The CHA4102-QEG from United Monolithic Semiconductors is a RF Amplifier with Frequency 2 to 4 GHz, Gain 20 dB, Output Power 23.5 dBm, Output Power 0.22 W, P1dB 23.5 dBm. Tags: Surface Mount, Variable Gain Amplifier. More details for CHA4102-QEG can be seen below.