SI4731-B20-GM

RF Receivers Overview

The SI4731-B20-GM is a broadcast AM/FM radio receiver manufactured by Skyworks Solutions Inc. It operates within the frequency range of 520kHz to 1.71MHz for AM reception and covers FM bands, packaged in a 20-QFN (3x3) surface-mount device. The component supports a supply voltage of 2.7V to 5.5V and draws 19.1mA during reception. It functions reliably across an operating temperature range of -20°C to 85°C.

RF Receivers Feature Summary

• Integrates advanced digital tuning with auto-calibration capabilities
• Includes adjustable soft mute and FM stereo processing features
• Supports broad band coverage including AM, FM, SW, and LW

RF Receivers Applications

• Portable broadcast radio receivers
• Handheld communication devices
• General purpose RF reception modules

RF Receivers Procurement Notes

Verify current availability status as this part may be subject to obsolescence notices. Confirm package integrity against recent protective material change PCNs. Ensure compatibility with existing board layouts regarding the 20-QFN footprint and moisture sensitivity level requirements before procurement.

RF Receivers Selection Notes

Select this component for applications requiring integrated AM/FM/SW/LW reception in compact form factors. Consider the specific frequency bands required, as this model focuses on broadcast ranges. Evaluate power consumption constraints relative to the 19.1mA receive current and verify interface compatibility with host microcontrollers.

RF Receivers Part Context

This receiver belongs to the Si473x family, which shares common architectural features such as seek algorithms and digital tuning. The SI4731 variant specifically targets AM and FM broadcast bands. It utilizes the same 20-QFN package found in related models like the SI4734, ensuring mechanical interchangeability while differing in tuned frequency ranges.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Check manufacturer obsolescence notices for potential end-of-life status.