The HMC589A from Analog Devices is a RF Amplifier with Frequency DC to 4 GHz, Gain 21 dB, Power Gain 13 to 21 dB, Noise Figure 4 to 4.5 dB, Output Power 19 dBm. Tags: Surface Mount, Gain Block, CATV Amplifier. More details for HMC589A can be seen below.