ADL5570-EVALZ:  2.3 GHz to 2.4 GHz WiMAX Power Amplifier

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.

The ADL5570 RF input is matched on-chip and provides an input return loss of less than −10 dB. The open-collector output is externally matched with strip-line and external shunt capacitance.

The ADL5570 operates over a supply voltage range from 3.2 V to 4.2 V with a supply current of 440 mA burst rms when delivering 25 dBm (3.5 V supply). A low power mode is also available for operation at power levels of ≤10 dBm with optimized operating and quiescent currents of 100 mA and 70 mA, respectively. A standby mode is available that reduces the quiescent current to 1 mA, which is useful when a TDD terminal is receiving data.

The ADL5570 is fabricated in a GaAs HBT process and is packaged in a 4 mm × 4 mm, 16-lead, Pb-free RoHS-compliant LFCSP that uses an exposed paddle for excellent thermal impedance. It operates from −40°C to +85°C.

ADL5570-EVALZ 特点
ADL5570-EVALZ 功能框图

芯片引脚定义图

ADL5570-EVALZ 技术指标
Frequency Range (MHz) 2300 to 2400 Package 16-Lead LFCSP
Gain (dB) 29dB 1 dB Comp Point (dBm) 31
Supply Current 100mA    
ADL5570 订购指南
产品型号 产品状态 封装 引脚 温度范围
ADL5570-EVALZ 量产 评估板   工业
ADL5570ACPZ-R7 量产 16 ld LFCSP (4x4x.85mm, 2.10mm exposed pad) 16 工业
ADL5570-EVALZ 应用技术支持与电子电路设计开发资源下载
  1. RF放大器和IF放大器系列ADL5570 数据手册DataSheet 下载 . pdf
  2. ADI 模拟器件公司比较器产品选型指南 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf