Si4734/35-B20
BROADCAST AM/FM/SW/LW RADIO RECEIVER
Features
Worldwide FM band support
No manual alignment necess...
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...