The QPF7219, made by Qorvo, is an integrated front-end module designed for Wi-Fi 6 (802.11ax) systems. It integrates a 2,4 GHz power amplifier (PA) with power detector, BAW filter, regulator, transmit-receive switch (SPDT) and bypassable low-noise amplifier (LNA) into a single device.
The PA is optimised for a 5 V supply voltage that conserves power consumption while maintaining high linear output power of 25 dBm and high throughput across all Wi-Fi channels 1 through 11. On the receiver side, the device 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.
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