• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 48 subscribers
  • Views 558 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DAC3482EVM: Interpolation in DAC3482evm

Mayank Gupta99
Prodigy 250 points

Part Number: DAC3482EVM

Using interpolation of 1x, harmonics/noise is increasing the output signal. Whereas, Using interpolation of 4x, harmonics/noise is less in the output signal. Is there a way to reduce this noise/harmonics in output signal for interpolation of 1x?

  • 0
    TI__Expert 4880 points

    Hey Mayank,

    There are a few knobs you can try tweaking to reduce the spurs at the output. For one, reduce your scaling factor in HSDC PRO a few decimal places. Try .7 instead of 1. You can also try reducing/adjusting the  dac gain in the DAC348x GUI. Also you can try adjusting the QMC Gain of both I&Q signals. Try finding a good combination of these variables to get you the output power you want While maintaining good performance.

    Regards

    Yusuf