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Si4734-B20

Silicon Laboratories
Part Number Si4734-B20
Manufacturer Silicon Laboratories
Description BROADCAST AM/FM/SW/LW RADIO RECEIVER
Published Jun 19, 2015
Detailed Description Si4734/35-B20 BROADCAST AM/FM/SW/LW RADIO RECEIVER Features „ Worldwide FM band support „ No manual alignment necess...
Datasheet PDF File Si4734-B20 PDF File

Si4734-B20
Si4734-B20


Overview
Si4734/35-B20 BROADCAST AM/FM/SW/LW RADIO RECEIVER Features „ Worldwide FM band support „ No manual alignment necessary (64–108 MHz) „ Adjustable channel filters „ Worldwide AM band support „ EN55020 complaint (520–1710 kHz) „ Programmable reference clock „ SW band support (2.
3–21.
85 MHz) „ Digital volume control „ LW band support (153–279 KHz) „ Adjustable soft mute control „ Excellent real-world performance „ RDS/RBDS processor (Si4735 only) „ Freq synthesizer with integrated VCO „ Optional digital audio out (Si4735 only) „ Automatic frequency control (AFC) „ 2-wire and 3-wire control interface „ Automatic gain control (AGC) „ 2.
7 to 5.
5 V supply voltage „ Integrated LDO regulator „ Wide range of ferrite loop sticks and air „ Digital FM stereo decoder loop antennas supported „ Programmable de-emphasis „ 3 x 3 x 0.
55 mm 20-pin QFN package „ Adaptive noise suppression z Pb-free/RoHS compliant „ AM/FM/SW/LW digital tuning 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 Si4734/35 is the first digital CMOS AM/FM/SW/LW radio receiver IC that integrates the complete tuner function from antenna input to audio output.
Ordering Information: See page 31.
Pin Assignments Si4734/35-GM (Top View) NC GPO1 GPO2/INT GPO3/DCLK 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 SEN SCLK SDIO RCLK VIO Functional Block Diagram FM / SW ANT FMI AM / LW ANT AMI RFGND 2.
7 - 5.
5 V VDD GND LNA AGC LNA AGC LDO Si4734/35 RDS (Si4735) LOW-IF DIGITAL AUDIO (Si4735) DOUT DFS GPO/DCLK ADC DAC DSP ADC DAC ROUT LOUT AFC CONTROL INTERFACE VIO 1.
5-3.
6V Patents pending Notes: 1.
To ensure proper operation and receiver performance, follow the guidelines in “AN383: Antenna Selection and Universal Layout Guide.
” Silico...


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