automotive am/fm tuner copyright ? 2010 by silicon laboratories 11.16.10 lna reg rout lout/mpxout intb rstb vio rfgnd ami fmi fmo rfreg fmxi fmagc1 fmagc2 r l rclk/xtal1 xtal2 a0 a1 sda scl si475x 0/90 if pkd lna rds cntrl cik gen rf pkd rf pkd adc adc dac dac dsp rf pkd si475x-a10 high performance automotive am/fm radio receiver description the si475x radio receiver family employs rf cmos technology to bring outstanding radio receiver performance and automotive quality to th e automotive infotainment industry. the si475x family supports worldwide fm, am, shortwave, longwave, and weatherband radio reception. the si475x receiver system specifies a minimal bill of materials, resulting in a very small board space requirement, making the solution ideal for any automotive application from single tuner radios to multiple tuner radios addressing companion tmc/af reception/scanning. the monolithic ic incorporates a digital signal processor and microcontroller, leveraging silicon laboratories patented and proven low-if architecture, delivering superior rf performance and interference rejection, as well as excellent sensitivity in weak signal environments and superb selectivity and inter-modulation immunity in strong signal environments. the device performs signal conditioning with dynamic am/fm channel bandwidth control, a comprehensive set of weak signal processing engines, auto-calibrated digital tuning, and proven am/fm seek functionality based on multiple signal quality and band parameters. the device offers world-class performance for complete radio data service (rds) decoding, synchronization, error detection and correction. the device is also completely configurable, allowing raw rds data if so desired. the part provides an integrated clock oscillator or accepts a reference clock and an i 2 c-compatible 2-wire control interface. features - worldwide fm band support (64?108 mhz) - worldwide am band support (520?1710 khz) - advanced rds/rbds demodulator/decoder - digital fm mpx decoder - integrated fm loop-through - addresses companion af/rds data receiver - advanced am/fm noise blankers - dynamic am/fm channel bandwidth control - advanced fm hi-cut control - programmable fm stereo-mono blend - programmable am/fm soft mute - full suite of signal metrics: rssi, snr, multi-path interference, frequency offset, adjacent channel strength - analog audio outputs - analog fm mpx output - low-if architecture - eliminates expensive 10.7 mhz if ceramic filters - on-chip am/fm agc with integrated resistor and varactor banks - eliminates external pin diode attenuators - 1.5 to 5 v power supplies - qfn 32, 5 x 5 x0.85 mm - pb-free/rohs compliant - aec-q100 qualified applications - oem car radio systems - aftermarket car radio systems - oem car pnd docking system
automotive am/fm tuner copyright ? 2010 by silicon laboratories 11.16.10 silicon laboratories and silicon labs are trademarks of silicon laboratories inc. other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. si4750/51-a10 selected electrical specifications parameter test conditions min typ max units ambient temperature ?40 25 85 c analog supply voltage 5 v (va) 4.5 5 5.5 v digital supply voltage 3.3 v (vd) 2.7 3.6 v interface supply voltage (vio) 1.7 3.6 v analog supply current 150 ma digital supply current 50 ma interface supply current (vio) 5ma fm input frequency 64 108 mhz tune time 0.9 msec af scan time 8msec seek time/channel 35 msec max frequency deviation 150 khz maximum rf input voltage 130 dbuv am input frequency 510 1710 khz seek time/channel 50 msec maximum rf input voltage 145 dbuv package outline dimensions min nom max dimensions min nom max at 0.80 0.85 0.90 e2 3.50 3.60 3.70 a1 0.00 0.02 0.05 l 0.35 0.40 0.45 b 0.18 0.25 0.30 aaa ? ? 0.15 d 5.00 bsc. bbb ? ? 0.10 d2 3.45 3.60 3.75 ddd ? ? 0.05 e 0.50 bsc. eee ? ? 0.08 e 5.00 bsc. notes: 1. all dimensions shown are in millimeters (mm) unless otherwise noted. 2. dimensioning and tolerancing per ansi y14.5m-1994. 3. this drawing conforms to the jedec solid state outline mo-220, variation vhhd except for custom features d2, e2, l, and l1 whic h are toleranced per supplier designation. 4. recommended card reflow profile is per the jedec/ip c j-std-020 specification for small body components. ?
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