The BGU8309 from NXP Semiconductors is a RF Amplifier with Frequency 1.559 to 1.61 GHz, Gain 17 dB, Noise Figure 0.7 dB, Output Power -9 dBm, Output Power 0.0001 W. Tags: Surface Mount, Low Noise Amplifier. More details for BGU8309 can be seen below.