LMH2100 用于 CDMA 和 WCDMA 的 50 MHz 至 4 GHz 40 dB 对数功率检测器

The LMH2100 is a 40 dB RF power detector intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 50 MHz to 4 GHz. It provides an accurate temperature and supply compensated output voltage that relates linearly to the RF input power in dBm. The circuit operates with a single supply from 2.7V to 3.3V.

The LMH2100 has an RF power detection range from −45 dBm to −5 dBm and is ideally suited for direct use in combination with a 30 dB directional coupler. Additional low-pass filtering of the output signal can be realized by means of an external resistor and capacitor. Figure (a) shows a detector with an additional output low pass filter. The filter frequency is set with RS and C

LMH2100
RF Frequency (MHz) 50-4000    
Dynamic Range (dB) 40    
Detector Power Range -45 dBm to -5 dBm
Accuracy (dB) 0.5    
Inputs/Outputs 1/1    
Transfer Linear in dB    
Supply Min (Volt) 2.7    
Supply Max (Volt) 3.3    
Supply Current (mA) 7.1    
Shutdown Yes    
Detector Internal    
PLL Type Single
LMH2100 特性
LMH2100 工具与软件
培训内容 型号 软件/工具类型
LMH2100 Evaluation Module LMH2100EVM 开发电路板/EVM
LMH2100 应用技术支持与电子电路设计开发资源下载
  1. LMH2100 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)