The MGA-31816 from Broadcom is a RF Amplifier with Frequency 1.5 to 4 GHz, Gain 18 to 21 dB, Noise Figure 1.6 dB, Output Power 19 to 20.7 dBm, Output Power 0.08 to 0.12 W. Tags: Surface Mount, Gain Block, Power Amplifier. More details for MGA-31816 can be seen below.