The MGA-684P8 from Broadcom is a RF Amplifier with Frequency 1.5 to 4 GHz, Gain 16.1 to 19.1 dB, Noise Figure 0.8 to 0.56 dB, Output Power 22 dBm, Output Power 0.16 W. Tags: Surface Mount, Low Noise Amplifier. More details for MGA-684P8 can be seen below.