The ABA-52563 from Broadcom is a RF Amplifier with Frequency 3.5 GHz, Gain 20 to 21.5 dB, Gain Flatness 0.5 to 2.1 dB, Noise Figure 3.3 to 4 dB, Output Power 9.8 dBm. Tags: Surface Mount, Gain Block, Power Amplifier. More details for ABA-52563 can be seen below.