Si4736/37 AM/FM/WB Radio Receivers

Si468x devices provide revolutionary advances in size, power consumption, and performance, enabling high-volume, cost-sensitive multimedia products to incorporate digital broadcast features.  

Si4736/37 devices are the industry's first fully integrated, 100% CMOS AM/FM/WB and FM/WB radio receivers. Si4736/37 AM/FM/WB radio ICs provide space savings and low-power consumption necessary for portable devices while delivering high performance and design simplicity desired for all AM/FM/WB solutions. With unmatched integration and PCB space savings, Si4736/37 ICs require just two external components and less than 15 mm² of board area, excluding antenna inputs. Leveraging our proven and patented Si4700/01 FM tuner's digital low intermediate frequency (low-IF) receiver architecture, Si4736/37 ICs deliver superior RF performance and interference rejection in both AM and FM bands. The high integration and complete system production test simplify design-in, increase system quality, and improve manufacturability.

Si468x digital radio receivers are the most cost-effective single-chip digital radio receivers available on the market today, supporting worldwide radio reception and certified for both Digital Radio Tick Mark and AM/FM HD Radio.

Tone detection
1050 Hz
Digital tuning

Common Specs

  • Weather band support (162.4–162.55 MHz)
  • Worldwide FM band support (76–108 MHz)
  • Worldwide AM band support (520–1710 kHz)
  • 1050 Hz tone detection
  • AM/FM/WB digital tuning
  • No manual alignment necessary
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Part Number Tuning Method Display Method Mono/Stereo RDS FM AM SW LW WB TX EN55020

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