SI4463-B1B-FMR

RF Transceiver ICS Overview

The SI4463-B1B-FMR is a sub-GHz RF transceiver from Silicon Labs, operating within the 119 MHz to 1.05 GHz frequency range. It supports data rates up to 1 Mbps and delivers a maximum output power of +20 dBm. The device features a sensitivity of -126 dBm and operates on a supply voltage between 1.8 V and 3.6 V. Receive current ranges from 10.7 mA to 13.7 mA, while transmit current is between 70 mA and 85 mA. It utilizes an SPI interface and is housed in a 20-VFQFN exposed pad package.

RF Transceiver ICS Feature Summary

• Supports multiple modulation formats including GFSK, GMSK, 4GFSK, and OOK for versatile communication protocols.
• Integrates a high-performance transmitter with excellent efficiency and up to +20 dBm output power.
• Features low-current operation suitable for battery-powered applications across a wide temperature range.

RF Transceiver ICS Applications

• Industrial, Scientific, and Medical (ISM) band wireless communications
• Remote control systems operating at frequencies such as 868 MHz
• Low-power sensor networks requiring robust sub-GHz connectivity

RF Transceiver ICS Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified partners. Confirm that the received part matches the specific suffix FMR for reel packaging. Check for recent Product Change Notifications regarding assembly sites or labeling updates to ensure compliance with current manufacturing standards before integration into production.

RF Transceiver ICS Selection Notes

Select this model for designs requiring a single-chip solution for sub-GHz ISM bands with high output power capabilities. Ensure the application environment stays within the specified -40°C to 85°C operating temperature range. Verify that the host microcontroller supports the required SPI interface timing and GPIO configurations for proper initialization and control of the transceiver functions.

RF Transceiver ICS Part Context

This component belongs to the Si446x family of wireless transceivers, which are designed for high performance and low current consumption. The Si4463 variant specifically targets general ISM applications below 1 GHz. It shares architectural similarities with other members like the Si4464 but may differ in specific frequency coverage or regulatory certifications depending on the exact suffix configuration.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers: None identified in official documentation.