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Overview

Product Details

Demonstration circuit DC3129A-KIT is a Linduino® evaluation kit for RMS Power Detector LTC5597. It is set up for quick evaluation of RMS RF power measurement using the Arduino/Linduino compatible platform and software download available. When connected to PC with USB cable, accurate power level can be monitored using the graphic user interface.

The LTC5597 is a wide dynamic range linear-in-dB RMS RF Power Detector, operational from 100 MHz to 70 GHz. The Linduino (DC2026C) platform provides 10-bit ADC at 4.9 mV/LSB resolution with 5V default reference voltage. Input dynamic range with 1 dB accuracy is up to 35 dB depending on frequency. The detector output slope is normally 6 LSB/dB. The DC3129A-KIT is optimized for wide operational frequency signals up to 70 GHz using the 1.85mm edge mount connector. Input impedance is internally matched to 50Ω. It is suitable for RMS measurements of high crest factor waveforms up to 12 dB peak-to-average. No external coupling capacitor is necessary if DC voltage at RFIN pin is kept below 1.0V. On board 3.3V regulator provides power to the shield by jumper JP1. Contact applications support for more information.

NOTE: DC3128A is the part number for the RF board only. The RF board schematic & PCB design will show this part number. This item is not available separately. It is included as part of DC3129A-KIT.

DC3129A-KIT is the part number for the complete board stack, consisting of a pre-programmed Linduino board + RF board. The complete assembly is tested and ready for use. Refer to the DC3129A-KIT Demo Manual for further instructions.

For questions, please post to EngineerZone or contact your local Analog Devices Field Applications Engineer.

Applicable Parts

Getting Started

TEST EQUIPMENT AND SETUP

  • Use a high performance signal generator with accurate output power levels up to 70 GHz, such as Agilent E8257D.
  • DC3129A-KIT includes Linduino DC2026C, and the demo board DC3128A assembled with1.85mm connector for best performance up to 70 GHz.
  • Connecting cable for RF signal should be rated up to 70 GHz for the best performance.
  • Optional input attenuation can be used to improve return loss, but also shifts the log intercept point accordingly.

    • Documentation & Resources

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  • Demo Board Schematic (1)
  • User Guide (1)
  • Evaluation Design File (1)
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