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Power-Up sequence of DM8148 revision2.1(B) and revision 3.0(C/S)

SherryC
Intellectual 935 points

Hi all,

There are two power-up sequences of DM8148.

The old power-up sequence is 1.8V->3.3V->1.5V->1.35V, as below.

 

The new power-up sequence is 1.8V->1.5V->3.3V->1.35V, as below.

About DM8148 revision 2.1(B) and revision 3.0(C/S), does silicon revision B apply to old power sequence and revision C/S to new power sequence? Is that correctly?

Does revision C/S apply to old power sequence?

Does revision B apply to new power sequence?

Could anyone please give me some hints?

Thanks.

Sherry

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

    This new power sequence apply to both 2.1 and 3.0 silicon revisions. Have a look also in the latest silicon errata (SPRZ343C), advisories 3.0.80, 3.0.81 and 3.0.82. You will find there that the revisions affected are 2.1 and 3.0

    Regards,
    Pavel