Front End Module For Wi-Fi 5 (802.11ac) Systems: QPF4219
Qorvo offers the QPF4219 integrated front end module (FEM) for Wi-Fi 5 (802.11ac) systems. The QPF4219 integrates a 2.4 GHz power amplifier (PA), regulator, single pole two throw switch (SP2T), bypassable low noise amplifier (LNA) and DC power detector into a single device. With a compact form factor and integrated matching, this module minimizes the layout area required for its application.
The QPF4219’s PA is optimized for a 5V supply voltage that conserves power consumption while maintaining the highest linear output power and leading-edge throughput. Receive path matches the optimal technologies to maximize Rx sensitivity through noise figure performance that is consistent over a wider variety of conditions. The receive path is pinned out so external filtering can be added in the optimal position. Also included are integrated die level filtering for 2nd and 3rd harmonics as well as 5 GHz rejection for DBDC operation.
For more features and specifications on the QPF4219, download the datasheet.