The BGA2874 from NXP Semiconductors is a RF Amplifier with Frequency 0.25 to 0.75 GHz, Gain 29.9 to 31.7 dB, Noise Figure 2.6 to 3.8 dB, Output Power 3 to 7 dBm, Output Power 0.002 to 0.005 W. Tags: Surface Mount, Power Amplifier. More details for BGA2874 can be seen below.