power sequence about AD9609

Hi there, 

I have a question about AD9609.

I just wonder if there power sequence procedure.

 My questions are following.

#1, Please tell me the right procedure DRVDD and AVDD.

#2, What happe if either AVDD or DRVDD is supplied? 

http://www.analog.com/media/en/technical-documentation/data-sheets/AD9609.pdf 

Best regards,

Tarzan

Parents
  • Hi Doug,

    Thanks for your reply.

    Let me ask something about your answer.

    #1, You said there is not a power up sequence, I just wonder why power up sequence is not necessary, even there is a power down sequence.Please tell me what cause this issue.

    (it would be great if you have any material to explain this phenomenon)

    #2, Is there any plans to update the data sheet for this topic?

    #3, You mentioned that DRVDD is powered down before AVDD.

    But our customer worries if the device might damage, since the board is already fixed.

    Can you estimate the time not to damage the device like the following figure?

    Best regards,

    Tarzan

Reply
  • Hi Doug,

    Thanks for your reply.

    Let me ask something about your answer.

    #1, You said there is not a power up sequence, I just wonder why power up sequence is not necessary, even there is a power down sequence.Please tell me what cause this issue.

    (it would be great if you have any material to explain this phenomenon)

    #2, Is there any plans to update the data sheet for this topic?

    #3, You mentioned that DRVDD is powered down before AVDD.

    But our customer worries if the device might damage, since the board is already fixed.

    Can you estimate the time not to damage the device like the following figure?

    Best regards,

    Tarzan

Children
No Data