LX5509LQ Datasheet PDF - Microsemi

●The LX5509 is a power amplifier optimized for 802.11a/n/ac applications in the 5.15-5.85 GHz frequency range. The LX5509 includes a three-stage PA, active bias, input/output matching, and 2nd harmonic filter. The device is manufactured with an InGaP/GaAs Heterojunction Bipolar Transistor (HBT) IC process (MOCVD). It operates with a single positive voltage supply of 3.3V, and provides power gain of 28dB and output powers of 19 and 20.5dBm at 3.3V for 1.8 and 3% EVMs, respectively. The LX5509 also features an on-chip power detector to help reduce BOM cost and PCB space for implementation of power control in a typical wireless system. The LX5509 is available in a 20-pin 4mm x 4mm quad flat no lead package (QFN 4×4-20L). The compact footprint, low profile, and excellent thermal capability make the LX5509 an ideal solution for 802.11a/n/ac applications.