RFFM4551

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

    Key Features

    • 3.3V Operation
    • POUT = +17.0dBm at 3.3V, 802.11ac MCS9 HT80 at 1.8% Dynamic EVM Compliance
    • POUT = +18.0dBm at 3.3V, 802.11n MCS7 HT20/40 at 3.0% Dynamic EVM Compliance
    • POUT = +19.0dBm at 3.3V, MCS0 HT20, HT40, and HT80 at Spectral Mask Compliance
    • Integrated 2nd and 3rd Harmonic filters & Integrated out of band rejection filters.
    • Integrated RX notch filter @ 2.5GHz for DBDC operation.

    The RFFM4551 provides a complete integrated solution in a single front end module (FEM) for Wi-Fi 802.11a/n/ac systems. The ultra-small factor and integrated matching minimizes layout area in the customer's application and greatly reduces the number of external components. Performance is focused on linear output power under a number of conditions including duty cycle and packet length while balancing power consumption needs of leading edge device platforms. This simplifies the total front end solution by reducing the bill of materials, system footprint, and manufacturing cost.

    The RFFM4551 integrates a 5GHz power amplifier (PA), single pole two throw switch (SP2T) and an LNA with bypass. Also this FEM includes integrated 2nd and 3rd Harmonic filters and integrated out of band rejection filters. The device is provided in a 3.0mm x 3.0mm x 1.0mm, 16-pin laminate package. This module meets or exceeds the RF front end needs of IEEE 802.11a/n/ac Wi-Fi RF systems.

    Frequency Min(GHz) 4.9
    Frequency Max(GHz) 5.925
    Functionality PA, Switch, LNA with bypass
    Wi-Fi Standards a/n/ac
    Vcc(V) 3.3
    11ac Pout(dBm) 17
    11ac EVM(dB) 3.3
    11ac Current(mA) 260
    11n Pout(dBm) 18
    11n EVM(dB) 2.5
    11n Current(mA) 330
    Tx Gain(dB) 31
    Rx Gain(dB) 14
    NF(dB) 2.5
    Bypass Loss(dB) -6
    Rx Current(mA) 12
    Package Type Laminate
    Package(mm) 3.0 x 3.0 x 0.975
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN 5A991.G

    This product appears in the following application block diagrams:

    • Applications > Customer Premises Equipment > Dual Band Wi-Fi

      Dual Band Wi-Fi

    • Applications > Customer Premises Equipment > Dual Band Wi-Fi with Diplexer

      Dual Band Wi-Fi with Diplexer

    • Applications > Customer Premises Equipment > Wi-Fi Adapter

      Wi-Fi Adapter