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The Si4704 from Silicon Labs is an FM Radio Receiver IC that supports worldwide FM bands from 64 to 108 MHz with advanced FM seek tuning. This IC integrates the complete tuner function from antenna input to digital audio output, enabling a cost-efficient digital audio platform for consumer electronic applications with high TDMA noise immunity, superior radio performance, and high fidelity audio power amplification. It has excellent overload immunity and adaptive noise suppression with volume control. The device requires a DC supply from 2.7 to 5.5 V and supports 2-wire and 3-wire control interfaces. It can also reduce total system power consumption by avoiding unnecessary ADC/DAC conversions between the FM receiver and the host processor. The device is available in a 24-pin QFN package that measures 3 x 3 mm. It can be used in cellular handsets, USB FM radio, portable navigation, MP3 players, PDAs, portable radios, and notebook PCs.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    Silicon Labs
  • Description
    Compact FM Radio Tuner IC from 64 to 108 MHz

General Parameters

  • Frequency
    64 to 108 MHz
  • Integrations
    LNA, Digital to Analog Converter, Analog to Digital Converter, Multiplexer, Antenna, VCO
  • Channel
    Single Channel
  • Configuration
  • Supply Voltage
    2.7 to 5.5 V
  • Application
  • Package
    20-Pin QFN Package
  • Package Type
    Surface Mount
  • Dimension
    3 x 3 mm
  • Operating Temprature
    -40 to 95 Degree C
  • Storage Temperature
    -55 to 150 Degree C
  • RoHS

Technical Documents