
Analog Devices
GENERAL DESCRIPTION
The ADL5570 is a high linearity 2.3 GHz to 2.4 GHz power amplifier designed for WiMAX terminals using TDD operation at a duty cycle of 31%. With a gain of 29 dB and an output compression point of 31 dBm at 2.35 GHz, it can operate at an output power level up to 26 dBm while maintaining an EVM of ≤3% (OFDM 16 or 64 QAM) with a supply voltage of 3.5 V. PAE is 20% @ POUT = 25 dBm.
FEATURES
Fixed gain of 29 dB
Operation from 2.3 GHz to 2.4 GHz
EVM ≤ 3% at POUT = 25 dBm with 16 QAM OFDMA
Input internally matched to 50 Ω
Power supply: 3.2 V to 4.2 V
Quiescent current
130 mA in high power mode
70 mA in low power mode
Power-added efficiency (PAE): 20%
Multiple operating modes to reduce battery drain
Low power mode: 100 mA
Standby mode: 1mA
Sleep mode: <1 μA
APPLICATIONS
WiMAX/WiBro mobile terminals