The QPF4532 from Qorvo is a Wi-Fi 6 (802.11ax) Front-End Module that operates from 5150 to 5850 MHz. It has an integrated 5 GHz power amplifier (PA), single pole two throw switch (SP2T), and bypassable low noise amplifier (LNA). The FEM delivers an output power of up to +25 dBm with a Tx gain of 31 dB and provides an Rx gain of 13.5 dB with a noise figure of 2 dB. The performance of this module is focused on optimizing the PA for a 3.3 V supply voltage that conserves power consumption while maintaining the highest linear output power and leading-edge throughput. It requires a DC supply of 5 V and has an integrated DC power detector that provides a voltage proportional to the output power from the transmit path.
The QPF4532 has to die level filtering for 2nd and 3rd harmonics and a 25 dB 2.4 GHz rejection path for DBDC operation. It is available in a 16-pad laminate package that measures 2.5 x 2.5 mm and is ideal for use in access points, wireless routers, residential gateways, customer premise equipment, and Internet of Things (IoT) applications.
