The MAX2689 from Maxim Integrated is a RF Amplifier with Frequency 1575.42 MHz, Power Gain 11.8 to 15 dB, Noise Figure 1.2 dB, Output Power -8.9 dBm, Output Power 0.0001 W. Tags: Surface Mount, Low Noise Amplifier. More details for MAX2689 can be seen below.