DESCRIPTION
The LX5537 is a power amplifier optimized for 802.16e(WiMAX/WiBro) and 802.11b/g/n applications in the 2.3-2.7 GHz frequency range. The PA is implemented as a three-stage monolithic microwave integrated circuit (MMIC) with active bias, on-chip input matching and output pre-matching.
The device is manufactured with an InGaP/GaAs Heterojunction Bipolar Transistor (HBT) IC process (MOCVD). It operates with a single positive voltage supply of 3-4.2V, and provides power gain of 31dB and output powers of +23.5dBm at 3.6V and +25 dBm at 4.2V for 2.5% EVM in the 2.5-2.7GHz.

KEYFEATURES
● Advanced InGaP HBT
● 2.3-2.7GHz Operation
● Single-Polarity 3-4.2V Supply
● Power Gain ~ 31 dB or higher
● 23.5 dBm @2.5% EVM /3.6V
● 25 dBm @2.5% EVM /4.2V
● 24.5 dBm @4% EVM /3.6V
● 26 dBm @4% EVM /4.2V
● 22% Efficiency @24.5dBm/3.6V
● Optional 26dB Attenuation
● Complete On-Chip Input Match
● Simple Output Match for Optimal EVM
● Temperature-Compensated On-Chip Output Power Detector with Wide Dynamic Range
● Small Footprint: 3x3mm2
● Low Profile: 0.9mm

APPLICATIONS
● 802.16e WiMAX
● 802.16e WiBro
● 802.11b/g/n