2.4 GHz, 256 QAM WLAN Front-End Module

The SKY85319-11 is a complete 2.4 GHz 802.11ax WLAN RF front-end module (FEM). The device provides all the functionality of a fully matched power amplifier (PA), power detector, low-noise amplifier (LNA), and single-pole, double-throw (SPDT) switch.

The SKY85319-11 provides a complete 2.4 GHz WLAN RF solution from the output of the transceiver to the antenna, and from the antenna to the input of the transceiver. The LNA increases the receive sensitivity of embedded solutions to improve range or to overcome the insertion loss of cellular filters (often included for mobile applications).

The SKY85319-11 also includes a transmitter high dynamic-range power detector with 20 dB of dynamic range, and a digital enable control for transmitter power ramp on/off control.

The device is provided in an ultra-compact, 16-pin 3 x 3 mm laminate package.


    • Integrated high-performance 2.4 GHz PA, harmonic filter, LNA with bypass, and T/R switch
    • Fully matched input and output
    • LNA with integrated bypass mode
    • High performance SPDT switch to support WiFi functions
    • Integrated positive slope power detector
    • Transmit gain: 32 dB
    • Receive gain: 14 dB
    • Small 16-pin, 3 × 3 mm laminate package (MSL3, 260 °C per JEDEC J-STD-020)

Images & Diagrams


    • Frequency (GHz) Min.
    • 2.4
    • Frequency (GHz) Max.
    • 2.5
    • RF Frequency (MHz)
    • Typ. POUT @ 2.5% EVM (dBm)
    • Typ. Current @ VCC = 3.3 V (mA)
    • 802.11 WLAN Standard
    • ax
    • Antenna Ports
    • Architecture
    • 2.4 GHz, 256 QAM WLAN Front-End Module
    • Typ. Current @ VDD = 3.3 V 17.5dBm (mA)
    • Typ. POUT @ 3.0% EVM (dBm)
    • Typ. Current @ VCC = 5 V (mA)
    • Typ. Tx Gain (dB)
    • 32
    • VDD (V)
    • Package
    • QFN, 16-pin
    • Package (mm)
    • 3 x 3

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