The QPF7219 is an integrated front end module (iFEM) designed for Wi-Fi 6 (802.11ax) systems. It integrates a 2.4 GHz power amplifier (PA) with power detector, FCC bandedge BAW filter, regulator, transmit-receive switch (SPDT) and bypassable low noise amplifier (LNA) into a single device.
The PA is optimized for a 5 V supply voltage that conserves power consumption while maintaining the highest linear output power of 25 dBm and leading edge throughput across all Wi-Fi channels 1 through 11, incompliance with the FCC regulatory limits. On the Rx side the FEM provides a gain of 15.5 dB with a noise figure of 2 dB.
The receive path is pinned out so external filtering can be added in the optimal position. The device has integrated die level filtering for 2nd and 3rd harmonics as well as 5 GHz rejection for DBDC operation. It is available in a 5 x 3 mm LGA package and is ideal for access points, wireless routers, residential gateways and IoT applications.
