The MGA-52543 from Broadcom is a RF Amplifier with Frequency 400 MHz to 6 GHz, Gain 13 to 18 dB, Noise Figure 1.8 to 2.3 dB, Output Power 17.4 to 18 dBm, Output Power 0.05 to 0.06 W. Tags: Surface Mount, Low Noise Amplifier. More details for MGA-52543 can be seen below.