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| For Audio Equipment MN662710RA Signal Processing LSI for CD Players Overview The MN662710RA is a CD signal processing LSI that, on a single chip, combines an optics servo for the CD player (focus, tracking, and traverse servos), digital signal processing (EFM demodulation and error correction), digital servo processing for the spindle motor, digital filter, and D/A converter, so thus covers all signal processing functions from the head's RF amplifier onward. The MN662710RA is also usable as a CD signal processing LSI for double-speed CD-ROM playback. Do not, however, use the audio equipment D/A converter during double-speed playback. Digital audio interface (EIAJ format) Audio data serial interface (Spindle motor servo) CLV digital servo (Audio circuits) Operation guaranteed only for normal playback speed Digital filter using 8-fold oversampling Built-in D/A converter (1-bit D/A converter) Built-in differential operational amplifier (PWM output) (Other) Built-in playback pitch control function (normal speed only) (13%) Operating voltage 4.5 to 5.5V Features (Optics servo) Focus, tracking, and traverse servos Automatic adjustment functions for FO/TR gain, FO/ TR offset, and FO/TR balance Built-in D/A converter for drive voltage output Built-in dropout countermeasures Anti-shock functions Built-in track cross counter Support for both linear motor and screw-based traverse mechanisms Support for 3- and 1-beam systems (Digital signal processing) Playback switchable between double-speed and normal speed Built-in DSL and PLL Frame synchronization detection, holding, and insertion Subcode data processing Q data CRC check Built-in Q data register CIRC error detection and correction C1 decoder: duplex error correction C2 decoder: triplex error correction Built-in 16-K bits of RAM for de-interleaving Audio data interpolation Average, hold of previous values Soft muting Digital attenuation (256 levels) Software attenuation (256 levels) Audio data peak level detection function Auto cue detection function Applications CD players MN662710RA Block Diagram For Audio Equipment 70 RST2 8 TIMES OVER SAMPLING DIGITAL FILTER DIGITAL DEEMPHASIS PWM (R) 51 AVSS2 50 AVDD2 75 - + OUTR 1 BIT DAC LOGICS 73 PWM (L) - + OUTL DIGITAL AUDIO INTERFACE CLVS CRC BLKCK CLDCK SBCK SUBC DEMPH RESY 66 67 13 62 56 55 68 69 SUBCODE BUFFER CIRC ERROR CORRECTION 16K SRAM DEINTERLEAVE 74 AVSS1 72 AVDD1 65 FLAG 64 IPFLAG 6 EFM DEMODULATION SYNC INTERPOLATION SUBCODE DEMODULATION 80 SSEL 14 SQCK 15 SUBQ PCK EFM PLLF DSLF IREF DRF ARF RSEL PSEL 53 52 48 47 45 46 44 76 78 TX CLV SERVO 24 23 ECM PC VCO 9 MLD 7 MCLK 8 MDATA 49 VCOF 61 BYTCK 19 SMCK 63 FCLK 20 PMCK 77 CSEL 79 MSEL 59 X2 58 X1 17 STAT 2 LRCK 3 SRDATA 1 BCLK 16 DMUTE 21 TRV 26 KICK 29 V 25 REF ECS 22 TVD 27 TRD 28 FOD 31 TBAL 30 FBAL 41 TES 12 TLOCK 11 FLOCK 42 PLAY 40 LDON 43 WVEL 10 SENSE INTERPOLATION SOFT MUTING DIGITAL ATTENUATION PEAK DETECT AUTO CUE DSL*PLL TIMING GENERATOR PITCH CONTROL VCO MICROCOMPUTER INTERFACE SERVO CPU A/D CONVERTER 60 57 4 5 18 71 32 33 34 INPUT PORT 37 35 39 SERVO TIMING GENERATOR 38 36 OFT TE VDET RFENV TRCRS RFDET VDD VSS DVDD1 DVSS1 RST TEST FE BDO OUTPUT PORT D/A CONVERTER For Audio Equipment Package Dimensions (Unit: mm) QFS080-P-1414 MN662710RA 16.20.2 14.00.2 60 61 41 40 0.825 14.00.2 80 21 1 0.65 20 16.20.2 1.10.1 2.00.2 0.3 -0.05 2.10.3 +0.10 0.15 SEATING PLANE 0.10.1 0.15 0.550.1 0 to 10 +0.10 -0.05 |
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