Si4790x Automotive Tuners

Si4790x analog AM/FM receiver and digital radio tuners are the most integrated monolithic ICs in the industry with the smallest external bill of materials and set a new standard for automotive broadcast reception. Our automotive tuners feature a common software API, allowing reuse of R&D across multiple product lines, and can scale from low cost single tuner AM/FM radios to high performance systems with multiple tuners and multiple antennas.

Support of all
Broadcast standards
Package as small as
7mm x 7mm

Si4790x Common Specs

  • Worldwide FM band support (64–108 MHz)
  • Worldwide AM band support (520–1710 kHz)
  • LW band support (144–288 kHz)DAB/DAB+/DMB support (Si47902 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 48-pin, 7 x 7 x 0.85 mm
  • Pb-free/RoHS compliant
  • AEC-Q100 qualified (A-grade parts)

AM/FM

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

DRM30/DRM+ (Si47902 and Si47907)

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

DAB/DAB+/DMB (Si47902 only)

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

HD Radio (Si47901 and Si47902)

  • Digital I/Q interface to HD Radio Processor
  • Fast FM HD Radio band scan
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Part Number FM AM SW LW WB RDS DRM30/DRM+ HD Radio DAB/DAB+

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