RFX8422S

2.4 GHz CMOS WLAN / Bluetooth RFeIC with PA, LNA with Bypass, and SP3T Switch

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

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 combined 802.11b/g/n and Bluetooth applications operating 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. 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.

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Description2.4 GHz CMOS WLAN / Bluetooth RFeIC with PA, LNA with Bypass, and SP3T Switch

Rx Insertion Loss (dB) Typ.10 / 1.2

802.11 WLAN Standardb/g/n

Rx Gain (dB) Typ.10

Tx Gain (dB)25

Rx NF (dB) Typ.3.3

Saturated Output Power (dBm) Typ.24

Supply Voltage (V)3.3-4.8

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 applications
High-linearity PA for 802.11 b/g/n WLAN
Simultaneous WLAN and Bluetooth 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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