Si4704/05 FM Radio Receivers

 

The Si4704/05 enhanced FM receiver family is the most advanced portable solution available today offering digital audio out, worldwide FM band support and highly flexible, mature and proven FM functionality in a simple API.

The Si4705 IC offers digital audio out for FM recording.  The content can also be tagged with RDS information, allowing song name and artist labels to be displayed as is done with MP3 meta data. Using the digital audio out, the Si4705 can also reduce total system power consumption by avoiding unnecessary ADC/DAC conversions between the FM receiver and the host processor.

 

Features

  • Worldwide FM band support (64~108 MHz)
  • Supports integrated antenna
  • Seek tuning
  • Automatic frequency control (AFC)
  • Automatic gain control (AGC)
  • Adjustable seek parameters
  • Adjustable mono/stereo blend

Si4704/05 Product Matrix

Devices
Part Number Data Sheet Description Tuning Method Display Method Mono/Stereo RDS FM AM SW LW WB TX EN55020
Si4704
FM Receiver, short antenna capable Digital Digital Stereo No Yes No No No No No Yes
Si4705
FM Receiver w RDS, short antenna capable Digital Digital Stereo Yes Yes No No No No No Yes
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