TUSB8042A: TUSB8042A fail

Hello,

We are looking into this and will get back to you shortly.

Thanks,

Zach

Akihiro:

   Can you sned test report? TX or RX?

Best

brian

This matter is a continuation of the email I had with BRIAN until 4/15/2023.
[TUSB8042A USB3.0 Compatibility Test Upstream Fail]

sorry, just find out it's old issue which failed RX short channel JTOL. , how  long is trace  of TX/RX for upstream port ?

Best

Brian

I previously sent you a schematic and a PCB artwork drawing. On April 12, 2023, we received the following response.

”Trace for upstream port  looks fine, only 2 in or 1db loss at 5Gbps.”

t looks weird it can pass RX long channel but failed short channel, Can customer send system to Dallas for  test.

Best

brian

The following results are from upstream
RX:Long is Pass, Short is Fail.
TX: long is Fail, short is pass.

The test report is attached again.USB-IF_Hub_RX_USB3.2_SS_Fail_02212023_Legacy.pdfUSB-IF_Hub_UFP_TD1p3_USB3.2_SS_Fail_02212023_Legacy.pdf

for RX test, did they have a good equipment calibration? it should not fail at lo freence.

Best

Brian

The test was conducted at the test site, so the calibration is determined to be performed as a routine.

ok, Can customer ship system to us to test?

Regadrds

brian

We apologize. The product is in the development stage and cannot be shipped for testing.
If there is nothing else we are aware of regarding this matter, we will close it for now.

Thank you

ok, let's close at this moment.

Best

Brian