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UCD9240 datasheet error (note 6)

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Kevin Seaton
Posted by Kevin Seaton
on Sep 21 2011 10:20 AM
Prodigy140 points

I believe that note 6 on page 4 of the UCD9240 datasheet is an error.  It says "The PMBus command: EADC_SAMPLE_TRIGGER defines the start of the 32ns ADC sample window. So the minimum EAD_SAMPLE_TRIGGER time is 208 + 32 = 240 ns."   My understanding is that the 32 ns sample window immediately precedes (in time) the trigger point, and that the actual minimum EAD_SAMPLE_TRIGGER time is 224 ns. 

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  • Brad
    Posted by Brad
    on Sep 21 2011 16:22 PM
    Expert8040 points

    Your observation about the sample window is correct.

    Submitted for correction: Update 80ns reference for EADC sample window to 32ns.

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  • Kevin Seaton
    Posted by Kevin Seaton
    on Sep 21 2011 16:29 PM
    Prodigy140 points

    One of my other posts references the 80nsec error in Power Designer.  This post talks about the error in the UCD9240 datasheet.  Did you mean to say that the datasheet error was submitted for correction?

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