The PM2-21-0R640R72-6R0-23-15-SFF-TC from Quantic PMI (Planar Monolithics) is a RF Amplifier with Frequency 640 to 720 MHz, Gain 21 to 25 dB, Gain Flatness ± 0.4 to 0.6 dB, Noise Figure 5 to 6 dB, P1dB 23 dBm. Tags: Surface Mount, Low Noise Amplifier. More details for PM2-21-0R640R72-6R0-23-15-SFF-TC can be seen below.