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DP83TG720S-Q1: DP83TG720S-Q1 PMA test:Transmitter distortion、PSD and power level test fail

Jiang Long
Prodigy 30 points
Part Number: DP83TG720S-Q1

Tool/software:

During the PMA test, there are a failure. What could be the possible causes? How can we optimize it?

① Transmitter distortion, test mode 4 ,fail.The waveform is abnormal.

  • 0
    TI__Mastermind 18950 points

    Hi Jiang,

    Can you tell us more background information?

    • What kind of project are you using the DP83TG720 in?
      • Has TI reviewed the project details before? Do you have a TI FAE contact?
    • We have a public application note describing how to configure the DP83TG720 for compliance tests, section 4 describes PMA tests
      • Did you follow all of the steps described, including the master/slave register initialization sequence after powerup and switching to the appropriate test modes for the different tests?

    Best,

    Evan Su