QPL9547TR7

QPL9547TR7 is an ultra-low-noise amplifier from Qorvo in a DFN-8 2x2 mm package, covering 0.1 GHz to 6 GHz with 19.5 dB of gain and a 0.3 dB typical noise figure at 1.9 GHz, +39.3 dBm OIP3 and +22.7 dBm P1dB, operating from 5 V at 65 mA with a shutdown pin. A first-stage noise figure this low directly improves receiver sensitivity, and the high linearity preserves that sensitivity in crowded spectrum, which suits infrastructure radios, repeaters and high-performance receive chains. The shutdown pin lets power-sensitive designs idle the LNA between receive windows instead of burning current continuously. Selection advice: pick QPL9547TR7 when receive sensitivity around the 1 to 2 GHz region is the priority and board space is tight; check the datasheet for gain and noise figure at your exact band, and design the input match carefully, because at a 0.3 dB noise figure the surrounding passives noticeably affect the result. Parameters verified against Qorvo documentation.