HittiteHMC713LP3E50MHz-8GHz功率检测方案  2012/3/1

         Hittite 公司的HMC713LP3E是对数功率检测器/控制器,工作频率从50 MHz 到8000MHz,动态范围高达54dB,到2.7GHz和54dB范围的精度为±1 dB,工作电压从+2.7 到 +5.5V,可应用在蜂窝架构, WiMAX, WiBro 和LTE/4G,RSSI,自动增益和功率控制,**和雷达等.本文介绍了HMC713LP3E主要特性, 功能方框图, 应用和评估PCB电路图以及评估PCB材料清单.

The HMC713LP3E Logarithmic Detector/Controller is ideal for converting the power of RF signals with frequencies in the 50 MHz to 8000 MHz range, to a DC voltage, proportional to input power, at its output. The HMC713LP3E employs a successive compression technology which delivers 54 dB of dynamic range with high measurement accuracy over a wide input frequency range. As the input signal is increased, successiveamplifiers move into saturation one by one creating an accurate approximation of the logarithm function. The outputs of a series of detectors are summed, converted into voltage domain and buffered to drive the OUTP output.

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