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AM335x Decoupling caps datasheet recommendation vs BBB

Gunter Schmer
Genius 14202 points

Hi,

the AM335x datasheet shows typical VDD_CORE decoupling of 1x 10pF and 8x 0.01pF. We found that the BeagelboneBlack BBB is using significantly more decoupling than this. Is there a particular reason why the BBB has so much decoupling?

 

Thanks,

--Gunter

  • 0
    TI__Guru**** 393215 points

    Hi Gunter,

    Gunter Schmer said:
    VDD_CORE decoupling of 1x 10pF and 8x 0.01pF

    This is incorrect. Recommended decoupling is 1x10uF and 8x10nF.You will see exactly this quantity of VDD_CORE decoupling on the AM335X GP EVM and Starter Kit. Of course more can placed if PCB space allows - this is up to the designer to decide.