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Si4731-B20 - BROADCAST AM/FM RADIO RECEIVER

Download the Si4731-B20 datasheet PDF. This datasheet also covers the Si4730-B20 variant, as both devices belong to the same broadcast am/fm radio receiver family and are provided as variant models within a single manufacturer datasheet.

Description

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.

Ordering Information: See page 29.

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 c.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (Si4730-B20-SiliconLaboratories.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
Si4731 BROADCAST AM/FM/SW/LW RADIO RECEIVER Skyworks
Si4730 BROADCAST AM/FM/SW/LW RADIO RECEIVER Skyworks
Si4730EY Current Sensing MOSFET Vishay
Si4734 BROADCAST AM/FM/SW/LW RADIO RECEIVER Skyworks
Si4735 BROADCAST AM/FM/SW/LW RADIO RECEIVER Skyworks

Other Datasheets by Silicon Laboratories

Part Number Description
Si4731-B20 BROADCAST MULTI-BAND RADIO RECEIVER
Si4731-D50 BROADCAST AM/FM RADIO RECEIVER
Si4731-D60 BROADCAST AM/FM/SW/LW RADIO RECEIVER
Si4730-B20 BROADCAST MULTI-BAND RADIO RECEIVER
Si4730-B20 BROADCAST AM/FM RADIO RECEIVER

Full PDF Text Transcription

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Si4730/31-B20 BROADCAST AM/FM RADIO RECEIVER 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.
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