ADI公司的ADRF5519是双路2.3-2.8GHz 20W接收器前端,集成了RF前端多片模块,设计用于工作频率2.3GHz-2.8GHz的时分复接(TDD)应用. ADRF5519可配置成两路,有级联两级低噪音放大器(LNA)和功率硅单刀双掷(SPDT)开关.高增益模式,级联两级LNA和开关提供2.6GHz时的低噪音(NF)0.1dB和高增益35dB,输出三阶截断点(OIP3)32dB(典型值).
低增益模式,两级LNA的一个级旁路,提供较低电流36mA时的14dB增益.在降功耗模式,LNA关断,器件的功耗为12mA.发送时,RF输入连接到端引脚((ANT-CHA或ANT-CHB,分别连接到TERM-CHA或TERM-CHB).开关提供插入损耗0.5dB,处理LTE平均功率43dBm.器件有片上偏压和匹配,单电源工作.RoHS兼容,6 mm × 6 mm40引脚LFCSP封装.主要用在无线基础设备,TDD大规模多输入和多输出以及有源天线系统,基于TDD通信系统.本文介绍了ADRF5519主要特性和功能框图,电指标,以及评估板ADRF5519-EVALZ主要特性,测试建立图,电路图,材料清单和PCB装配图.
The ADRF5519 is a dual-channel, integrated RF, front-endmultichip module designed for time division duplexing (TDD)applications that operates from 2.3 GHz to 2.8 GHz. The
ADRF5519 is configured in dual channels with a cascading twostagelow noise amplifier (LNA) and a high power silicon singlepole,double-throw (SPDT) switch.
In high gain mode, the cascaded two-stage LNA and switch offer alow noise figure (NF) of 1.0 dB and a high gain of 35 dB at 2.6 GHzwith an output third-order intercept point (OIP3) of 32 dBm (typical).
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