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philips semiconductors sa606 low-voltage high performance mixer fm if system product specification replaces data of october 26, 1993 1997 nov 07 rf communications products 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 rssi if amp eb v reg oscillator limiter mixer quad + + audio rf data handbook
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 2 1997 nov 07 853-1576 18665 description the sa606 is a low-voltage high performance monolithic fm if system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic received signal strength indicator (rssi), voltage regulator and audio and rssi op amps. the sa606 is available in 20-lead sol (surface-mounted small outline large package) and 20-lead ssop (shrink small outline package). the sa606 was designed for portable communication applications and will function down to 2.7v. the rf section is similar to the famous sa605. the audio and rssi outputs have amplifiers with access to the feedback path. this enables the designer to level adjust the outputs or add filtering. features ? low power consumption: 3.5ma typical at 3v ? mixer input to >150mhz ? mixer conversion power gain of 17db at 45mhz ? xtal oscillator effective to 150mhz (l.c. oscillator or external oscillator can be used at higher frequencies) ? 102db of if amp/limiter gain ? 2mhz limiter small signal bandwidth ? temperature compensated logarithmic received signal strength indicator (rssi) with a 90db dynamic range ? low external component count; suitable for crystal/ceramic/lc filters ? excellent sensitivity: 0.31 m v into 50 w matching network for 12db sinad (signal to noise and distortion ratio) for 1khz tone with rf at 45mhz and if at 455khz ? sa606 meets cellular radio specifications ? audio output internal op amp ? rssi output internal op amp ? internal op amps with rail-to-rail outputs pin configuration rf in+ rf in- decoupling osc out osc in rssi mixer out if amp in if amp out gnd limiter in limiter out v cc d and dk packages audio feedback rssi feedback quadrature in if amp decoupling audio if amp decoupling limiter decoupling limiter decoupling 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 sr00347 figure 1. pin configuration ? esd protection: human body model 2kv robot model 200v applications ? portable cellular radio fm if ? cordless phones ? wireless systems ? rf level meter ? spectrum analyzer ? instrumentation ? fsk and ask data receivers ? log amps ? portable high performance communication receiver ? single conversion vhf receivers ordering information description temperature range order code dwg # 20-pin plastic small outline large (sol) package (surface-mount) -40 to +85 c SA606D sot163-1 20-pin plastic shrink small outline package (ssop) (surface-mount) -40 to +85 c SA606Dk sot266-1 absolute maximum ratings symbol parameter rating units v cc single supply voltage 7 v t stg storage temperature range -65 to +150 c t a operating ambient temperature range -40 to +85 c q ja thermal impedance d package dk package 90 117 c/w
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 3 block diagram 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 rssi if amp eb v reg oscillator limiter mixer quad + + audio sr00348 figure 2. block diagram dc electrical characteristics v cc = +3v, t a = 25 c; unless otherwise stated. symbol parameter test conditions limits units symbol parameter test conditions min typ max units v cc power supply voltage range 2.7 7.0 v i cc dc current drain 3.5 4.2 ma ac electrical characteristics t a = 25 c; v cc = +3v, unless otherwise stated. rf frequency = 45mhz + 14.5dbv rf input step-up; if frequency = 455khz; r17 = 2.4k w and r18 = 3.3k w ; rf level = -45dbm; fm modulation = 1khz with 8khz peak deviation. audio output with de-emphasis filter and c-message weighted filter. test circuit figure 3. the parameters listed below are tested using automatic test equipment to assure consi stent electrical characterristics. the limits do not represent the ultimate performance limits of the device. use of an optimized rf layout wi ll improve many of the listed parameters. symbol parameter test conditions limits units symbol parameter test conditions min typ max units mixer/osc section (ext lo = 220mv rms ) f in input signal frequency 150 mhz f osc crystal oscillator frequency 150 mhz noise figure at 45mhz 6.2 db third-order input intercept point (50 w source) f1 = 45.0; f2 = 45.06mhz input rf level = -52dbm -9 dbm conversion voltage gain matched 14.5dbv step-up 13.5 17 19.5 db 50 w source +2.5 db rf input resistance single-ended input 8 k w rf input capacitance 3.0 4.0 pf mixer output resistance (pin 20) 1.25 1.5 k w if section if amp gain 50 w source 44 db limiter gain 50 w source 58 db input limiting -3db, r 17a = 2.4k, r 17b = 3.3k test at pin 18 -109 dbm am rejection 80% am 1khz 45 db audio level gain of two (2k w ac load) 70 120 160 mv sinad sensitivity if level -110dbm 17 db
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 4 ac electrical characteristics (continued) symbol parameter test conditions limits units symbol parameter test conditions min typ max units thd total harmonic distortion -35 -50 db s/n signal-to-noise ratio no modulation for noise 62 db rf rssi output, r 9 = 2k w rf level = -118dbm 0.3 .80 v rf level = -68dbm .70 1.1 1.80 v rf level = -23dbm 1.20 1.8 2.50 v rssi range 90 db rssi accuracy + 1.5 db if input impedance pin 18 1.3 1.5 k w if output impedance pin 16 0.3 k w limiter input impedance pin 14 1.3 1.5 k w limiter output impedance pin 11 0.3 k w limiter output voltage pin 11 130 mv rms rf/if section (int lo) audio level 3v = v cc , rf level = -27dbm 120 mv rms system rssi output 3v = v cc , rf level = -27dbm 2.2 v system sinad sensitivity rf level = -117dbm 12 db circuit description the sa606 is an if signal processing system suitable for second if systems with input frequency as high as 150mhz. the bandwidth of the if amplifier and limiter is at least 2mhz with 90db of gain. the gain/bandwidth distribution is optimized for 455khz, 1.5k w 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 oscillator. typical mixer characteristics include a noise figure of 6.2db, conversion gain of 17db, and input third-order intercept of -9dbm. the oscillator will operate in excess of 200mhz in l/c tank configurations. hartley or colpitts circuits can be used up to 100mhz for xtal configurations. butler oscillators are recommended for xtal configurations up to 150mhz. the output impedance of the mixer is a 1.5k w resistor permitting direct connection to a 455khz ceramic filter. the input resistance of the limiting if amplifiers is also 1.5k w . with most 455khz ceramic filters and many crystal filters, no impedance matching network is necessary. the if amplifier has 43db of gain and 5.5mhz bandwidth. the if limiter has 60db of gain and 4.5mhz bandwidth. to achieve optimum linearity of the log signal strength indicator, there must be a 12db(v) insertion loss between the first and second if stages. if the if filter or interstage network does not cause 12db(v) insertion loss, a fixed or variable resistor or an l pad for simultaneous loss and impedance matching can be added between the first if output (pin 16) and the interstage network. the overall gain will then be 90db with 2mhz bandwidth. the signal from the second limiting amplifier goes to a gilbert cell quadrature detector. one port of the gilbert cell is internally driven by the if. the other output of the if is ac-coupled to a tuned quadrature network. this signal, which now has a 90 phase relationship to the internal signal, drives the other port of the 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 2nd-order temperature compensation if needed. it can drive an ac load as low as 5k w with a rail-to-rail output. a log signal strength completes the circuitry. the output range is greater than 90db 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 2nd-order temperature compensation of the rssi, if needed. note: db(v) = 20log v out /v in
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 5 10 9 8 7 6 5 4 3 2 1 20 19 18 17 16 15 14 13 12 11 rssi if amp mixer quad minicircuit zsc21b audio c14 ift1 c10 c9 c8 c7 c6 x1 r7 30.5 l2 sw3 sw4 sw1 v cc ext. loc osc 44.545 45mhz r3 r1 r2 sw2 c3 c4 r4 51.1 c5 c2 c1 l1 r6 178 r8 39.2 oco weighted audio measurement circuit 45.06 mhz 50.5 2430 3880 96.5 32.6 71.5 c24 c22 c20 c19 c18 c15 c16 c17 flt2 sw7 sw6 sw5 sw8 sw9 c23 c21 r17 2.4k flt1 - 25db, 1500/50 w pad - 10db, 50/50 w pad - 29db, 929/50 w pad - 10.6db, 50/50 w pad - 36db, 156k/50 w pad 100pf npo ceramic 390pf npo ceramic 22pf npo ceramic 1nf ceramic 10.0pf npo ceramic 10pf npo ceramic 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 2.2 m f 100nf + 10% monolithic ceramic 10 m f tantalum (minimum) * c21 c23 c27 flt 1 flt 2 ift 1 l1 l2 x1 r9 r17 r10 r11 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 10k w + 1% 10k w + 1% 2.4k w + 5% 1/4w carbon composition 2k w + 1% 1/4w metal film 44.545mhz crystal icm4712701 0.8 m h nominal toko 292cnst1038z 455khz (ce = 180pf) toko rmc2a6597h ceramic filter murata sfg455a3 or equiv ceramic filter murata sfg455a3 or equiv 2.2 m f + 10% monolithic ceramic 147160nh coilcraft uni10/14204j08s c1 c2 c5 c6 c7 c8 c9 c10 c12 c14 c15 c17 c18 automatic test circuit component list 1.3k 51.7 71.5 96.5 32.8 51.5 oscillator r12 2k w + 1% r13 20k w + 1% r14 10k w + 1% r9 r12 deemphasis filter limiter v reg sw10 sw11 r11 r13 r10 + + c12 audio r14 rssi 16k r19 c25 100nf + 10% monolithic ceramic r18 r19 16k w r18 3.3k 3.3k w c26 c26 100nf + 10% monolithic ceramic c27 *note: this value can be reduced when a battery is the power source. sr00349 figure 3. sa606 45mhz test circuit (relays as shown)
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 6 10 8 7 6 4 3 2 1 5 9 20 19 18 17 16 14 13 12 11 15 rssi if amp mixer quad rssi output audio c14 ift1 c10 c9 c8 c7 c6 x1 l2 v cc c5 c2 c1 l1 c18 c15 c17 flt2 c23 c21 r17 2.4k flt1 51pf npo ceramic 220pf npo ceramic 5-30pf trim cap 1nf ceramic 10.0pf npo ceramic 10pf npo ceramic 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 100nf + 10% monolithic ceramic 2.2 m f + 10% tantalum 100nf + 10% monolithic ceramic 10 m f tantalum (minimum) * c26 c27 flt 1 flt 2 ift 1 l1 l2 x1 r10 r5 100nf + 10% monolithic ceramic 2.2 m f tantalum not used in application board (see note 8, pg 8) 8.2k + 5% 1/4w carbon composition 44.545mhz crystal icm4712701 1.2 m h ceramic filter murata sfg455a3 or equiv ceramic filter murata sfg455a3 or equiv c1 c2 c5 c6 c7 c8 c9 c10 c12 c14 c15 c17 c18 application component list 45mhz input limiter v reg oscillator + + c12 c26 r18 3.3k r19 11k c27 r10 r11 10k 10k c19 c23 390pf + 10% monolithic ceramic 100nf + 10% monolithic ceramic r11 10k + 5% 1/4w carbon composition r17 r18 2.4k + 5% 1/4w carbon composition 3.3k + 5% 1/4w carbon composition r19 11k + 5% 1/4w carbon composition ne606d/dk demo board c19 390pf .33 m h toko scb-1320z 330 m h toko 303ln-1130 c21 100nf + 10% monolithic ceramic 2.2 m f * note: this value can be reduced when a battery is the power source. sr00350 figure 4. sa606 45mhz application circuit
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 7 rf generator ne606 demo board cmessage hp339a distortion analyzer scope dc voltmeter v cc (+3) 45mhz de-emphasis filter rssi audio sr00351 figure 5. sa606 application circuit test set up notes: 1. c-message: the c-message and de-emphasis filter combination has a peak gain of 10 for accurate measurements. without the ga in, the measurements may be affected by the noise of the scope and hp339 analyzer. the de-emphasis filter has a fixed -6db/octave slop e between 300hz and 3khz. 2. ceramic filters: the ceramic filters can be 30khz sfg455a3s made by murata which have 30khz if bandwidth (they come in blue) , or 16khz cfu455ds, also made by murata (they come in black). all of our specifications and testing are done with the more wideban d filter. 3. rf generator: set your rf generator at 45.000mhz, use a 1khz modulation frequency and a 6khz deviation if you use 16khz filt ers, or 8khz if you use 30khz filters. 4. sensitivity: the measured typical sensitivity for 12db sinad should be 0.35 m v or -116dbm at the rf input. 5. layout: the layout is very critical in the performance of the receiver. we highly recommend our demo board layout. 6. rssi: 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 500mv or higher, it means the receiver is in regenerative mode. in that case, the recei ver sensitivity will be worse than expected. 7. supply bypass and shielding: all of the inductors, the quad tank, and their shield must be grounded. a 10-15 m f or higher value tantalum capacitor on the supply line is essential. a low frequency esr screening test on this capacitor will ensure consistent good se nsitivity in production. a 0.1 m f bypass capacitor on the supply pin, and grounded near the 44.545mhz oscillator improves sensitivity by 2-3db. 8. r5 can be used to bias the oscillator transistor at a higher current for operation above 45mhz. recommended value is 10k w .
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 8 6 5 4 3 2 55 35 15 5 25 45 65 85 105 125 v cc = 2.7v v cc = 3v v cc = 5v v cc = 7v ma c sr00352 figure 6. i cc vs temperature temperature ( c) 50 input intercept point (dbm) w 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 40 30 20 10 0 10 20 30 40 50 60 70 80 7v 3v 2.7v sr00353 figure 7. third order intercept point vs supply voltage
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 9 temperature ( c) noise figure 8.00 7.75 7.50 7.25 7.00 6.75 6.50 6.25 6.00 5.75 5.50 5.25 5.00 40 30 20 10 0 10 20 30 40 50 60 70 80 2.7v 3v 7.0v sr00354 figure 8. mixer noise figure vs supply voltage temperature ( c) 18.00 17.75 17.50 17.25 17.00 16.75 16.50 16.25 16.00 40 30 20 10 0 10 20 30 40 50 60 70 80 2.7v 3v 7.0v conversion gain (db) sr00355 figure 9. conversion gain vs supply voltage
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 10 20 10 0 10 20 30 40 50 60 70 80 66 56 46 36 26 16 6 4 14 24 34 fund product 3rd order product *50 w input if output power (dbm) rf* input level (dbm) rf = 45mhz if = 455khz sr00356 figure 10. mixer third order intercept and compression
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 11 decibels (db) 5 125 115 105 95 85 75 65 55 45 35 25 rf level (dbm) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 v cc = 3v rf = 45mhz deviation = 8khz audio level = 104.9mv rms audio thd + noise am rejection noise sr00357 figure 11. sensitivity vs rf level (-40 c) decibels (db) 5 125 115 105 95 85 75 65 55 45 35 25 rf level (dbm) 0 5 10 20 25 30 35 40 45 50 55 60 65 v cc = 3v rf = 45mhz deviation = 8khz audio level = 117.6mv rms audio thd + noise am rejection noise sr00358 figure 12. sensitivity vs rf level (+25 c)
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 12 decibels (db) 5 125 115 105 95 85 75 65 55 45 35 25 rf level (dbm) 0 5 10 15 20 25 30 35 40 45 50 55 60 65 v cc = 3v rf = 45mhz deviation = 8khz audio level = 127mv rms audio thd + noise am rejection noise sr00359 figure 13. sensitivity vs rf level (temperature 85 c) decibels (db) 5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 55 35 15 5 25 45 65 85 105 125 temperature ( c) v cc = 3v rf = 45mhz deviation = 8khz audio level = +117.6mv rms audio distortion am rejection noise rf level = -45dbm sr00360 figure 14. relative audio level, distortion, am rejection and noise vs temperature
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 13 2.400 2.000 1.600 1.200 0.800 0.400 0.000 95 85 75 65 55 45 35 25 15 5 5 if level (dbm) +85 c -40 c room voltage (v) sr00361 figure 15. rssi (455khz if @ 3v) voltage (v) 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 125 115 105 95 85 75 65 55 45 35 25 rf level (dbm) +85 c +27 c -40 c sr00362 figure 16. rssi vs rf level and temperature - v cc = 3v
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 14 300 55 35 15 5 25 45 65 85 105 125 v cc = 2.7v v cc = 3v v cc = 5v v cc = 7v 250 200 150 100 50 0 mv rms v c sr00363 figure 17. audio output vs temperature
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 15 ktdn9/91 ne606 *applies to stand-alone data sheets only. sr00365 figure 18. SA606D sol product board layout (2x actual size* e for reference use only)
philips semiconductors product specification sa606 low-voltage high performance mixer fm if system 1997 nov 07 16 606 silk screen 606 bottom 606 top note; all views are top view and not actual size. for reference only. sr00366 figure 19.
philips semiconductors product specification sa606 low-voltage high-performance mixer fm if system 1997 nov 07 17 so20: plastic small outline package; 20 leads; body width 7.5 mm sot163-1
philips semiconductors product specification sa606 low-voltage high-performance mixer fm if system 1997 nov 07 18 ssop20: plastic shrink small outline package; 20 leads; body width 4.4 mm sot266-1
philips semiconductors product specification sa606 low-voltage high-performance mixer fm if system 1997 nov 07 19 philips semiconductors and philips electronics north america corporation reserve the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performanc e. philips semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under a ny patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copy right, or mask work right infringement, unless otherwise specified. applications that are described herein for any of these products are for illustrative purposes only. philips semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. life support applications philips semiconductors and philips electronics north america corporation products are not designed for use in life support appl iances, devices, or systems where malfunction of a philips semiconductors and philips electronics north america corporation product can reasonab ly be expected to result in a personal injury. philips semiconductors and philips electronics north america corporation customers using or sel ling philips semiconductors and philips electronics north america corporation products for use in such applications do so at their own risk and agree to fully indemnify philips semiconductors and philips electronics north america corporation for any damages resulting from such improper use or sale. this data sheet contains preliminary data, and supplementary data will be published at a later date. philips semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. philips semiconductors 811 east arques avenue p.o. box 3409 sunnyvale, california 940883409 telephone 800-234-7381 definitions data sheet identification product status definition objective specification preliminary specification product specification formative or in design preproduction product full production this data sheet contains the design target or goal specifications for product development. specifications may change in any manner without notice. this data sheet contains final specifications. philips semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product. ? copyright philips electronics north america corporation 1997 all rights reserved. printed in u.s.a.

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