SI4704-B20-GM

RF Receivers Overview

The SI4704-B20-GM is a broadcast FM radio receiver IC from Skyworks Solutions Inc., designed for the 64 MHz to 108 MHz frequency band. It supports RDS/RBDS data decoding and operates on a supply voltage range of 2.7 V to 5.5 V. The component utilizes a 20-UFQFN package with dimensions of 3 mm x 3 mm and a height of 0.55 mm. It features a 3-wire interface and functions within an operating temperature range of -20°C to +85°C.

RF Receivers Feature Summary

• Integrated FM radio receiver with RDS/RBDS support
• Capable of operation with short antennas
• Low-voltage power supply compatibility
• Compact surface-mount packaging

RF Receivers Applications

• General purpose FM radio projects
• Portable audio devices
• Consumer electronics requiring compact receivers

RF Receivers Procurement Notes

Verify component status as this part is listed as obsolete or discontinued in available records. Confirm availability through authorized distributors or secondary markets, as standard supply channels may not stock new units. Check datasheet revisions for any functional changes before integration into designs.

RF Receivers Selection Notes

Select this component for applications requiring a complete FM solution with RDS decoding in a small footprint. Ensure the design accommodates the 2.7V to 5.5V supply range and the specific thermal requirements for the -20°C to +85°C operating window. Verify antenna matching networks are suitable for the short antenna capability.

RF Receivers Part Context

This device belongs to the SI470x series of FM receivers by Skyworks Solutions. It is part of a family of integrated radio tuners designed for low-power, space-constrained applications. The B20 suffix typically denotes specific pinout or configuration variants within the broader SI4704 product line.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consider consulting Skyworks Solutions directly for current recommended replacements or cross-reference with other models in the SI470x series if compatible.