SI4757-A30-GMR

RF Receivers Overview

The SI4757-A30-GMR is an automotive-qualified RF receiver supporting FM, AM, Shortwave (SW), and Longwave (LW) bands. It operates within a frequency range of 520 kHz to 1.71 MHz for AM/SW/LW and 64 MHz to 108 MHz for FM. The device features a 32-QFN (5x5) surface-mount package and supports I2C and I2S interfaces. It is designed for high-performance audio reception in vehicles.

RF Receivers Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Integrated support for multiple broadcast bands including FM, AM, SW, and LW
• Digital audio output capability via I2S interface

RF Receivers Applications

• In-dash automotive infotainment systems
• Vehicle navigation units with radio functionality
• Automotive telematics control modules

RF Receivers Procurement Notes

This component has reached End-of-Life status and is officially obsolete. Verify availability through authorized distributors or secondary market channels. Confirm the specific revision suffix matches design requirements. Ensure final acceptance testing accounts for the discontinued lifecycle stage before committing to production volumes.

RF Receivers Selection Notes

Select this part for applications requiring broad band coverage including longwave and shortwave alongside standard AM/FM. The AEC-Q100 qualification ensures suitability for harsh automotive environments. Consider the 32-QFN footprint for PCB layout constraints. Evaluate alternative Skyworks models if current supply chain risks associated with obsolete parts are unacceptable.

RF Receivers Part Context

The SI4757 belongs to the Skyworks Si475x series of single-chip radio receivers. This family targets the automotive sector with integrated tuning and demodulation capabilities. The -A30-GMR suffix indicates the specific package type and tape-and-reel packaging configuration for automated assembly processes.

RF Receivers Replacement Considerations

As the SI4757-A30-GMR is obsolete, consider the SI4754-A40-GMR for general AM/FM applications or the SI4763-A42-GMR for FM/RDS needs. Both are active alternatives from Skyworks but lack the specific SW/LW support of the SI4757.