The BZP520GB4 from B&Z Technology is a RF Amplifier with Frequency 500 MHz to 20 GHz, Gain 17 to 22 dB, Gain Flatness ±1.5 dB, Noise Figure 2.5 to 3.7 dB, Output Power 13 to 14 dBm. Tags: Low Noise Amplifier. More details for BZP520GB4 can be seen below.