The MGA-31589 from Broadcom is a RF Amplifier with Frequency 450 MHz to 1.5 GHz, Gain 19.5 to 22 dB, Noise Figure 1.9 dB, Output Power 26.3 to 27.2 dBm, Output Power 0.43 to 0.52 W. Tags: Surface Mount, Gain Block, Power Amplifier. More details for MGA-31589 can be seen below.