The BGA2817 from NXP Semiconductors is a RF Amplifier with Frequency 0.25 to 2.15 GHz, Gain 23 to 25.9 dB, Noise Figure 3.8 to 4.4 dB, Output Power 4 to 8 dBm, Output Power 0.003 to 0.006 W. Tags: Surface Mount, Power Amplifier. More details for BGA2817 can be seen below.