SI4468-A2A-IM

RF Transceiver ICS Overview

The SI4468-A2A-IM is a high-performance, low-current RF transceiver from Silicon Labs covering sub-GHz bands from 142 MHz to 1.05 GHz. It supports modulation formats including FSK, GFSK, GMSK, MSK, and OOK with a maximum data rate of 1 Mb/s. The device operates on a supply voltage ranging from 1.8 V to 3.8 V, delivering up to +20 dBm output power. Key electrical parameters include a receive sensitivity of -133 dBm, receive current of 13.7 mA, and transmit current of 88 mA. It features an SPI interface and is housed in a QFN-20 package, operating within a temperature range of -40°C to +125°C.

RF Transceiver ICS Feature Summary

• Supports IEEE 802.15.4 standards for sub-GHz networking solutions
• Provides excellent adjacent channel selectivity for narrow band applications
• Integrates highly configurable packet handler with TX and RX FIFOs
• Includes auto frequency and gain control (AFC and AGC) capabilities

RF Transceiver ICS Applications

• IEEE 802.15.4g WMBus smart metering
• Industrial, Scientific, and Medical (ISM) equipment
• Low-power wireless sensor networks
• Alarm systems and remote keyless entry

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'A2A' against the manufacturer's latest documentation to ensure correct silicon revision and errata compliance. Confirm that the QFN-20 package type matches the target PCB footprint requirements. Cross-reference the operating temperature range and voltage specifications with system constraints before finalizing the procurement order.

RF Transceiver ICS Selection Notes

Select this component for designs requiring high integration and low active current consumption in sub-GHz applications. The built-in MCU support and standard-compliant features simplify development for IoT and industrial protocols. Ensure the design accommodates the required antenna diversity or T/R switch control if utilizing advanced RF performance modes.

RF Transceiver ICS Part Context

This part belongs to the Si446x family of EZRadioPRO transceivers. These devices are designed for high reliability and flexibility in wireless communication systems. The A2A suffix typically denotes a specific hardware revision or configuration variant within the broader product line, ensuring compatibility with established firmware libraries and reference designs.

RF Transceiver ICS Replacement Considerations

Direct substitutes within the same series include SI4468-A2A-IMR for tape-and-reel packaging. Other family members like SI4463 or SI4464 may offer similar functionality but differ in frequency coverage or pinout; verify datasheet compatibility before substitution.