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DS90UB953A-Q1: DS90UB953-Q1/DS90UB954-Q1 I2S Evaluation

Henry Wang3
Expert 2475 points
Part Number: DS90UB953A-Q1

Hi Sir,

My customer ask the application note DS90UB953-Q1/DS90UB954-Q1 I2S Evaluation, is there to do the reference design? have or not other design side effects?

  • 0
    TI__Mastermind 18755 points

    Hello,

    I'm sorry, but I am not sure I understand the question.  Are you able to provide a bit more background about the project?  Are you asking about documentation about system level design? If so, the product page has some good information, such as this app note https://www.ti.com/lit/an/snla267a/snla267a.pdf.

    Regards,

    Nick

  • 0 in reply to Nicholas Darash
    Expert 2475 points

    Hi Sir,

    My customer will use a MEMS mic to DS90UB953A-Q1 on the camera product, they will refer to this application note to do the design, and need to confirm this system on the note can work well or not?

    My customer product block diagram show as below.

  • 0 in reply to Henry Wang3
    TI__Mastermind 18755 points

    Hello,

    So if they are using I2S data transferring from the mic on the serializer side to the deserializer side it should work.  The customer just needs to verify that the signal will not be limited by the bandwidth of the forward channel GPIOs.  In this case with a 953/954 configuration, assuming they will need 4GPIOs the maximum frequency will be capped at 5MHz.  This should be more than enough bandwidth for most I2S rates however they will need to verify.

    Regards,

    Nick