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Si4731-D50 Datasheet Broadcast Am/fm Radio Receiver

Manufacturer: Silicon Laboratories

Overview: Si4730/31-D50 BROADCAST AM/FM RADIO RECEIVER.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

 Mobile Internet Devices  Tablets  USB FM radio  eBooks The Si4730/31-D50 is the fourth generation digtial CMOS AM/FM radio receiver IC from Silicon Labs.

The Si4730/31-D50 integrates the complete tuner function from antenna input to audio output.

Functional Block Diagram AMI AM ANT RFGND FM ANT FMI 2.7– 5.5 V VA GND LNA AGC LNA AGC LDO Si473x RDS (Si4731) LOW-IF DIGITAL AUDIO DOUT DFS GPO/DCLK ADC DAC DSP ADC DAC ROUT LOUT AFC CONTROL INTERFACE VD 1.62–3.6 V Ordering Information: See page 26.

Key Features

  • Worldwide FM band support (64.
  • 108 MHz).
  • Worldwide AM band support (520.
  • 1710 kHz).
  • Excellent real-world performance.
  • Integrated VCO.
  • Advanced AM/FM seek tuning.
  • AM/FM digital tuning.
  • Automatic frequency control (AFC).
  • Automatic gain control (AGC).
  • Digital FM stereo decoder.
  • Programmable AVC max gain.
  • Programmable de-emphasis.
  • Seven selectable AM channel filters.
  • Advanced audio processing.
  • No manual alignment.

Si4731-D50 Distributor & Price

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