 0 -15db 0 0 0 0 1 -14db ------ 0 1 1 1 0 -1db 0 1 1 1 1 0db 1 1 1 1 1 0db 1 1 1 1 0 1db ------ 1 0 0 0 1 -14db 1 0 0 0 0 -15db bass filter q-factor 0 0 1.00
TDA7513T software specifications 73/84 note: no other combin ations are allowed 0 1 1.25 1 0 1.50 11 2 (makes cent. freq. = 150hz when programmed to 100hz) bass filter dc mode 0off 1on table 74. subaddress 4: speaker attenuator left front msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 volume steps 1000111115db --------- 100000011db 000000000db 00000001-1db --------- 00001111-15db 00010000-15db --------- 01001110-78db 01001111-79db x1 1xxxxxmute table 73. subaddress 3: bass (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 table 75. subaddress 8: soft mute, bass, noise blanker time msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 soft mute activation control 0 i 2 c bus audio processor mute on (independently of pin audio mute)
software specifications TDA7513T 74/84 1 i 2 c bus audio processor mute off (pin audio mute controls muting: pin=0 mute on, pin=1 mute off) 0 0 soft mute transition time = 0.48ms 0 1 soft mute transition time = 0.96ms 1 0 soft mute transition time = 20.2ms 1 1 soft mute transition time = 40.4ms base filter center frequency 00 60hz 01 70hz 10 80hz 1 1 100hz (if bass dc mode off) 1 1 150hz (if bass dc mode on) noise blanker time 00 38 s 01 25.5 s 10 32 s 11 22 s table 76. subaddress 9: stereo decoder mute stereo decoder in-gain, mono, nb peak disch, curr ., pilot thresh, deemph msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 stereo decoder mute 0 high-ohmic mute, pilot hold, multipath time constant short enabled (mute set by pin rds mute low) 1 high-ohmic mute, pilot hold, multipath time constant short disabled (regardless of pin rds mute) stereo decoder in-gain 11 0db 1 0 2.5db 01 4db 0 0 5.5db table 75. subaddress 8: soft mute, bass, noise blanker time msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 75/84 auto zero status 0 disabled 1 enabled; trans. 0 1 performs autozero sequence force mono 0on 1 off (automatic mono/stereo switch) noise peak discharge current 0low 1high pilot threshold 0low 1high demphasis 050 s 175 s table 77. subaddress 10: noise blanker msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 low threshold 0 0 0 65mv 0 0 1 60mv ---- 1 1 1 30mv noise controlled threshold 0 0 320mv 0 1 260mv 1 0 200mv 1 1 140mv noise blanker operation table 76. subaddress 9: stereo decoder mute stereo decoder in-gain, mono, nb peak disch, curr ., pilot thresh, deemph msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
software specifications TDA7513T 76/84 0off 1on overdeviation adjustment 0 0 2.8v 0 1 2.0v 1 0 1.2v 11 off table 78. subaddress 11: high cut, multipath influence msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 high cut operation 0off 1on max high cut 0 0 2db 0 1 5db 1 0 7db 1 1 10db vhch 0 0 42% ref 5v 0 1 50% ref 5v 1 0 58% ref 5v 1 1 66% ref 5v vhcl 0 0 16.7% vhch 0 1 22.2% vhch 1 0 27.8% vhch 1 1 33.3% vhch strong multipath in fluence on peak 18k 0off 1 on (18k discharge if v mpout <2.5v) table 77. subaddress 10: noise blanker (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 77/84 table 79. subaddress 12: fieldstrength control msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 noise blanker fieldstrength threshold 00min 10 01 11max noise blanker fieldstrength gain 0 0 2.3v 1 0 1.8v 0 1 1.3v 11 off quality detector coefficient a 0 0 a = 0.7 0 1 a = 0.85 1 0 a = 1.0 1 1 a = 1.15 multipath influence on peak discharge 0off 1on table 80. subaddress 13: noise rectifier discharge resistor bandpass gain, internal influence, change current, reflection gain detectors. msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 noise rectifier discharge resistor 0 0 r = infinite 0 1 r = 56k 1 0 r = 33k 1 1 r = 18k multipath detector bandpass gain 0 0 6db 0 1 12db
software specifications TDA7513T 78/84 1 0 16db 1 1 18db multipath detector internal influence 0on 1off multipath detector change current 00.5 a 11 a multipath detector reflection gain 0 0 gain = 7.6db 0 1 gain = 4.6db 10 gain = 0db 1 1 disabled table 81. subaddress 14: roll-off compensation, level gain msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 roll-off compensation 0 0 0 0 not allowed 0 0 0 1 7.2% 0 0 1 0 9.4% - --- 0 1 0 0 13.7% - --- 0 1 1 1 20.2% 1 0 0 0 not allowed 1 0 0 1 19.6% 1 0 1 0 21.5% - --- 1 1 0 0 25.3% - --- 1 1 1 1 31.0% table 80. subaddress 13: noise rectifier discharge resistor (continued) bandpass gain, internal influence, change current, reflection gain detectors. (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
TDA7513T software specifications 79/84 level gain 0 0 0 0 0db 0 0 0 1 0.66db 0 0 1 0 1.33db ---- - 1 1 1 1 10db table 82. subaddress 15: test byte msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 stereo decoder test signals enabling 0 test signal disabled 1 test signal enabled (if s6=1) on acinr stereo decoder test signals selection 0 0 0 0 vhcch 0 0 0 1 levelintern 0010 pilot 0 0 1 1 vcocon (vco tuning voltage) 0 1 0 0 pil_vth 0101 holdn 0110 nb_vth 0111 f228 1 0 0 0 vhccl 1 0 0 1 vsbl 1 0 1 0 state machine enable ifc 1 0 1 1 state machine set456 1 1 0 0 peak 1 1 0 1 state machine check 1110 ref 5v 1 1 1 1 sbpwm test sc filter 0 fast test enabled (2-phase 200khz clock) table 81. subaddress 14: roll-off compensation, level gain (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
software specifications TDA7513T 80/84 1 test disabled (4-phase 200khz clock) 400 khz vco off 0off 1on audio processor test enabling 0 test disabled 1 test enabled (if s6=1) table 83. subaddress 16: multipath test, amhcc msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 multipath test enable 0 multipath detector test input disabled 1 multipath detector test input enabled quality detector noise gain 0 0 15db 0 1 12db 1 0 9db 1 1 6db am high-cut control corner frequency 00000 00001 ----- 11110 11111 table 84. subaddress 17: mid msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 mid filter steps 0 0 0 0 0 -15db 0 0 0 0 1 -14db ----- - 01110 -1db table 82. subaddress 15: test byte (continued) msb lsb function
TDA7513T software specifications 81/84 0 1 1 1 1 0db 1 1 1 1 1 0db 1 1 1 1 0 1db - ----- - 1 0 0 0 1 14db 1 0 0 0 0 15db mid filter center frequency 0 0 500hz 01 1.0khz 10 1.5khz 11 2.0khz mid filter q factor 0 1.0 1 2.0 table 85. subaddress 18: stereo blend msb lsb function d7 d6 d5 d4 d3 d2 d1 d0 vsbl 0 0 0 vsbl at 29% ref 5v 0 0 1 vsbl at 33% ref 5v 0 1 0 vsbl at 38% ref 5v 0 1 1 vsbl at 42% ref 5v 1 0 0 vsbl at 46% ref 5v 1 0 1 vsbl at 29% ref 5v 1 1 0 vsbl at 50% ref 5v - 1 1 0 vsbl at 54% ref 5v 1 1 1 vsbl at 58% ref 5v table 84. subaddress 17: mid (continued) msb lsb function d7 d6 d5 d4 d3 d2 d1 d0
package information TDA7513T 82/84 5 package information in order to meet environmental requirements, st offers these devices in ecopack? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com. figure 21. lqfp80 mechanical data & package dimensions outline and mechanical data dim. mm inch min. typ. max. min. typ. max. a 1.600 0.0630 a1 0.050 0.150 0.0020 0.0059 a2 1.350 1.400 1.450 0.0531 0.0551 0.0571 b 0.220 0.320 0.380 0.0087 0.0126 0.0150 c 0.090 0.200 0.0035 0.0079 d 15.800 16.000 16.200 0.6220 0.6299 0.6378 d1 13.800 14.000 14.200 0.5433 0.5512 0.5591 d3 12.350 0.4862 e 15.800 16.000 16.200 0.6220 0.6299 0.6378 e1 13.800 14.000 14.200 0.5433 0.5512 0.5591 e3 12.350 0.4862 e 0.650 0.0256 l 0.450 0.600 0.750 0.0177 0.0236 0.0295 l1 1.000 0.0394 k 0? (min.); 3.5? (typ,); 7? (max.) ccc 0.100 0.0039 lqfp80 (14x14x1.40mm) l ow profile q uad f lat p ackage 0062342 d
TDA7513T revision history 83/84 6 revision history table 86. document revision history date revision changes 01-jun-2004 1 initial release. 18-apr-2007 2 package changed, text and layour modifications.
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