The ABA-53563 from Broadcom is a RF Amplifier with Frequency 3.5 GHz, Gain 20 to 21.5 dB, Gain Flatness 0.6 to 2.7 dB, Noise Figure 3.5 to 4 dB, Output Power 12.7 dBm. Tags: Surface Mount, Gain Block, Power Amplifier. More details for ABA-53563 can be seen below.