SI4362-B1B-FM

RF Receivers Overview

The SI4362-B1B-FM is a Sub-GHz RF receiver from the EZRadioPRO family, operating within the 142 MHz to 1.05 GHz frequency range. It supports FSK, GFSK, MSK, ASK, and OOK modulation schemes with a maximum data rate of 1 Mbps. The device features a receive sensitivity of -126 dBm and consumes 13 mA during reception. It operates on a voltage supply between 1.8 V and 3.6 V and functions across a temperature range of -40°C to 85°C. The component is housed in a 20-QFN (4x4) surface-mount package.

RF Receivers Feature Summary

• Supports multiple low-power modulation protocols including FSK, GFSK, MSK, ASK, and OOK for versatile wireless communication.
• Delivers high receive sensitivity of -126 dBm to ensure reliable signal detection in sub-GHz bands.
• Integrates a highly configurable packet handler and general-purpose digital I/Os for flexible system design.

RF Receivers Applications

• Wireless metering systems
• Industrial remote control applications
• Security and alarm systems

RF Receivers Procurement Notes

Verify the specific suffix 'FMR' against official Silicon Labs documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints for the 20-QFN package. Confirm that the B1B revision aligns with current design-in requirements, as component revisions may impact pinout or electrical characteristics.

RF Receivers Selection Notes

Select this model when only receiving functionality is required for sub-GHz links. Compare against transceiver variants if bidirectional communication is needed. Evaluate the 13 mA active current consumption against battery life requirements. Consider the -126 dBm sensitivity limit for link budget calculations in noisy environments.

RF Receivers Part Context

This part belongs to the EZRadioPRO series, designed for low-cost, low-power wireless applications. It complements other devices in the family by providing dedicated receiver capabilities without the complexity of transmission circuitry. The component is widely used in IoT and industrial telemetry where simple, robust downlink communication is sufficient.

RF Receivers Replacement Considerations

SI4362-B1B-FMR is listed as obsolete; consider SI4362-C2A-GMR as a potential successor. Verify pin-to-pin compatibility and software register mapping before substitution. Review errata documents for both the legacy and replacement parts to address any known silicon issues.