Si4730-B20 - Silicon Laboratories

Si4730-B20 BROADCAST MULTI-BAND RADIO RECEIVER

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.

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 ster.