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DP83822I: Link pulse return

Shinichi Inoue
Guru 21811 points
Part Number: DP83822I
Other Parts Discussed in Thread: TLK105

Dear Specialists,

My customer is encountering the problem on TLK105.

At the power is off, link pulse is reflected to Tx, and then error recognition happened at the hub.

This is sometimes happened to TLKxxx.

 

Acoording to the post listed below, DP83822 may be improved.

If so, do you have any data of link pulse reflection.

It's a good news to the customer, I can suggest the customer change to DP83822.

I appreciate your great help in advance.

Best regards,

Shinichi

  • 0
    TI__Mastermind 26320 points
    Hi Shinichi-san,

    Yes, this specific issue was addressed with DP83822. You can customer to use DP83822 EVM to test and confirm.

    Regards,
    Geet
  • 0 in reply to Geet Modi
    Guru 21811 points

    Hi Geet,

    Thank you for your reply.

    I understand the issue was solved.

    The customer wants to confirm the issue was surely solved in DP83822. 

    Could you provide some document of reflection.

    I appreciate your great help and cooperation.

    Best regards,

    Shinichi

  • 0 in reply to Shinichi Inoue
    TI__Mastermind 26320 points
    Hi Shinichi-san,

    Can you please help what kind of document you are looking for ?

    Given this is functional issue and easily reproducible, it can be tried on DP83822 EVM by customer himself to confirm issue is fixed.

    Regards,
    Geet
  • 0 in reply to Geet Modi
    Guru 21811 points
    Hi Geet,

    Thank you for your reply.

    I agree your comment.

    But the customer need to explain why the issue has solved to the end customer.

    I think off isolation of DP83822 is developed to improve than TLK1xx.
    Could you please inform how has the device improved and how much improved.
    It' also OK design value.

    I appreciate your great help and cooperation.

    Best regards,
    Shinichi
  • 0 in reply to Shinichi Inoue
    TI__Mastermind 26320 points

    Hi Shinichi-san,

    This is internal to TLK105 device circuit and functional issue. While designing DP83822, it was ensured that appropriate design measures are taken to address the issue. The use-case was tested during validation of device and found to be ok.

    Please send me direct mail for further discussions on this topic if any.

    Regards,

    Geet

  • 0 in reply to Geet Modi
    Guru 21811 points

    Hi Geet,

    Thank you for your reply.

    I see, I try to fix your information.

    If additional support, I'll consult you.

    Could you send back my email address?

    inoue@fujiele.co.jp

    Best regards,

    Shinichi