The QPA9942 from Qorvo is a RF Amplifier with Frequency 3.3 to 3.8 GHz, Gain 28 to 31 dB, Output Power 34 to 35.3 dBm, Output Power 2.51 to 3.39 W, Linear Power 28 dBm. Tags: Surface Mount, Power Amplifier. More details for QPA9942 can be seen below.