2.4 GHz WLAN Front-End Module

The SKY85333-11 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 high-gain lownoise 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 25 dB of dynamic range. A digital pre-distortion (DPD) coupler is provided to further improve the linearity of the FEM.

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


Product LifecycleIn Production
Frequency (GHz) Min.2.4
Frequency (GHz) Max.2.5
Antenna Ports1
802.11 WLAN Standardax
Architecture2.4 GHz WLAN Front-End Module
PackageLGA, 24-pin
Package (mm)3 x 5 x 0.85


  • Integrated high-performance 2.4 GHz PA, LNA with bypass, and T/R switch
  • Fully matched input and output
  • Integrated power detector and directional coupler
  • Transmit gain: 33 dB
  • Receive gain: 16 dB
  • Output power: +28 dBm, MCS0
  • Small LGA (24-pin, 3 x 5 mm) package (MSL3, 260 °C per JEDEC J-STD-020)

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