LX5552LU

2.4-2.5 GHz的前端模块具有内部匹配功率放大器，低噪声放大器和SPDT开关 2.4-2.5 GHz Front-End Module with Internally Matched Power Amplifier, LNA & SPDT Switch

LX5552 is a high-integration, high performance WLAN front-end module FEM for 802.11b/g/n and other applications in the 2.4-2.5GHz frequency range. LX5552 integrates a fully matched InGaP/GaAs Heterojunction Bipolar Transistor HBT power amplifier, a low noise amplifier based on InGaAs Enhancement mode pseudo-morphic high electron mobility transistor E-pHEMT technology, and a low-cost Depletion mode pHEMT D-pHEMT single pole double throw SPDT antenna switch in a single package. The Tx path of LX5552 features a two-stage monolithic microwave integrated circuit MMIC power amplifier with active bias circuitry, on-chip output power detector, and 50? input/output matching inside the package. With 3.3V supply voltage and 80mA bias current, the Tx path provides about 26dB power gain and +17dBm linear output power, with low total EVM <3% for 64QAM/ 54Mbps OFDM. Both gain and power are readily measured at antenna port with the insertion loss of the Tx switch included. The Rx path of LX5552 features small-signal gain of 12.5dB, low noise figure of 2dB, and high input third order intercept point IIP3 of +5dBm with the insertion loss of the the Rx switch loss included. The LNA consumes about 10mA current with 3.3V supply voltage. LX5552 is available in a 16-pin, 3x3mm micro-lead package MLPQ-16L. With its high level of functional integration, best-class performance, compact footprint and low profile, LX5552 offers an ideal front-end solution for the ever demanding design requirements of today’s WLAN systems, including 802.11b/g and the latest 11n MIMO applications.