SI4355-B1A-FM

RF Receivers Overview

The SI4355-B1A-FM is a Sub-GHz RF receiver from the EZRadio series by Silicon Labs. It supports FSK, GFSK, and OOK modulation with a maximum data rate of 500 kbps. Operating frequencies include 283–350 MHz, 425–525 MHz, and 850–960 MHz. The device features -116 dBm sensitivity and draws 10 mA during reception. It operates on a 1.8V to 3.6V supply within a -40°C to 85°C temperature range. Packaged in a 20-QFN (3x3 mm) surface-mount format, it integrates automatic frequency control and packet processing capabilities.

RF Receivers Feature Summary

• Integrates low-noise amplifier, mixer, and digital baseband for complete signal chain
• Supports programmable frequency synthesis across multiple Sub-GHz bands
• Includes automatic gain control and automatic frequency correction
• Features integrated packet handling with preamble and sync word detection

RF Receivers Applications

• Remote control systems
• Home security and alarm systems
• Telemetry devices
• Garage door openers
• Remote keyless entry

RF Receivers Procurement Notes

Verify component status as not recommended for new designs. Confirm package type matches 20-VFQFN exposed pad requirements. Ensure voltage supply aligns with 1.8V to 3.6V specifications. Check operating temperature range compatibility for -40°C to 85°C environments. Validate modulation support for FSK, GFSK, or OOK protocols.

RF Receivers Selection Notes

Select this receiver for applications requiring low current consumption and high sensitivity. Consider the 10 mA receive current and 50 nA standby current for battery-powered devices. Evaluate the 64-byte FIFO buffer for data throughput needs. Assess the need for integrated battery voltage sensing. Verify interface compatibility with SPI connections to microcontrollers.

RF Receivers Part Context

Part of the EZRadio family designed for simple integration and flexibility. Offers plug-and-play simplicity while supporting diverse application requirements. Combines space efficiency with cost-effectiveness through a compact 3 mm x 3 mm QFN package. Targets IoT and wireless sensor network deployments.

RF Receivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

RF Receivers FAQ

What modulation formats does the SI4355-B1A-FM support?

It supports FSK, GFSK, and OOK modulation formats.

What is the maximum data rate for this receiver?

The maximum data rate is 500 kbps.