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SKY85331-11

2.4 GHz High-Power 802.11ax WLAN Front-End Module

The SKY85331-11 is a highly integrated, 2.4 GHz front-end module (FEM) incorporating a 2.4 GHz single-pole, double-throw (SPDT) transmit/receive (T/R) switch, a 2.4 GHz low-noise amplifier (LNA) with bypass, and a 2.4 GHz power amplifier (PA) intended for high-power 802.11ax applications and systems.

The LNA and PA disable functions ensure low leakage current in the off mode. An integrated logarithmic power detector is included to provide closed-loop power control over 20 dB of dynamic range.

The device is provided in a compact 24-pin 3 x 5 mm conformally shielded Land Grid Array (LGA) package, which may reduce the front-end board space by more than 50 percent.

Product Summary

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Specifications

Product LifecycleIn Production

Frequency (GHz) Min.2.4

Frequency (GHz) Max.2.5

802.11 WLAN Standardax

Antenna Ports1

ArchitectureWLAN Front-End Module

Typ. P_OUT @ 3.0% EVM (dBm)26

Typ. Current @ V_CC = 5 V (mA)470

Typ. Tx Gain (dB)33

V_DD (V)5

PackageQFN, 24-pin

Package (mm)3 x 5 x 0.85

Features

Integrated high-performance 2.4 GHz PA, LNA with bypass, and T/R switch
Fully matched input and output
Integrated logarithmic power detector
Transmit gain: 33 dB
Supports 802.11ax: output power:
- +20 dBm, -43 dB DEVM, MCS11
- +22 dBm, -40 dB DEVM, MCS11
- +24 dBm, -35 dB DEVM, MCS9
Integrated, temperature-compensated log detector
High LNA gain: 15 dB
Small (24-pin, 3 x 5 mm) conformally shielded package (MSL3, 260 °C per JEDEC J-STD-020)

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