The ASX403 from ASB Inc. is a RF Amplifier with Frequency 900 MHz to 2 GHz, Gain 11 to 16.5 dB, Noise Figure 4.5 to 4.7 dB, Output Power 29.5 to 30 dBm, Output Power 0.89 to 1 W. Tags: Chip, Power Amplifier. More details for ASX403 can be seen below.