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AM1808 USB0 PLL errata(Advisory 2.1.10)

Prad1
Genius 3825 points
Other Parts Discussed in Thread: AM1808

Hi,

This is regarding the Advisory 2.1.10(USB0 PLL Mean Frequency Can Drift Across Large Temperature Swings)
mentioned in the AM1808 errata document.

We understood this errata is FIXED in the latest revision(REV 2.3).
But we would like to know if it is possible to provide us the Test Results
of the tests performed in order to make sure this problem is FIXED in REV 2.3..

Can we assume the type of tests or procedure performed would be something
defined in the Advisory 2.1.10 "How to Most Easily Reproduce the Issue"?

The reason we need this details is that, currently the customer has almost
finished their design and tests heading to the mass production with REV 2.1,
but we came to know that REV 2.1 will be replaced with REV 2.3....
so the customer wants to make sure there is no necessary to repeat all the
tests with REV 2.3 (especially for the USB part).

Best Regards
Prad

  • 0
    TI__Mastermind 35645 points

    Hi,

    Team is working on this and will provide an update as soon as they have an answer.

    Thanks & regards,

    Sivaraj K

  • 0
    TI__Guru* 83745 points

    Hi Prad

    Apart from the PCN we do not have anything else that we can share with the customer. I do believe that PCN should be sufficient. 

    Prad1 said:
    Can we assume the type of tests or procedure performed would be something
    defined in the Advisory 2.1.10 "How to Most Easily Reproduce the Issue"?

    At a high level yes, but we look at some data of the USB PHY that can be pulled in test modes and not in functional mode, but allows us to make the correlation as you would see the customer using USB in functional mode and seeing the failures. 

    Prad1 said:
    so the customer wants to make sure there is no necessary to repeat all the
    tests with REV 2.3 (especially for the USB part).

    No, the USB changes should be seamless and transparent and improve the results if they were doing USB robustness testing over temperature transitions etc to qualify their product against the errata. 

    Hope this helps. 

    Regards

    Mukul