RFX2401C

RF Front End (LNA + PA) Overview

The RFX2401C is a fully integrated single-chip RF front-end IC designed for the 2.4 GHz ISM band, supporting IEEE 802.15.4 and ZigBee protocols. It operates on a 3.3 V supply voltage within a temperature range of -40°C to +125°C. The device features an integrated power amplifier delivering up to +22 dBm output power and a low-noise amplifier with a 2.5 dB noise figure. Packaged in a compact 16-pin QFN (3x3 mm) format, it includes transmit/receive switching, matching networks, and harmonic filtering.

RF Front End (LNA + PA) Feature Summary

• Integrates power amplifier, low-noise amplifier, and transmit/receive switching circuits into a single CMOS package
• Provides high linearity for OQPSK modulation standards to ensure signal integrity
• Includes complete on-board matching and decoupling circuits to simplify design implementation
• Features simple low-voltage CMOS control logic for easy interface with transceivers

RF Front End (LNA + PA) Applications

• ZigBee extended range devices and smart power systems
• Wireless sensor networks and home automation
• Industrial automation and wireless audio systems
• 2.4 GHz wireless microphone and teaching voice systems

RF Front End (LNA + PA) Procurement Notes

Verify component authenticity through authorized Skyworks distributors or certified agents. Confirm RoHS compliance status and check for recent Process Change Notices regarding assembly or epoxy modifications. Ensure storage conditions meet moisture sensitivity level requirements prior to surface mount placement. Validate that the specific order suffix matches the required packaging format for your production line.

RF Front End (LNA + PA) Selection Notes

Select this component when designing for 2.4 GHz ISM bands requiring high output power and sensitivity. It is suitable for applications needing simplified RF layout due to integrated matching networks. Consider the 16-QFN package constraints for thermal management and ground plane requirements. Ensure the host transceiver supports the necessary CMOS control signals for TX/RX switching.

RF Front End (LNA + PA) Part Context

This part belongs to the RFX2401 series of RF front-end modules. It is specifically engineered for short-range wireless communication standards operating in the 2.4 GHz to 2.5 GHz frequency range. The device represents a solution for integrating PA and LNA functions without external discrete components, reducing bill of materials complexity.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications if considering alternative vendors. Consult Skyworks official resources for potential obsolescence notices or recommended upgrades.