Si4795x Automotive Receivers


High-performance Automotive AM/FM Radio Receiver and HD-Radio™/DAB/DAB+/DMB/DRM Tuner, automotive qualified AEC-Q100.



  • Worldwide FM band support (64–108 MHz)
  • Worldwide AM band support (520–1710 kHz)
  • LW band support (144–288 kHz)
  • DAB/DAB+/DMB support (Si47952 only) (170–240 MHz)
  • SW band support (2.3–30 MHz)
  • NOAA Weather band support
  • On-chip soft-decision RDS/RDBS demodulator/decoder
  • Two analog audio outputs
  • Two digital audio ports (I2S)Integrated clock oscillator
  • 1.8 V or 3.3 V digital IO power supplies
  • 3.3 V analog power supply and 1.8 V digital power supply
  • QFN 56-pin, 8x8x0.85 mm
  • Pb-free/RoHS compliant
  • AEC-Q100 qualified (A-grade parts)


  • Comprehensive AM/FM signal processing firmware
  • Integrated active AM/FM buffers
  • Fully integrated AGC

DRM30/DRM+ (Si47952 and Si47957)

  • DRM detect
  • Digital I/Q interface to DRM processor
  • Fully integrated AGC

DAB/DAB+/DMB (Si47952 only)

  • Digital I/Q interface to DAB/DAB+/DMBprocessor
  • Integrated active Band III buffer
  • Fast DAB/DAB+/DMB band scan
  • Fully integrated AGC for Band III

HD Radio (Si47951 and Si47952)

  • Digital I/Q interface to HD RadioProcessor
  • Fast FM HD Radio band scan

Si4795x Product Matrix

Part Number Data Short FM AM SW LW WB RDS DRM30/DRM+ HD Radio DAB/DAB+
Yes Yes Yes Yes Yes Yes No Yes No
Yes Yes Yes Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes No Yes Yes No No
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