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AM335x Decoupling Caps

JasonHaedt
Genius 3320 points

In the ARM schematic checklist, it discusses decoupling caps of 0.1uF for every 2 pins and 20uF for every 10 pins.  Why does the BeagleBoard use 0.01uF decoupling capacitors?  

-Jason

  • 0
    TI__Guru 64500 points

    I don't see the harm is using capacitance of a different decade to address potential current demand, etc.

  • 0 in reply to BrandonAzbell
    TI__Guru 63055 points

    The title of this forum post is AM335x Decoupling Caps, but you referenced BeagleBoard which does not use the AM335x device.  The BeagleBone uses the AM335x device.

    So were you looking at the BeagleBoard or BeagleBone when making this comparision?

    The AM335x data sheet has a section describing external capacitor requirements.  You should follow the data sheet recommendations.

    Regards,
    Paul