SI4031-B1-FM

RF Transmitter Overview

The SI4031-B1-FM is an RF transmitter from the EZRadioPRO series, offering continuous frequency coverage from 240MHz to 930MHz. It supports FSK, GFSK, and OOK modulation schemes with a maximum data rate of 256kbps. The device delivers an output power of 13dBm and operates on a supply voltage range of 1.8V to 3.6V. It features a 20-VFQFN exposed pad package for surface mount installation.

RF Transmitter Feature Summary

• Supports FSK, GFSK, and OOK modulation protocols
• Complies with FCC and ETSI regulatory requirements
• Integrated PCB or surface mount antenna interface

RF Transmitter Applications

• General purpose wireless communication systems
• ISM band telemetry applications
• Low-power remote control devices

RF Transmitter Procurement Notes

Verify the specific suffix (FM) against the manufacturer's current datasheet to confirm pinout and package dimensions. Ensure the operating frequency range aligns with regional ISM band regulations. Cross-reference the supply voltage requirements with the target system design to guarantee stable operation within the 1.8V to 3.6V window.

RF Transmitter Selection Notes

Select this component when a dedicated transmitter solution is required for frequencies between 240MHz and 930MHz. Consider the 13dBm output power for link budget calculations. Evaluate the 256kbps data rate limit against application throughput needs. The QFN package requires appropriate thermal management during soldering processes.

RF Transmitter Part Context

This part belongs to the Silicon Labs EZRadioPRO family, designed for low-cost, high-performance wireless connectivity. The SI4031 variant specifically focuses on transmission capabilities, complementing receiver-only or transceiver models in the same ecosystem. It targets applications requiring simple integration and minimal external components.

RF Transmitter Replacement Considerations

Consult official substitution lists for compatible EZRadioPRO transmitters. Verify frequency coverage and modulation support matches the original design requirements before swapping.