[原创] ADI ADRF5547双通道RF(3．7－5．3 GHz)前端解决方案

ADI公司的ADRF5547是双通道集成RF前端多芯片模块,工作频率3.7- 5.3 GHz,具有2 级 LNA 和高功率 SPDT 开关,片内偏置和匹配,单电源供电,高增益模式4.6 GHz 时为 33 dB(典型值),低增益模式4.6 GHz 时为 18 dB(典型值),噪声指数高增益模式时4.6 GHz 时为 1.6 dB(典型值),低增益模式4.6 GHz 时为1.6 dB(典型值),LTE 平均功率 (9 dB PAR)为40 dBm,OIP3为31 dBm(典型值),插入损耗4.6 GHz 时为 0.5 dB(典型值),高增益模式电源电流5 V 时为 86 mA(典型值),低增益模式电源电流5 V 时为 36 mA(典型值),关断模式电源电流5 V 时为 12 mA(典型值).正逻辑控制,主要用在无线基础设备,TDD多输入和多输出(MIMO)和有源天线系统,基于TDD的通信系统.本文介绍了ADRF5547主要特性,功能框图, 应用电路图,评估板ADRF5547-EVALZ主要特性,测试建立图,电路图,材料清单和PCB装配图.

The ADRF5547 is a dual-channel, integrated RF, front end multichip module designed for time division duplexing (TDD) applications that operates from 3.7 GHz to 5.3 GHz. The ADRF5547 is configured in dual channels with a cascading two-stage low noise amplifier (LNA) and a high power silicon, single-pole, double-throw (SPDT) switch.

In high gain mode, the cascaded, two-stage LNA and switch offer a low noise figure of 1.6 dB and high gain of 33 dB at 4.6 GHz with an output third order intercept point (OIP3) of 31 dBm (typical).
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