The QPF4200 from Qorvo is an integrated front end module (FEM) for Wi-Fi 802.11ax systems. It integrates a 2.4 GHz power amplifier (PA), regulator, SPDT switch, bypassable low noise amplifier (LNA) and DC power detector into a single device. It has a compact form factor and integrated matching minimizes layout area in the application. The performance of the device is focused on optimizing the PA for a 5 V supply voltage that conserves power consumption while maintaining the highest linear output power and leading edge throughput. The receive path matches the optimal technologies to maximize Rx sensitivity through noise figure performance that is consistent over a wider variety of conditions. Integrated die level filtering for 2nd and 3rd harmonics, as well as 5 GHz rejection for DBDC operation, are included.
