LX5551

www.DataSheet4U.com TM ® LX5551 2.4-2.5 GHz Front-End Module with Internally Matched Power Amplifier & SPDT for 11b/g/n P RODUCTION D ATA S HEET DESCRIPTION KEY FEATURES WWW . Microsemi . C OM LX5551 is a high-performance WLAN front-end module (FEM) for 802.11b/g/n and other applications in the 2.4-2.5GHz frequency range. LX5551 integrates an advanced InGaP/GaAs Heterojunction Bipolar Transistor (HBT) power amplifier with both input/output impedance matching, and an InGaAs pseudomorphic HEMT (pHEMT) switch, into a single 3x3mm package. The Tx path of LX5551 features a two-stage monolithic microwave integrated circuit (MMIC) power amplifier with active bias circuitry, and 50 Ω input/output matching inside the package. With 3.3V supply voltage and 90mA nominal bias current, the Tx path provides 27dB gain and +18dBm linear output power, with extremely low total EVM (<3%) for 64QAM/54Mbps OFDM. Both gain and power are readily measured at antenna port, with switch insertion loss included. The Rx path of LX5551 includes a low-cost SPDT switch with excellent insertion loss and isolation. It features a very low Tx-to-Rx port leakage in receive mode. LX5551 is available in a 16-pin, 3x3mm micro-lead package (MLPQ16L). With its best-class performance and compact footprint, LX5551 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 implementation. ƒ 2.4-2.5GHz 11b/g/n Front-End Solution i...