NS LMH2120 6GHz线性RMS功率检测方案

NS 公司的LMH2120是6GHz线性RMS功率检测器，动态范围40dB，工作频率从50 MHz到6 GHz，一致性优于±0.5 dB，对温度不敏感，工作电压2.7V-5.0V,主要用在多模式多频段功率控制如GSM/EDGE，CDMA/CDMA2000，WCDMA，OFDMA和LTE，基础设备的RF功率控制。本文介绍了LMH2120主要特性，方框图，发送功率控制系统框图，应用电路以及LMH2120 评估板电路图和LMH2120 评估板材清单。

6 GHz Linear RMS Power Detector with 40 dB Dynamic

The LMH2120 is a 40 dB Linear RMS power detector particularly suited for accurate power measurement of modulated RF signals that exhibit large peak-to-average ratios, i.e, large variations of the signal envelope. Such signals are encountered in W-CDMA and LTE cell phones. The RMS measurement topology inherently ensures a modulation insensitive measurement.
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