The BR9554FD is a wideband MMIC low noise amplifier in QFN16 package. It has been internally matched to 50 ohms and only requires an external RF choke and blocking/bypass capacitors. At 1.8GHz, the amplifier typically offers a gain of 15.4dB, a noise figure of 2.2dB, an output P1dB of 20.9dBm, and an output IP3 of 36.6dBm under the condition of +5V supply power, which is well suitable for application with high gain flatness, high linearity and low noise.