SI4356-B1A-FM

RF Receivers Overview

The SI4356-B1A-FM is a standalone Sub-GHz RF receiver from Silicon Labs, part of the EZRadio family. It supports FSK, GFSK, and OOK modulation schemes within the 315MHz to 917MHz frequency range. The device features a sensitivity of -113dBm at 120kbps and operates on a single supply voltage between 1.8V and 3.6V. It draws 12mA during reception and is housed in a compact 20-QFN (3x3mm) package with exposed pad for surface mount installation. The component functions as a dedicated receiver without transmission capabilities.

RF Receivers Feature Summary

• Supports FSK, GFSK, and OOK modulation protocols
• Pin-configurable operation via SEL0-SEL3 selection pins
• Integrated low IF architecture for efficient signal processing
• Compact 20-pin QFN package design

RF Receivers Applications

• Remote Keyless Entry (RKE) systems
• Wireless security and alarm systems
• Remote control applications

RF Receivers Procurement Notes

Verify component status carefully as this part is marked Not Recommended for New Designs (NRND). Confirm availability through authorized distributors, noting that standard packaging quantities may apply. Ensure compatibility with existing PCB layouts due to the specific 20-QFN footprint. Check for potential minimum order quantity restrictions or lead time variations associated with end-of-life or limited production status.

RF Receivers Selection Notes

Select this component when a dedicated, low-cost Sub-GHz receiver is required for simple data links. It is suitable for applications using FSK, GFSK, or OOK modulation where transmission is handled by a separate transceiver. Consider the pin-configurable nature for flexible frequency and bandwidth setup. Evaluate power consumption requirements against the 12mA receive current and 1.8V-3.6V supply range.

RF Receivers Part Context

This receiver belongs to the Silicon Labs EZRadio series, designed for simple, low-power wireless communication. It complements other EZRadio transceivers like the Si4464, which support additional modulation types such as GMSK and 4GFSK. The SI4356 provides a cost-effective solution for basic remote control and sensor data reception tasks in the Sub-GHz ISM bands.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the component is marked Not Recommended for New Designs, alternative receivers from the same manufacturer or compatible third-party solutions should be evaluated based on frequency range, modulation support, and package dimensions.