High Efficiency, Low Distortion Amplifier from Qorvo GaAs pHEMT/MESFET Amplifier: QPA4428 May 13, 2021 RFMW 0 Comments The Qorvo QPA4428 75 ohm push-pull RF amplifier delivers over 28 dB of flat gain with low, 4.5 dB noise for broadband CATV hybrid modules.Read More