SN75DP130: SN75DP130 test fail

user5224526

Prodigy 70 points

Part Number: SN75DP130

I did the same as the PHY compliance test 3.3, pre-rmphasis level Delta test did not pass.

It was written to try boost, so try boost.
Is there any other way to do this if you haven't passed?

over 7 years ago

0 David (ASIC) Liu over 7 years ago

TI__Guru**** 177396 points

Tetsuya-san

Do you have the actual failure report? Which delta test is failing? Besides the delta test failure, are there any other failures?

Thanks
David

0 user5224526 over 7 years ago in reply to David (ASIC) Liu

Prodigy 70 points

Dear David

CTS3.3 results will be sent.
The BOOST setting was tested at 01 (Dafault).

RBR and HBR were good, but were rejected in 6-9.5db, with Hbr2 's 3.5-6db.

Calculation is likely to enter the range that does not pass in the boost setting, but I tried to set actually, boost was still insufficient.

Do you have to set anything other than boost (can be set)?

HBR2_NG.pdf

Tetsuya

0 David (ASIC) Liu over 7 years ago in reply to user5224526

TI__Guru**** 177396 points

Tetsuya-san

Can you please run the test with BOOST setting of 0x10? How long is the trace between DP130 and connector?

Thanks
David

0 user5224526 over 7 years ago in reply to David (ASIC) Liu

Prodigy 70 points

Dear David

I calculated the value of boost before actually doing the test, and the number somehow entered the specified value.
However, I want measures other than boost in case that the examination fails.
The trace between the dp130 and the connector is about 12mm (0.5 inch).(Common Mode Choke Coil and ESD suppressor on the way)

Tetsuya

0 David (ASIC) Liu over 7 years ago in reply to user5224526

TI__Guru**** 177396 points

Tetsuya-san

Unfortunately, BOOST is the only thing that you can tune to see if it will pass the compliance.

Thanks
David

0 user5224526 over 7 years ago in reply to David (ASIC) Liu

Prodigy 70 points

Dear David

The re-test was performed by setting the boost.

The result was a good result.

Thank you for your advice.

Tetsuya

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SN75DP130: SN75DP130 test fail