RFX8425

RF Front End (LNA + PA) Overview

The RFX8425 is a CMOS-based single-chip RF front-end integrated circuit designed for dual-mode 2.4 GHz WLAN and Bluetooth applications. It integrates a power amplifier, low-noise amplifier, SP3T switch, and bypass functionality on a single die. The device supports IEEE 802.11b/g/n and Bluetooth protocols within the 2.4 GHz frequency range. Key electrical specifications include a P1dB output power of 19 dBm and an IIP3 of 26 dBm. The unit operates at a supply voltage of 3.3 V and features a compact 16-lead QFN package measuring 3x3 mm.

RF Front End (LNA + PA) Feature Summary

• Integrates complete RF front-end functions including PA, LNA, and SP3T switch on a single CMOS die
• Supports simultaneous operation for 2.4 GHz WLAN and Bluetooth dual-mode systems
• Includes dedicated bypass path to optimize signal routing and system flexibility

RF Front End (LNA + PA) Applications

• 2.4 GHz Wi-Fi routers and access points
• Bluetooth-enabled wireless peripherals
• Dual-mode WLAN/Bluetooth USB adapters
• IoT devices requiring combined connectivity

RF Front End (LNA + PA) Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package integrity and lead condition prior to assembly. Ensure compliance with RoHS directives as indicated in the product documentation. Cross-reference ordering part numbers with distributor catalogs to avoid variant mismatches during procurement.

RF Front End (LNA + PA) Selection Notes

Select this component for designs requiring integrated transmission and reception paths in compact form factors. Evaluate thermal performance due to single-die integration. Consider interface compatibility with baseband controllers. Verify that the 3.3 V supply aligns with system power architecture. Assess footprint constraints against the 3x3 mm QFN dimensions.

RF Front End (LNA + PA) Part Context

This component belongs to Skyworks' portfolio of integrated radio frequency solutions targeting wireless connectivity markets. It consolidates multiple discrete RF components into a unified module, reducing board space and simplifying design complexity for manufacturers developing multi-standard communication devices.

RF Front End (LNA + PA) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.