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Si4730-B20

Silicon Laboratories
Part Number Si4730-B20
Manufacturer Silicon Laboratories
Description BROADCAST AM/FM RADIO RECEIVER
Published Jun 19, 2015
Detailed Description Si4730/31-B20 BROADCAST AM/FM RADIO RECEIVER Features  Worldwide FM band support  EN55020 compliant (76–108 MHz) ...
Datasheet PDF File Si4730-B20 PDF File

Si4730-B20
Si4730-B20

Overview
Si4730/31-B20 BROADCAST AM/FM RADIO RECEIVER Features  Worldwide FM band support  EN55020 compliant (76–108 MHz)  No manual alignment necessary  Worldwide AM band support  Programmable reference clock (520–1710 kHz)  Volume control  Excellent real-world performance  Programmable soft mute control  Freq synthesizer with integrated VCO  RDS/RBDS processor (Si4731 only)  Advanced AM/FM seek tuning  Optional digital audio output (Si4731  Automatic frequency control (AFC) only)  Automatic gain control (AGC)  2-wire and 3-wire control interface  Integrated LDO regulator  2.
7 to 5.
5 V supply voltage  Digital FM stereo decoder  Firmware upgradeable  Programmable de-emphasis  Wide range of ferrite loop sticks and  Adaptive noise suppression air loop antennas supported  AM/FM digital tuning  3 x 3 x 0.
55 mm 20-pin QFN package  Pb-free/RoHS compliant Applications  Table and portable radios  Stereos  Mini/micro systems  CD/DVD players  Portable media players  Boom boxes  Cellular handsets  Modules  Clock radios  Mini HiFi  Entertainment systems Description The Si4730/31 is the first digital CMOS AM/FM radio receiver IC that integrates the complete tuner function from antenna input to audio output.
NCe-d3f1o-r34N-e3w5-DDe6si0gns GPO1 GPO2/INT GPO3/DCLK Ordering Information: See page 29.
Pin Assignments Si4730/31-GM (Top View) DFS NC 1 FMI 2 RFGND 3 AMI 4 RST 5 6 20 19 18 17 16 15 DOUT GND PAD 14 LOUT 13 ROUT 12 GND 7 8 9 10 11 VDD Functional Block Diagram AMI AM ANT RFGND FM ANT FMI 2.
7– 5.
5 V VDD GND LNA AGC LNA AGC LDO Si473x RDS (Si4731) LOW-IF DIGITAL AUDIO (Si4731) DOUT DFS GPO/DCLK ADC DAC DSP ADC DAC ROUT LOUT AFC CONTROL INTERFACE VIO 1.
5–3.
6 V Patents pending Notes: 1.
To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Universal Layout Guide.
” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
2.
Place S...


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