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DS90UB962-Q1: Deserializer Supply Current

Jason Borovicka
Intellectual 970 points
Part Number: DS90UB962-Q1

The 962 datasheet groups all the 1V8 supply pins into a single spec. Can you please provide what percentage of the total current each bank (VDD18_Px, VDD18_FPDx, VDD18A) is consuming?

  • 0
    TI__Mastermind 19280 points

    Hello Jason,

    In the 962 datasheet, we have validated the current draw of the 962 device from each power rail in the system, based on certain operating conditions.

    Specific current draw for each individual VDD18 pin have not been defined. However, in the Typical Applications diagram, we expect all of the VDD18 power supply pins to be connected to the same 1V8 rail and their combined current draw from the 1V8 rail is defined in the datasheet.

    Best,

    Justin Phan

  • 0 in reply to Justin Phan
    Intellectual 970 points

    Hi Justin, We are running some PI simulations and we require the current draw for each pin or, at least, the current draw for each bank of pins shared after the ferrites. Can TI please provide this info?

  • 0 in reply to Jason Borovicka
    TI__Mastermind 19280 points

    Hello Jason,

    I will need to look into this topic a bit more to see if we have any validation data that we can share. I will try to get back to you within 2-3 business days.

    Best,

    Justin Phan

  • 0 in reply to Justin Phan
    TI__Mastermind 19280 points

    Hello Jason,

    I've double-checked with our Validation team and there is no data available for the current draw from each pin group on the 962 device.

    We will not be able to support a detailed breakdown of the current consumption on the VDD18 voltage rail, but if Magna follows the power supply filtering guidelines in our datasheet and maintains voltage ripples within 1.8V(+/-5%) or 1.1V(+/-5%), then we are confident that the device will work as intended, since those conditions are what we used to validate our parts.

    Best,

    Justin Phan