• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 1046 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS8688: What is the clock to data out (Tco) Min and Max value?

Carlo
Expert 7715 points
Part Number: ADS8688

Hi E2E,

Our customer is looking for the minimum and maximum value of clock to data out (Tco)  of ADS8688. They want to know how long does it take from the falling edge of SCLK for data to appear on SDO?

Thank you in advance for your support.

Regards,

Carlo

  • 0
    TI__Mastermind 25020 points

    Hello

    The timing requirements for this part are explained on page 11 of the datasheet.

    The information you are looking for is the Hold Time, t_HT_CKDO which is a minimum of 10ns. after the falling edge of SCLK, there is a minimum time of 10ns to wait until a new SDO data is valid

    Regards

    Cynthia

  • 0 in reply to Cynthia
    TI__Expert 7715 points

    Hi Cynthia,

    Thank you for responding. I understand that the t_HT_CKDO is 10 secs, what is the maximum time to wait for data to be valid?

    Regards,

    Carlo

  • 0 in reply to Carlo
    TI__Mastermind 25020 points

    Carlo,

    Another way to think of this, is by looking at the T_SU_DOCK timing.

    The set up time for SDO data to be valid before the next falling edge, this has a minimum time of 25 ns.

    That means the same SDO data is valid for 25 ns before a clock falling edge and 8 ns after the same falling SCLK edge

    Regards

    Cynthia