Si4734-B20

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 D...