DP83TG720EVM-MC: DP83TG720--SPE--signal measurement inquiry

Hi Jim,

I'm not sure what you mean by Pass or Fail. If you want to confirm communication is working, you can use the connect the DP83TG720EVM-MC to your setup and test ping or send packets to confirm it works. 

If you are talking about 100Base-T1 Open Alliance compliance, we have some passing reports with the DP83TG720 available to our customers under NDA. You would have to reach out to your local TI Field Representative to request it.

Best regards,
Melissa

Hi Melissa 

What I mean is, how to measure the waveform of SPE? How to determine whether the waveform is PASS or FAIL?
(We will perform basic functional connection tests, including PIN connections and network stress tests.)

Hi Jim,

What are you evaluating the DP83TG720 for? If you can help me understand the application or specific standard you want to pass, I can help you.

If you just want to use the DP83TG720MC-EVM for network communication, you can just hook up the EVM directly to your PC and your board and start testing communication. 

Best regards,

Melissa

Hi Jim,

By application, I am asking what kind of product is it for (radar for car, TBOX, etc.)

I'm going to assume you're talking about 1000Base-T1 Open Alliance PMA compliance testing, this is a standardized test used to test the MDI (Ethernet) waveform. 

To test this, you will need an oscilloscope with the Automotive Ethernet Compliance test software. Here is a link to the software we purchased, but you can use any test software that complies with 1000Base-T1: https://www.tek.com/en/datasheet/automotive-ethernet-multigbaset1-1000baset1-and-100baset1-compliance

This software includes the setup diagrams for each test. For the software configurations, refer to the register configurations of this app note: https://www.ti.com/lit/an/snla371b/snla371b.pdf

We have already performed these tests. The passing report and test setups are available to our NDA customers. You just have to reach out to your local TI Field representative for this.

Best regards,

Melissa

Melissa Chang

Is there a simple SPE waveform diagram available? For example, something showing Rise Time, Fall Time, or voltage levels that we could use as a reference?