The ASX401 from ASB Inc. is a RF Amplifier with Frequency 900 MHz to 2 GHz, Gain 10 to 19.5 dB, Noise Figure 4.2 to 4.5 dB, Output Power 28.5 to 30 dBm, Output Power 0.71 to 1 W. Tags: Chip, Power Amplifier. More details for ASX401 can be seen below.