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TPS53830A: [IMC] Jitter check

Allen Lin
Intellectual 2710 points
Part Number: TPS53830A

Tool/software:

Hi Expert,

This is for Dell server project IMC.

1.8V rail jitter result as below, transient test is passed for 1k~10K by frequency sweeping.

Could you help to see if this Jitter result is okay or not? If not, how to improve?

PMIC_TI 0411 (002).pdf

Thanks

Allen

  • 0
    TI__Mastermind 21875 points

    Hi Allen,

    The jitter shouldn't be an issue.

    The main way we've found to reduce the jitter would be to raise your RAMP compensation setting to a higher value but this involves unlocking the PMIC Vendor region registers and might cause a difference in performance so it's not recommended if you're already passing transient tests with the current setting.

    Regards,

    James