SI4438-B1C-FM - Silicon Labs

Manufacturer Part Number

SI4438-B1C-FM

Manufacturer

Energy Micro (Silicon Labs)

Introduction

Energy Micro (Silicon Labs) SI4438-B1C-FM is a high-performance RF transceiver IC designed for use in sub-GHz ISM band applications.

Product Features and Performance

Frequency range: 425MHz to 525MHz

Supports various modulation schemes: FSK, GFSK, GMSK, OOK

Maximum data rate: 500kbps

Receiver sensitivity: -124dBm

Transmit power: up to 20dBm

Low current consumption: 14mA in receive mode, 75mA in transmit mode

Operates over a wide temperature range: -40°C to 85°C

Integrated 4 GPIO pins for flexible configuration

Product Advantages

High performance and energy-efficient design

Broad frequency range and modulation support

Compact 20-QFN (4x4) package

Flexible GPIO interface for customization

Key Technical Parameters

Voltage supply: 1.8V to 3.6V

20-VFQFN Exposed Pad package

Surface mount design

Quality and Safety Features

RoHS compliant

Tray packaging

Compatibility

Suitable for use in various sub-GHz ISM band applications, including industrial, scientific, and medical (ISM) equipment, wireless sensor networks, and remote control systems.

Application Areas

Industrial automation

Smart home and building automation

Wireless sensor networks

Remote control and monitoring systems

Product Lifecycle

The SI4438-B1C-FM is an active product in the Energy Micro (Silicon Labs) portfolio. Replacement or upgrade options may be available in the future, but the current model is widely supported.

Key Reasons to Choose This Product

High-performance RF transceiver with a wide frequency range and modulation support

Low power consumption for energy-efficient applications

Compact package and flexible GPIO interface for easy integration

Proven reliability and RoHS compliance for industrial and commercial applications

Broad compatibility with sub-GHz ISM band systems