SI4739-B20-GM

RF Receivers Overview

The SI4739-B20-GM is an RF receiver manufactured by Skyworks Solutions Inc., designed for FM and Wideband (WB) applications. It operates within frequency ranges of 76MHz to 108MHz and 162.4MHz to 162.55MHz. The component utilizes a surface-mount installation type and is housed in a 20-QFN (3x3) package with exposed pads. It supports PCB antenna connections and functions within a supply voltage range of 2.7V to 5.5V. The device is rated for operation between -20°C and 85°C, with a receive current of 19.1mA.

RF Receivers Feature Summary

• Supports simultaneous reception of FM broadcast band and VHF maritime mobile band signals
• Integrated single-chip solution for AM/FM/WB radio applications
• Surface-mount design compatible with automated PCB assembly processes

RF Receivers Applications

• Marine VHF communication receivers
• Automotive infotainment systems requiring wideband capabilities
• Portable radio devices supporting multiple frequency bands

RF Receivers Procurement Notes

Verify the specific suffix B20 against the official datasheet to confirm pinout and functional compatibility. Check manufacturer announcements for obsolescence status, as this part may be discontinued or subject to product change notices. Ensure the 20-QFN footprint matches the target PCB layout precisely. Confirm RoHS compliance and moisture sensitivity level requirements for the manufacturing process.

RF Receivers Selection Notes

Select this component when both FM broadcast and VHF maritime frequencies are required in a single receiver channel. Compare power consumption metrics against alternative Skyworks models like the SI4730 if battery life is critical. Evaluate the 20-QFN package size constraints relative to other available packages such as SSOP. Consider the operating temperature range suitability for the intended environmental conditions.

RF Receivers Part Context

This part belongs to the Skyworks SI47xx series of integrated radio tuners. These components are widely used in consumer electronics and specialized communication equipment. The SI4739 variant specifically targets applications needing dual-band coverage without requiring separate tuning circuits. It represents a consolidated solution for multi-standard radio reception in compact form factors.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify availability of direct replacements through official Skyworks channels or authorized distributors.