SI4312-B11-GM

RF Receivers Overview

The SI4312-B11-GM is a Sub-GHz radio receiver manufactured by Silicon Labs, designed for UHF applications. It operates at frequencies of 315 MHz and 433.92 MHz with a supply voltage range of 2.7 V to 3.6 V. The device features a QFN-20 package measuring 3 mm x 3 mm x 0.85 mm. It supports GMSK, 4GFSK, GFSK, and OOK modulation schemes via an SPI interface. Operating temperatures range from -40 °C to +85 °C, with a typical operating current of 20 mA.

RF Receivers Feature Summary

• Supports multiple modulation formats including GMSK, 4GFSK, GFSK, and OOK
• Integrated low IF architecture for efficient signal processing
• Surface-mount QFN-20 packaging for compact integration

RF Receivers Applications

• Sub-GHz wireless remote control systems
• ISM band sensor networks
• Low-cost telemetry links

RF Receivers Procurement Notes

Verify component authenticity through authorized channels as the part may be end-of-life. Confirm package marking and pinout alignment with official datasheets before procurement. Ensure environmental compliance documentation matches project requirements.

RF Receivers Selection Notes

Select this receiver for fixed-frequency Sub-GHz applications requiring simple modulation schemes. Compare against integrated transceiver options if transmission capability is needed. Evaluate power consumption constraints against the specified operating current.

RF Receivers Part Context

This component belongs to the Si431x family of Sub-GHz receivers. It complements other Silicon Labs RF solutions by providing dedicated reception capabilities for ISM band communications. The part is distinct from transceivers like the Si446x series which include transmit functionality.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Check manufacturer archives for direct replacements or consult application notes for compatible alternatives within the same product family.