SI4770-A20-GM

RF Receivers Overview

The SI4770-A20-GM is an RF receiver supporting AM, FM, and RDS protocols. It operates within frequency ranges of 520kHz to 1.71MHz and 64MHz to 108MHz. The device features a 40-QFN (6x6) package with surface mount installation. Supply voltage ranges from 4.5V to 5.5V, with a receive current of 140mA. Operating temperature spans -40°C to 85°C. It includes RSSI capabilities and utilizes I2S interface for data transmission.

RF Receivers Feature Summary

• Supports AM, FM, and RDS broadcast reception
• Integrated RSSI functionality
• High-performance Pro-Audio and HD Radio tuner capability

RF Receivers Applications

• Consumer electronics broadcast radio
• HD Radio tuning systems
• Pro-Audio applications

RF Receivers Procurement Notes

Verify component status as the SI4770-A20-GM is listed as obsolete or not recommended for new designs in some sources. Confirm availability through authorized distributors and check for alternative packages or updated series components like the SI477x series if current stock is limited.

RF Receivers Selection Notes

Select this component for applications requiring integrated AM/FM/RDS reception with HD Radio support. Ensure supply voltage matches the 4.5V to 5.5V range. Consider the 40-QFN package size for PCB layout constraints and verify thermal requirements for the -40°C to 85°C operating range.

RF Receivers Part Context

Part of the SI477x series by Skyworks Solutions Inc., designed for high-performance consumer electronics. The SI4770 variant specifically targets broadcast radio receivers with advanced audio processing capabilities. It integrates RF and baseband functions into a single chip solution.

RF Receivers Replacement Considerations

Check for SI4770-A10-GM as a potential variant. Consult Skyworks PCN documents for updates on the SI47yy series or newer replacements due to obsolescence status.