The CHA4107-QDG from United Monolithic Semiconductors is a RF Amplifier with Frequency 4.5 to 6.5 GHz, Small Signal Gain 22.5 dB pk-pk, Output Power 25.5 dBm, Output Power 0.35 W, P1dB 25.5 dBm. Tags: Surface Mount, Power Amplifier. More details for CHA4107-QDG can be seen below.