The ASF140 from ASB Inc. is a RF Amplifier with Frequency 70 to 900 MHz, Gain 15.8 to 17.4 dB, Noise Figure 2.3 to 2.5 dB, Output Power 15.5 to 19 dBm, Output Power 0.04 to 0.08 W. Tags: Chip, Power Amplifier. More details for ASF140 can be seen below.