ADI ADMV101424－44 GHz宽带微波下变频器解决方案

ADI公司的ADMV1014是采用硅锗(SiGe)设计的宽带微波下变频器,针对点到点微波无线电设计进行优化,工作频率范围为 24.5-43.5 GHz.它提供两种频率转换模式.能够从正交解调直接变频为基带IQ 输出信号,并从镜像抑制下变频为复中频输出载波频率.基带输出可采用直流耦合,或更典型的是,IQ 输出将使用足够低的高通转折频率进行交流耦合,以确保充足的解调精度.SPI 接口可对正交相位进行微调,使用户能够优化 IQ 解调性能.高度集成的ADMV1013微波上变频器和ADMV1014微波下变频器非常适用于工作在28 GHz和39 GHz 5G无线基础设施频带下的微波无线电平台.这些转换器具有1GHz带宽,以及OIP3高于20 dBm的上变频器,可以支持严苛的调制方案（如1024QAM）,可支持多Gb无线数据.此外,该芯片组也支持其他应用如卫星和地面接收站宽带通信链路,航空无线电,RF测试设备和雷达系统.其卓越的线性度和镜像抑制性能尤其适合提升微波收发器范围.本文介绍了ADMV1014主要特性,功能框图以及评估板ADMV1014-EVALZ主要特性,配置图,实验室I/Q模式和IF模式配置图,电路图,材料清单和PCB设计图.
The ADMV1014 is a silicon germanium (SiGe), wideband, microwave downconverter optimized for point to point microwave radio designs operating in the 24 GHz to 44 GHz frequency range.
The downconverter offers two modes of frequency translation. The device is capable of direct quadrature demodulation to baseband inphase (I)/quadrature (Q) output signals, as well as image rejection downconversion to a complex intermediate frequency (IF) output carrier frequency. The baseband outputs can be dc-coupled, or, more typically, the I/Q outputs are ac-coupled with a sufficiently low high-pass corner frequency to ensure adequate demodulation accuracy. The serial port interface (SPI) allows fine adjustment of the quadrature phase to allow the user to optimize I/Q demodulation performance. Alternatively, the baseband I/Q outputs can be disabled, and the I/Q signals can be passed through an on-chip active balun to provide two single-ended complex IF outputs anywhere between 800 MHz and 6000 MHz. When used as an image rejecting downconverter, the unwanted image term is typically suppressed to better than 30 ...