The MGA-621P8 from Broadcom is a RF Amplifier with Frequency 0.7 to 1.5 GHz, Gain 18.5 to 20 dB, Noise Figure 0.67 to 1 dB, Output Power 21.8 dBm, Output Power 0.15 W. Tags: Surface Mount, Low Noise Amplifier. More details for MGA-621P8 can be seen below.