LMH2120 具有 40 dB 动态范围的 6 GHz 线性 RMS 功率检测器

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.

The device has an RF frequency range from 50 MHz to 6 GHz. It provides an accurate, temperature and supply insensitive, output voltage that relates linearly to the RF input power in volt. The LMH2120's excellent conformance to a linear response enables an easy integration by using slope and intercept only, reducing calibration effort significantly

LMH2120
RF Frequency (MHz) 50-6000    
Dynamic Range (dB) 40    
Detector Power Range -35dBm to 5dBm    
Accuracy (dB) 0.5    
Inputs/Outputs 1/1    
Transfer Linear in V    
Modulation Independent Yes    
Supply Min (Volt) 2.7    
Supply Max (Volt) 5    
Supply Current (mA) 2.9    
Shutdown Yes    
Application LTE, W-CDMA, OFDMA, CDMA/CDMA2000, GSM/EDGE
Channels (Channels) 1    
PLL Type Single
LMH2120 特性
LMH2120 工具与软件
培训内容 型号 软件/工具类型
LMH2120 Evaluation Module LMH2120EVM 开发电路板/EVM
LMH2120 应用技术支持与电子电路设计开发资源下载
  1. LMH2120 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器RF/IF 和 ZigBee®解决方案选型与价格 . xls
  3. Junction Temperature of TRF1123 & TRF1223 & Recommended PCB Layout Guidelines (slwa038.HTM, 8 KB)
  4. A Planar, Balanced Approach to Increase Transmitter Linearity (slwa039.HTM, 8 KB)