SI4777-A20-GM

RF Receivers Overview

The SI4777-A20-GM is an RF receiver supporting AM and FM bands from 520kHz to 1.71MHz and 64MHz to 108MHz, packaged in a 40-QFN (6x6) surface-mount format. It operates on a 4.5V to 5.5V supply with a receive current of 140mA and functions within a -40°C to 85°C temperature range. The component integrates RSSI capabilities and supports digital I2S output for HD Radio channel reception.

RF Receivers Feature Summary

• Integrates digital pre-processor for European RDS and North American Radio Broadcast Data System
• Provides true all-in-one chip functionality with zero-BOM implementation for RF receiving and demodulation
• Supports AM/FM HD Radio channel reception via digital I2S interface

RF Receivers Applications

• Consumer electronics broadcast radio receivers
• HD Radio tuner implementations
• Automotive infotainment systems requiring integrated AM/FM reception

RF Receivers Procurement Notes

Verify the obsolete status of this Skyworks component before procurement planning. Confirm availability through authorized distributors or secondary market channels as standard production may be discontinued. Ensure compatibility with existing PCB layouts and power supply designs when sourcing replacements or managing inventory for legacy products.

RF Receivers Selection Notes

Select this component for applications requiring integrated AM/FM reception with HD Radio support. Consider the 40-QFN package size and 4.5V to 5.5V operating voltage range. Verify that the digital I2S interface aligns with the host processor's audio data requirements and that the thermal performance meets the -40°C to 85°C operational environment.

RF Receivers Part Context

This part belongs to the Si4770/77-A20 series, which are high-performance consumer electronics broadcast radio receivers. The series incorporates digital preprocessing for RDS and RBDS protocols. These chips perform all required demodulation and signal conditioning to provide a complete solution for AM and FM radio reception in compact form factors suitable for modern electronic devices.

RF Receivers Replacement Considerations

Check the Si47yy Series OBS notice for official replacement guidance. Consult Skyworks Solutions Inc. documentation for confirmed substitute part numbers within the same product family or updated revisions.