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MathiasB's avatar
MathiasB
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

[MAX10] Instable dual supply VCCA: consequences?

Hi all, We have a board designed with a MAX10 (10M16) with dual supply. Due to a regulator error, the stable 2,5V that was to be fed to VCCA# pins is a "not so stable" (still to be estimated) 3,...
MathiasB's avatar
MathiasB
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

Hello,

Thank you for your answer.

However, the table refers to VCCIO pin(s). These pins are correctly fed with 3,3V in our design.

The concern is only about the VCCA# pins.

Or did I misinterpret something?

AminT_Intel's avatar
AminT_Intel
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hello,

I believe you are referring to the same thing. Please refer to page 30 of the same document for more information about VCCIO Range Considerations.

Thanks

  • MathiasB's avatar
    MathiasB
    Icon for Occasional Contributor rankOccasional Contributor
    4 years ago

    Hello,

    My understanding is that VCCIO pins are the ones powering the CPLD's IO banks, while the VCCA pins are dedicated to PLL analog block.

    I got this from https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/dp/max-10/pcg-01018.pdf page 16 and https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/max-10/m10_datasheet.pdf page 7.

    The latter also mentions the absolute maximum ratings I mentioned in my first message on pages 4&5.

    Thanks

    • AminT_Intel's avatar
      AminT_Intel
      Icon for Regular Contributor rankRegular Contributor
      4 years ago

      Hello,

      Sorry for the confusion. Yes you are correct. As stated in the document, conditions outside the range listed in the absolute maximum ratings tables may cause permanent damage to the device. Device operation at the absolute maximum ratings for extended periods of time may have adverse effects on the device.

      Thank you

      • AminT_Intel's avatar
        AminT_Intel
        Icon for Regular Contributor rankRegular Contributor
        4 years ago

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