High-Accuracy Logarithmic RMS Power Detector Reference Design for WLAN Applications

(ACTIVE) TIDA-00897

Description & Features

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Key Document

Description

Dynamic transmit-power control is critical for improving spectral efficiency and reducing adjacent channel interference in wireless local area networks (WLANs). In addition, regulatory agencies worldwide require that transmit power be limited to certain level to reduce interference with other communication equipment. Another benefit of transmit power control in WLAN systems is to prolong battery life by reducing power-supply voltage to the power amplifier. This TI design provides a solution for closed-loop dynamic transmit power control for WLAN application. Although this particular design implements WLAN transmit power control, similar concepts can be used to implement power control schemes for other wireless technologies, such as LTE.

Applications for transmit power control span a very wide range: from mobile handheld devices to industrial to automotive applications. For example, LMH2110 can be employed in automotive electronics to satisfy transmit power control needs of LTE or WiFi communication systems.

Features
  • High-accuracy logarithmic RMS power detection for WLAN transmit chain at 5 GHz to 6 GHz
  • 45-dB linear-in-dB power detection range
  • LOG conformance better than ±0.5 dB
  • Highly temperature insensitive (±0.25 db over operating temperature range)
  • Modulation independent response

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMH2110  8 GHz Logarithmic RMS Power Detector With 45 dB Dynamic Range  RF & Microwave  Sample & Buy View Design Kits & Evaluation Modules
LP5912  500mA Low-Noise Low-IQ LDO  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1224 10 Dec 2015 122
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 2165 10 Feb 2016 47
PDF 932 10 Feb 2016 21
PDF 96 10 Feb 2016 25
PDF 273 10 Feb 2016 48


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