具有 40 dB 动态范围的 6 GHz 线性 RMS 功率检测器

(正在供货) LMH2120UMEVAL

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描述

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

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. The device operates with a single supply from 2.7V to 5V. The LMH2120 has an RF power detection range from -35 dBm to 5 dBm and is ideally suited for use in combination with a directional coupler. Alternatively, a resistive divider can be used.

The device is active for EN = High, otherwise it is in a low power consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high impedance during shutdown.

The LMH2120 power detector is offered in a tiny 6-bump micro SMD package.

特性
  • Linear root mean square response
  • 40 dB linear-in-V power detection range
  • Multi-band operation from 50 MHz to 6 GHz
  • Lin conformance better than 0.5 dB
  • Highly temperature insensitive
  • Modulation independent response
  • Shutdown functionality
  • Wide supply range from 2.7V to 5V
  • Tiny 6-bump micro SMD package


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器件型号 从德州仪器 (TI) 或第三方购买 结帐选项 状态

LMH2120UMEVAL/NOPB:
LMH2120UM Evaluation Board

$99.00(USD)




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TI's Standard Terms and Conditions for Evaluation Modules apply.

技术文档
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PDF 1804 2013年 4月 30日 207
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器件型号 名称 产品系列
LMH2120  具有 40 dB 动态范围的 6 GHz 线性 RMS 功率检测器  RF 和微波 

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