The MGA-71543 from Broadcom is a RF Amplifier with Frequency 0.1 to 6 GHz, Gain 14.4 to 17.4 dB, Noise Figure 0.7 to 1.1 dB, Output Power 3 to 15.5 dBm, Output Power 0.002 to 0.04 W. Tags: Surface Mount, Low Noise Amplifier. More details for MGA-71543 can be seen below.