DP83867IS: Compliance Test

Shuji Ishiwata

Part Number: DP83867IS

Tool/software:

Hi Hillman,

I'm sorry for not contacting you for so long.

I made an inquiry via E2E before. This is a continuation of that.
https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1394967/dp83867is-compliance-test/5414706#5414706

The customer has filled out the layout check review excel, so could you please check it?
I will send it to you as a private message because it contains customer information.

The customer has now created a second prototype board and performed the compliance test again, but the following items have failed.

　　　1000 Base-T, Transmitter Distortion (w/ Disturbing Signal)

I have filled out all the items on the checklist,
but I would like to know which items are particularly related to Transmitter Distortion.

Best Regards,
Ishiwata

2 months ago

0 Vivaan Jaiswal 2 months ago

TI__Expert 5540 points

Hi Ishiwata,

We will take a look and get back to you later today.

Regards,

Vivaan

0 Hillman Lin 2 months ago in reply to Vivaan Jaiswal

TI__Mastermind 25715 points

Hi Ishiwata,

I put some comment on the layout checklist in the private chat. Please let me know if you have further comment.

Regards,

Hillman Lin

0 Shuji Ishiwata 2 months ago in reply to Hillman Lin

Mastermind 6985 points

Hi Hillman,

Thank you for your support.
I will send the excel you confirmed to the customer.

Best Regards,
Ishiwata

0 Hillman Lin 2 months ago in reply to Shuji Ishiwata

TI__Mastermind 25715 points

Hi Ishiwata,

Glad that it help.

Regards,

Hillman Lin

0 Shuji Ishiwata 1 month ago in reply to Hillman Lin

Mastermind 6985 points

Hi Hillman,

Thank you for your support.

I have an additional question.

Would the following content in the Excel Feedback be a cause of a "1000 Base-T, Transmitter Distortion (w/ Disturbing Signal)" fail?

　- We typically don't recommend integtraded magnetic RJ45 connector.
　- We always recommend to have ground plane on the RJ45 connector area that is connected to earth ground or shielding
　　gound plan is needed for impedance mathcing

Also, what other factors generally cause a compliance test to fail?

Best Regards,
Ishiwata

0 Hillman Lin 1 month ago in reply to Shuji Ishiwata

TI__Mastermind 25715 points

Hi Ishiwata,

Layout would also effect the compliance result

Customer could refer to the following layout recommendation:

6472.Industrial_PHY_Layout Review Checklist.xlsx

Regards,

Hillman Lin

0 Shuji Ishiwata 1 month ago in reply to Hillman Lin

Mastermind 6985 points

Hi Hillman,

Thank you for your reply.
I will provide your response as feedback to the customer.

Best Regards,
Ishiwata

0 Gerome Cacho 1 month ago in reply to Shuji Ishiwata

TI__Mastermind 35795 points

Hello,

Thank you for your reply. Hillman is OoO today, and will be returning tomorrow. He will be looking forward to your response.

Sincerely,

Gerome

Interface

Interface forum

DP83867IS: Compliance Test