The CHA4220-QGG from United Monolithic Semiconductors is a RF Amplifier with Frequency 500 MHz to 20 GHz, Gain 17 dB, Noise Figure 3 dB, Output Power 20 to 23 dBm, Output Power 0.1 to 0.2 W. Tags: Surface Mount, Low Noise Amplifier, Driver Amplifier. More details for CHA4220-QGG can be seen below.