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DS90UB934-Q1: power sequencing of DS90UB934-Q1

Terry Liang
Intellectual 1990 points
Part Number: DS90UB934-Q1


Hi team,

Customer is confused at why it should take so long time for VDDIO and VDD18 rise time of UB934 as below? is it necessary? they got trouble for extending the rise time. and for other deserializer like UB914 and UB954, this time is much smaller. 

 

thanks!

  • 0
    TI__Expert 5480 points

    Hi Terry, 

    Yes, it is necessary. Please remind the customer that they need to follow the datasheet specs and violations of the datasheet spec may result in errors. Each device is different which is why the rise times are different. 

    Thanks, 
    Sally