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1. general description the sa606 is a low-voltage high performance monolithic fm if system incorporating a mixer/oscillator, two limiting intermediate fr equency amplifiers, q uadrature detector, logarithmic received signal strength indicator (rssi), voltage regulator and audio and rssi op amps. the sa606 is available in so20 and ssop20 packages. the sa606 was designed for portable communi cation applications and will function down to 2.7 v. the rf section is similar to the famous sa605. the audio and rssi outputs have amplifiers with access to the feedback pa th. this enables the designer to adjust the output levels or add filtering. 2. features and benefits ? low power consumption: 3.5 ma typical at 3 v ? mixer input to >150 mhz ? mixer conversion power gain of 17 db at 45 mhz ? xtal oscillator effective to 150 mhz (lc oscillator or external oscillator can be used at higher frequencies) ? 102 db of if amp/limiter gain ? 2 mhz if amp/limiter small signal bandwidth ? temperature compensated logarithmi c rssi with a 90 db dynamic range ? low external component count; suitab le for crystal/ceramic/lc filters ? excellent sensitivity: 0.31 ? v into 50 ? matching network for 12 db sinad (signal-to-noise-and-distortion ratio) for 1 khz tone with rf at 45 mhz and if at 455 khz ? sa606 meets cellular radio specifications ? audio output internal op amp ? rssi output internal op amp ? internal op amps wit h rail-to-rail outputs ? esd protection exceeds 2000 v hbm per jesd22-a114 and 1000 v cdm per jesd22-c101 ? latch-up testing is done to jedec standard jesd78 class ii, level b 3. applications ? portable cellular radio fm if ? cordless phones ? wireless systems ? rf level meter sa606 low-voltage high performance mixer fm if system rev. 6 ? 8 november 2013 product data sheet
sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 2 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system ? spectrum analyzer ? instrumentation ? fsk and ask data receivers ? log amps ? portable high performance communication receiver ? single conversion vhf receivers 4. ordering information 4.1 ordering options table 1. ordering information t amb = ? 40 ? c to +85 ? c type number topside mark package name description version sa606d/01 sa606d so20 plastic small outline package; 20 leads; body width 7.5 mm sot163-1 SA606DK/01 SA606DK ssop20 plastic shrink small outline package; 20 leads; body width 4.4 mm sot266-1 SA606DK/02 SA606DK ssop20 plastic shrink small outline package; 20 leads; body width 4.4 mm sot266-1 SA606DK/03 SA606DK ssop20 plastic shrink small outline package; 20 leads; body width 4.4 mm sot266-1 table 2. ordering options type number orderable part number package packing method minimum order quantity temperature sa606d/01 sa606d/01,112 so20 standard marking *ic?s tube - dsc bulk pack 1520 t amb = ? 40 ? cto+85 ? c sa606d/01,118 so20 reel 13? q1/t1 *standard mark smd 2000 t amb = ? 40 ? cto+85 ? c SA606DK/01 SA606DK/01,112 ssop20 standard marking *ic?s tube - dsc bulk pack 1350 t amb = ? 40 ? cto+85 ? c SA606DK/01,118 ssop20 reel 13? q1/t1 *standard mark smd 2500 t amb = ? 40 ? cto+85 ? c SA606DK/02 SA606DK/02,118 s sop20 reel 13? q1/t1 *standard mark smd 2500 t amb = ? 40 ? cto+85 ? c SA606DK/03 SA606DK/03,118 s sop20 reel 13? q1/t1 *standard mark smd 2500 t amb = ? 40 ? cto+85 ? c sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 3 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 5. block diagram fig 1. block diagram of sa606 002aag090 mixer if amp limiter osc rssi quad audio vreg eb 20 19 18 17 16 15 14 13 12 11 12345678910 rf_in rf_in_decoupl osc_out osc_in rssi_out v cc audio_feedback audio_out rssi_feedback quadrature_in mixer_out if_amp_decoupl if_amp_in if_amp_decoupl if_amp_out gnd limiter_in limiter_decoupl limiter_decoupl limiter_out sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 4 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 6. pinning information 6.1 pinning fig 2. pin configuration for so20 fig 3. pin configuration for ssop20 sa606d/01 002aag091 1 2 3 4 5 6 7 8 9 10 12 11 14 13 16 15 18 17 20 19 rf_in rf_in_decoupl osc_out osc_in rssi_out v cc audio_feedback audio_out rssi_feedback quadrature_in mixer_out if_amp_decoupl if_amp_in if_amp_decoupl if_amp_out gnd limiter_in limiter_decoupl limiter_decoupl limiter_out SA606DK/01 SA606DK/02 SA606DK/03 rf_in mixer_out rf_in_decoupl if_amp_decoupl osc_out if_amp_in osc_in if_amp_decoupl rssi_out if_amp_out v cc gnd a udio_feedback limiter_in audio_out limiter_decoupl rssi_feedback limiter_decoupl quadrature_in limiter_out 002aag092 1 2 3 4 5 6 7 8 9 10 12 11 14 13 16 15 18 17 20 19 sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 5 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 6.2 pin description table 3. pin description symbol pin description rf_in 1 rf input rf_in_decoupl 2 rf input decoupling pin osc_out 3 oscillator output osc_in 4 oscillator input rssi_out 5 rssi output v cc 6 positive supply voltage audio_feedback 7 audio amplifier negative feedback terminal audio_out 8 audio amplifier output rssi_feedback 9 rssi amplifier negative feedback terminal quadrature_in 10 quadrature detector input terminal limiter_out 11 limiter amplifier output limiter_decoupl 12 limiter amplifier decoupling pin limiter_decoupl 13 limiter amplifier decoupling pin limiter_in 14 limiter amplifier input gnd 15 ground; negative supply if_amp_out 16 if amplifier output if_amp_decoupl 17 if amplifier decoupling pin if_amp_in 18 if amplifier input if_amp_decoupl 19 if amplifier decoupling pin mixer_out 20 mixer output sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 6 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 7. functional description the sa606 is an if signal processing system suitable for second if systems with input frequency as high as 150 mhz. the bandwidth of the if amplifier and limiter is at least 2 mhz with 90 db of gain. the gain/bandwidth distribution is optimized for 455 khz, 1.5 k ? source applications. the overall system is well-suited to battery operation as well as high performance and high quality products of all types. the input stage is a gilbert cell mixer with osc illator. typical mixer ch aracteristics include a noise figure of 6.2 db, conversion gain of 17 db, and input third-order intercept of ? 9 dbm. the oscillator will operate in excess of 200 mhz in l/c tank configurations. hartley or colpitts circuits can be used up to 100 mhz for crystal configurations. butler oscillators are recommen ded for crystal configurations up to 150 mhz. the output impedance of the mixer is a 1.5 k ? resistor permitting direct connection to a 455 khz ceramic filter. the input resistance of the limiting if amplifiers is also 1.5 k ? . with most 455 khz ceramic filters and many crystal filters, no impedance matching network is necessary. the if amplifier has 43 db of gain and 5.5 mhz bandwidth. the if limiter has 60 db of gain and 4.5 mhz bandwidth. to achieve optimum linearity of the log signa l strength indicator, there must be a 12 dbv insertion loss between the first and second if stages. if the if filter or interstage network does not cause 12 dbv insertion loss, a fixe d or variable resistor or an l pad for simultaneous loss and impedance matching c an be added between the first if output (if_amp_out) and the inters tage network. the overall gain will then be 90 db with 2 mhz bandwidth. the signal from the second limiting amplifier goes to a gilbert cell quadrature detector. one port of the gilbert cell is internally driv en by the if. the other output of the if is ac-coupled to a tuned quadrature netw ork. this signal, which now has a 90 ? phase relationship to the internal signal, drives the ot her port of th e multiplier cell. the demodulated output of the quadrature drives an internal op amp. this op amp can be configured as a unity gain buffer, or for simultaneous gain, filtering, and second-order temperature compensation if needed. it can drive an ac load as low as 5 k ? with a rail-to-rail output. a log signal strength indicator completes the circuitry. the output range is greater than 90 db and is temperature compensated. this log signal strength indicator exceeds the criteria for amps or tacs cellular telephone. this signal drives an internal op amp. the op amp is capable of rail-to-rail output. it can be used for gain, filtering, or second-order temperature compensation of the rssi, if needed. remark: dbv = 20log v o /v i . sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 7 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 8. limiting values 9. thermal characteristics 10. static characteristics table 4. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit v cc supply voltage - 7 v t stg storage temperature ? 65 +150 ?c t amb ambient temperature operating ? 40 +85 ?c table 5. thermal characteristics symbol parameter conditions max unit z th(j-a) transient thermal impedance from junction to ambient sa606d/01 (so20) 90 k/w SA606DK/01, SA606DK/02, SA606DK/03 (ssop20) 117 k/w table 6. static characteristics v cc =3v; t amb =25 ? c; unless specified otherwise. symbol parameter conditions min typ max unit v cc supply voltage 2.7 - 7.0 v i cc supply current - 3.5 4.2 ma sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 8 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 11. dynamic characteristics table 7. dynamic characteristics t amb =25 ? c; v cc = 3 v; unless specified otherwise. rf frequency = 45 mhz + 14.5 dbv rf input step-up. if frequency = 455 khz; r17 = 2.4 k ? and r18 = 3.3 k ? . rf level = ? 45 dbm; fm modulation = 1 khz with ? 8 khz peak deviation. audio output with de-em phasis filter and c-message weighted filter. test circuit figure 19 . the parameters listed below are tested using automatic test equipment to assure consis tent electrical characteristics. the limits do not represent the ultimate performance limits of the devic e. use of an optimized rf layout will improve many of the listed parameters. symbol parameter conditions min typ max unit mixer/oscillator section (external lo = 220 mv rms value) f i input frequency - 150 - mhz f osc oscillator frequency - 150 - mhz nf noise figure at 45 mhz - 6.2 - db ip3 i input third-order intercept point 50 ? source; f1=45.0mhz;f2=45.06mhz; input rf level = ? 52 dbm - ? 9- db g p(conv) conversion power gain matched 14.5 dbv step-up 13.5 17 19.5 db 50 ? source - 2.5 - db r i(rf) rf input resistance single-ended input - 8 - k ? c i(rf) rf input capacitance - 3.0 4.0 pf r o(mix) mixer output resistance mixer_out pin 1.25 1.5 - k ? if section g amp(if) if amplifier gain 50 ? source - 44 - db g lim limiter gain 50 ? source - 58 - db p i(if) if input power for ? 3 db input limiting sensitivity; r17=2.4k ? ; r18=3.3k ? ( figure 19 ); test at if_amp_in pin - ? 109 - dbm ? am am rejection 80 % am 1 khz - 45 - db v o(aud) audio output voltage gain of two (2 k ? ac load) 70 120 160 mv sinad signal-to-noise-and-distortion ratio if level ? 110 dbm - 17 - db thd total harmonic distortion ? 35 ? 50 - db s/n signal-to-noise ratio no modulation for noise - 62 - db v o(rssi) rssi output voltage rf; r9 = 2 k ? rf level = ? 118 dbm - 0.3 0.8 v sa606d/01, SA606DK/01; rf level = ? 68 dbm; 0.7 1.1 1.8 v SA606DK/02; rf level = ? 68 dbm 0.95 - 1.05 v SA606DK/03; rf level = ? 68 dbm 1.06 - 1.15 v rf level = ? 23 dbm 1.2 1.8 2.5 v ? rssi(range) rssi range - 90 - db ?? rssi rssi variation - ? 1.5 - db z i(if) if input impedance if_amp_in pin 1.3 1.5 - k ? z o(if) if output impedance if_amp_out pin - 0.3 - k ? z i(lim) limiter input impedance li miter_in pin 1.3 1.5 - k ? sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 9 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 12. performance curves z o(lim) limiter output impedance limiter_out pin - 0.3 - k ? v o(rms) rms output voltage limiter_out pin - 130 - mv rf/if section (internal lo) v o(aud)rms rms audio output voltage v cc = 3 v; rf level = ? 27 dbm - 120 - mv v o(rssi) rssi output voltage system; v cc =3v; rf level = ? 27 dbm -2.2-v sinad signal-to-noise-and-distortion ratio system; rf level = ? 117 dbm - 12 - db table 7. dynamic characteristics ?continued t amb =25 ? c; v cc = 3 v; unless specified otherwise. rf frequency = 45 mhz + 14.5 dbv rf input step-up. if frequency = 455 khz; r17 = 2.4 k ? and r18 = 3.3 k ? . rf level = ? 45 dbm; fm modulation = 1 khz with ? 8 khz peak deviation. audio output with de-em phasis filter and c-message weighted filter. test circuit figure 19 . the parameters listed below are tested using automatic test equipment to assure consis tent electrical characteristics. the limits do not represent the ultimate performance limits of the devic e. use of an optimized rf layout will improve many of the listed parameters. symbol parameter conditions min typ max unit fig 4. supply current versus ambient temperature fig 5. third order intercept point versus ambient temperature and supply voltage t amb (c) ?55 125 5 002aaf410 4 6 i cc (ma) 2 65 105 85 45 25 ?15 ?35 v cc = 7.0 v 5.0 v 3.0 v 2.7 v 3 5 t amb (c) 40 90 60 20 002aaf411 11.0 9.0 8.0 ip3 i (dbm) 14.0 02 04 0 8 0 10.0 12.0 13.0 v cc = 2.7 v 3.0 v 7.0 v sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 10 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system fig 6. mixer noise figure versus ambient temperature and supply voltage fig 7. conversion gain versus ambient temperature and supply voltage t amb (c) ?40 90 60 ?20 002aaf412 6.5 7.5 8.0 nf (db) 5.0 02 04 0 8 0 7.0 6.0 5.5 v cc = 2.7 v 3.0 v 7.0 v t amb (c) ?40 90 60 ?20 002aaf413 17.0 16.5 17.5 18.0 g p(conv) (db) 16.0 02 04 0 8 0 v cc = 2.7 v 3.0 v 7.0 v sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 11 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system rf = 45 mhz; if = 455 khz. (1) fund product. (2) third order product. (3) 50 ? input. fig 8. mixer third order intercept and compression rf (3) input level (dbm) ?66 34 14 ?26 ?6 ?46 002aaf414 ?40 ?20 ?60 0 20 if output power (dbm) ?80 (1) (2) sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 12 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system v cc = 3 v; rf = 45 mhz; deviation = ? 8khz; v o(aud)rms = 104.9 mv. fig 9. relative level of audi o, am rejection, thd+n and noise versus rf level (t amb = ? 40 ? c) v cc = 3 v; rf = 45 mhz; deviation = ? 8khz; v o(aud)rms = 117.6 mv. fig 10. relative level of au dio, am rejection, thd+n and noise versus rf level (t amb =+25 ?c) 002aaf415 ?55 ?45 ?35 ?25 ?5 rf level (dbm) ?125 ?25 ?45 ?85 ?65 ?105 audio noise thd+n am rejection ?15 5 relative level (db) ?65 002aaf416 ?15 5 ?65 ?55 ?45 ?35 ?25 ?5 rf level (dbm) ?125 ?25 ?45 ?85 ?65 ?105 audio noise thd+n am rejection relative level (db) sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 13 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system v cc = 3 v; rf = 45 mhz; deviation = ? 8khz; v o(aud)rms = 127 mv. fig 11. relative level of au dio, am rejection, thd+n and noise versus rf level (t amb =+85 ?c) v cc = 3 v; rf = 45 mhz; rf level = ? 45 dbm; deviation = ? 8khz; v o(aud)rms = +117.6 mv. fig 12. relative audi o level, distortion, am re jection and noise versus ambient temperature 002aaf417 ?15 5 ?65 ?55 ?45 ?35 ?25 ?5 rf level (dbm) ?125 ?25 ?45 ?85 ?65 ?105 audio noise thd+n am rejection relative level (db) t amb (c) ?55 125 65 5 ?35 002aaf418 ?15 5 ?65 ?15 20 45 85 105 ?55 ?45 ?35 ?25 ?5 audio noise distortion am rejection relative level (db) sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 14 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 455 khz if at 3 v. fig 13. rssi output voltage versus if level (sa606d/01; SA606DK/01) v cc =3v fig 14. rssi output voltage versus rf level (sa606d/01; SA606DK/01) if level (dbm) ?95 5 ?15 ?55 ?35 ?75 002aaf419 0.8 1.6 2.4 v o(rssi) (v) 0 0.4 1.2 2.0 t amb = +85 c room ?40 c rf level (dbm) ?125 ?25 ?45 ?85 ?65 ?105 002aaf420 0.9 1.5 2.1 v o(rssi) (v) 0.3 0.6 1.2 1.8 t amb = +85 c +27 c ?40 c sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 15 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 13. application information fig 15. rms audio output voltage versus ambient temperature t amb (c) ?55 125 5 002aaf421 65 105 85 45 25 ?15 ?35 v cc = 7.0 v 5.0 v 3.0 v 2.7 v 100 200 300 v o(aud)rms (mv) 0 the layout is very critical in the performanc e of the receiver. we highly recommend our demo board layout. all of the inductors, the quad tank, and their shield must be grounded. a 10 ? f to 15 ? f or higher value tantalum capacitor on the supply line is es sential. a low frequency esr screening test on this capacitor will ensure consistent good sensitivity in production. a 0.1 ? f bypass capacitor on the supply pin, and grounded near the 44.545 mhz oscill ator improves sensitivity by 2 db to 3 db. fig 16. sa606 45 mhz application circuit (SA606DK demo board) 002aag098 mixer if amp limiter osc rssi quad audio vreg 20 19 18 17 16 15 14 13 12 11 1234567 8910 c23 c21 fl1 c18 c17 fl2 r17 2.4 k r18 3.3 k c26 c15 c9 c10 v cc rssi_out r11 10 k c12 r10 8.2 k audio_out c27 r19 11 k ift1 c19 390 pf c14 c7 l2 x1 c6 c8 c5 l1 c1 c2 45 mhz input sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 16 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system [1] this a 30 khz bandwidth 455 khz ceramic filter. all the characterization and testing are done with this wideband filter. a more narrowband 15 khz bandwidth 455 khz ceramic filter that may be used as an alternative selection is murata cfukg455ke4a-r0. [2] r5 can be used to bias the oscillator transist or at a higher current for operation above 45 mhz. recommended value is 10 k ? . table 8. SA606DK demo board component list component description c1 51 pf npo ceramic c2 220 pf npo ceramic c5, c9, c14, c17, c18, c21, c23, c26 100 nf ? 10 % monolithic ceramic c6 5 pf to 30 pf trim cap c7 1 nf ceramic c8, c15 10.0 pf npo ceramic c10 10 ? f tantalum (minimum) c12 2.2 ? f ? 10 % tantalum c19 390 pf ? 10 % monolithic ceramic c27 2.2 ? f tantalum fl1, fl2 [1] ceramic filter murata cfukf455kb4x-r0 ift1 330 ? h toko 836an-0129z l1 0.33 ? h toko scb-1320z l2 1.2 ? h x1 44.545 mhz crystal icm4712701 r5 [2] not used in application board r10 8.2 k ?? 5 % 1/4w carbon composition r11 10 k ?? 5 % 1/4w carbon composition r17 2.4 k ?? 5 % 1/4w carbon composition r18 3.3 k ?? 5 % 1/4w carbon composition r19 11 k ?? 5 % 1/4w carbon composition sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 17 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system fig 17. sa6x6dk/sa58640dk top view with components 001aal912 toko sa6x6dk sa58640dk l1 l2 c6 c10 ft1 c9 c27 c12 4.7 nf rssi vcc audio gnd audio_dc if = 455 khz rf in 45 mhz 820 c1 c2 c21 c23 c7 x1 44.545 mhz c8 c5 r11 c15 c14 c17 c18 r19 r17 fil1 455 khz 455 khz fil2 r18 c26 c19 r10 u1 sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 18 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system fig 18. sa6x6dk/sa58640dk botto m view (viewed from top) 001aal892 sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 19 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 14. test information fig 19. sa606 45 mhz test circuit (relays as shown) 002aaf407 mixer if amp limiter osc rssi quad audio vreg 20 19 18 17 16 15 14 13 12 11 1234 567 8 910 c23 c21 fl1 c18 c17 fl2 r17 2.4 k c26 c15 c9 c10 v cc rssi_out c12 r10 audio_out c27 r19 16 k ift1 c14 c7 l2 x1 c6 c8 l1 c1 c2 45 mhz c16 1.3 k 51.7 ? 36 db, 156 k/50 pad sw5 sw6 c19 32.8 71.5 96.5 ? 10.6 db, 50 /50 pad sw7 r18 3.3 k c20 51.5 ? 29 db, 929 /50 pad sw8 c22 32.6 96.5 ? 10.6 db, 50 /50 pad 71.5 c24 3880 50.5 ? 25 db, 1500 /50 pad 2430 sw9 r13 sw11 r14 r11 sw10 r12 deemphasis filter r9 sw4 r8 39.2 r7 30.5 r6 178 ext. loc osc 44.545 mhz sw3 c5 sw1 r4 c4 51.1 sw2 c3 r2 r1 r3 c-weighted audio measurement circuit mini-circuit zsc2-1b 45.06 mhz sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 20 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system [1] this value can be reduced when a battery is the power source. [2] this a 30 khz bandwidth 455 khz ceramic filter. all the characterization and testing are done with this wideband filter. a more narrowband 15 khz bandwidth 455 khz ceramic filter that may be used as an alternative selection is murata cfukg455ke4a-r0. table 9. automatic test circuit component list component description c1 100 pf npo ceramic c2 390 pf npo ceramic c5, c9, c14, c17, c18, c21, c23, c25, c26, c27 100 nf ? 10 % monolithic ceramic c6 22 pf npo ceramic c7 1 nf ceramic c8, c15 10 pf npo ceramic c10 10 ? f [1] tantalum (minimum) c12 2.2 ? f c27 2.2 ? f ? 10 % monolithic ceramic fl1, fl2 [2] ceramic filter murata cfukf455kb4x-r0 ift1 455 khz (ce = 180 pf) toko rmc-2a6597h l1 147 nh to 160 nh coilcraft uni-10/142-04j08s l2 0.8 ? h nominal; toko 292cns-t1038z r9 2 k ?? 1 % 1/4 w metal film r10 10 k ?? 1% r11, r14 10 k ?? 1% r12 2 k ?? 1% r13 20 k ?? 1% r17 2.4 k ?? 5 % 1/4 w carbon composition r18 3.3 k ? r19 16 k ? x1 44.545 mhz crystal icm4712701 sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 21 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system (1) set rf generator at 45.000 mhz; use a 1 khz modulation frequency and a 6 khz deviation if using 16 khz filters, or 8 khz if using 30 khz filters. (2) the smallest rssi voltage (i.e., when no rf input is present and the input is terminated) is a measure of the quality of the layout and design. if the lowest rssi voltage is 500 mv or higher, it means the receiver is in regenerative mode. in that case, the receiver sensit ivity will be worse than expected. (3) the c-message and de-emphasis filter combinati on has a peak gain of 10 db for accurate measurements. without the gain, the measurement s may be affected by the noise of the scope and hp339 analyzer. the de-emphasis filter has a fixed ? 6 db/octave slope between 300 hz and 3khz. (4) the measured typical sensitivity for 12 db sinad should be 0.35 ? v or ? 116 dbm at the rf input. (also see figure 10 .) fig 20. sa606 application circuit test setup scope sa616 demoboard (2) rssi audio 002aag099 rf generator (1) 45 mhz v cc (+3 v) dc voltmeter hp339a distortion analyzer (4) c-message (3) de-emphasis filter sa606 all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2013. all rights reserved. product data sheet rev. 6 ? 8 november 2013 22 of 33 nxp semiconductors sa606 low-voltage high performance mixer fm if system 15. package outline fig 21. package outline sot163-1 (so20) 8 1 , 7 $ p d [ $ $ $ e s f ' ( h + ( / / s 4 = \ z y 5 ( ) ( 5 ( 1 & |