The CMX90B701 from CML Microcircuits is a RF Amplifier with Frequency 17 to 23 GHz, Small Signal Gain 17.2 to 18.2 dB, Gain Flatness ±1 dB, Noise Figure 4 dB, P1dB 0.006 W. Tags: Surface Mount, Gain Block Amplifier. More details for CMX90B701 can be seen below.