RFX8422S

2.4 GHz CMOS WLAN RF Front-end Integrated Circuit with PA, LNA with Bypass, and SP3T Switch for WLAN and Bluetooth® Signal Function

Please note: RFX8422S is being discontinued and is not recommended for new designs.

The RFX8422S is a fully integrated, single-chip, single-die RF front-end integrated circuit (RFeIC®) that incorporates all the RF functionality needed for dual-mode WLAN and Bluetooth® signal functions including simultaneous WLAN and Bluetooth® signal receive mode.

The RFX8422S architecture integrates a high-efficiency high-linearity PA, a directional coupler and output power detector, impedance matching networks, harmonic filters, a LNA with Bypass and an SP3T antenna switch all in a single CMOS device.

This RFeIC is designed to be used in the 2.4 GHz band, and can be powered directly from the battery.

Combining superior performance, ultra-low power consumption, small form factor, and low cost, RFX8422S is the perfect solution for mobile, handheld, and portable devices with integrated WLAN and Bluetooth® functions.

The RFX8422S is assembled in the ultra-compact 2.5 x 2.5 x 0.45 mm 16L QFN package, and requires minimal external components and PCB footprint.

Data Sheets

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Specifications

Product LifecycleLast Time Buy

Architecture2.4 GHz CMOS WLAN RF Front-end Integrated Circuit with PA, LNA with Bypass, and SP3T Switch

802.11 WLAN Standardb/g/n

Typ. Tx Gain (dB)25

PackageQFN, 16L

Package (mm)2.5 x 2.5 x 0.45

Frequency (GHz) Min.2.4

Frequency (GHz) Max.2.5

Antenna Ports1

Features

Combines 802.11b/g/n and Bluetooth® signal functions
High-linearity PA for 802.11 b/g/n WLAN
For simultaneous WLAN and Bluetooth® signal receive mode
Low noise figure WLAN receive LNA with bypass for near range operation
Supports direct battery operation
Built in directional coupler-based output power detector
ESD protection circuitry on all ports
DC decoupled RF ports and VDD/RF isolation
Small outline 16L QFN package (16-lead, 2.5 x 2.5 x 0.45 mm) package with exposed ground pad

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