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TMS320DM6467T: About DM6467T power sequence

carolyn zhang
Intellectual 995 points
Part Number: TMS320DM6467T

Hi,

According to the 7.3.1 of DM6467T datasheet, the power sequence should be 1.2v->1.8v->3.3v. However, according to the document 'PIP Power Reference Design for the DM6467 (Rev. A) '(http://www.ti.com/lit/df/slvr318a/slvr318a.pdf ), it power sequence is 1.2v->3.3v->1.8v.

Could some one tell me which one is right? Thanks.

  • 0
    TI__Guru**** 170625 points
    Hi Carolyn,

    DM6467T datasheet is most up to date and with highest priority. The correct power sequence is what we have in datasheet.

    Also in the 'PIP Power Reference Design for the DM6467 (Rev. A) ' I see we have:

    "The power ramp order must be CVdd before DVddr2, and DVddr2 before DVdd33..." which seems to be aligned with datasheet.

    See also Advisory 3.0.4 of the DM6467T silicon errata:

    www.ti.com/.../sprz307a.pdf

    Regards,
    Pavel