The ASL21G from ASB Inc. is a RF Amplifier with Frequency 1.575 to 1.575 GHz, Small Signal Gain 21.5 to 24.0 dB, Noise Figure 0.7 to 0.75 dB, Output Power -3 dBm, Output Power 0.001 W. Tags: Chip, Low Noise Amplifier. More details for ASL21G can be seen below.