5 GHz 802.11a/n/ac Wi-Fi Front End Module

    Key Features

    • POUT = +17dBm, 802.11ac, VHT80 MCS9 at-35dB dynamic EVM
    • POUT = +18dBm, 802.11n, HT20/40 MCS7 at-30dB dynamic EVM
    • POUT = +21dBm, HT20 MCS0 at spectral mask compliance
    • 3.3V operation
    • RX gain = 12.5dB
    • Noise figure = 2.5dB
    • Bypass Loss = 5dB
    • Input and output matched to 50 ohm
    • Integrated 2.4GHz rejection filter

    The QPF8538 provides a complete integrated solution in a single front end module (FEM) for Wi-Fi 802.11a/n/ac systems. The small form factor and integrated matching minimizes layout area in the application and greatly reduces the number of external components.

    Performance is focused on a balance of efficiency to linear power that increases the range and throughput of connections. Control lines are reduced to a two-line control scheme.

    The QPF8538 integrates a 5GHz power amplifier (PA), single-pole two-throw switch (SP2T) and a low noise amplifier (LNA) with bypass. Integrated filtering includes 2nd and 3rd harmonic as well as 2.4GHz rejection for dual-band dual-concurrent operation. A DC power detector is integrated for application calibration enablement. The device is provided in a 2.3mm x 2.3mm x 0.0.63mm, 16-pin laminate package.

    Typical Applications

      • Wireless Routers
      • Access Points
      • Enterprise Client Access Points
      • Consumer Premise Equipment
      • Wireless Adapters
      • Internet of Things
    Frequency Min(GHz) 5.180
    Frequency Max(GHz) 5.925
    Functionality PA, Switch, LNA with bypass
    Wi-Fi Standards Wi-Fi 5
    Vcc(V) 3.3
    11ac Pout(dBm) 17
    11ac EVM(dB) -35
    11ac Current(mA) 210
    11n Pout(dBm) 18
    11n EVM(dB) -30
    11n Current(mA) 215
    Tx Gain(dB) 28
    OP1dB(dBm) 24
    Rx Gain(dB) 12
    Package Type Laminate MCM
    Package(mm) 2.3 x 2.3 x 0.63