The RFDA0057 from Qorvo is a RF Amplifier with Frequency 400 MHz to 2.7 GHz, Gain 18.5 dB, Noise Figure 7 dB, P1dB 19 dBm, P1dB 0.079 W. Tags: Surface Mount, Digital Variable Gain Amplifier, Power Amplifier. More details for RFDA0057 can be seen below.