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WKUAN's avatar
WKUAN
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4 years ago

ARRIA 10: The impedance between VCC and GND is only 2Ω

Folks, I just finished the soldering of Arria10 10AX115NF45 chip. After the soldering , I measured the impedance between VCC and GND and found that it was only 2 ohm, between VCCA_PLL and GND was only 20 ohm. Is this normal?At present, the PCB has not been powered on.

Thanks,

7 Replies

  • EngWei_O_Intel's avatar
    EngWei_O_Intel
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    4 years ago

    Hi Wu Kuang

    We do not have specification for this. May I know your concern of this?

    Thanks.

    Eng Wei

    • WKUAN's avatar
      WKUAN
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      4 years ago

      Dear Eng Wei

      Thanks for your reply, I want to know if the impedance between VCC(0.9V) and GND is too low (2ohm)? Is it damaged or still nomal? I have to make sure the chip is ok before power the board up.

      Thanks and best regards,

      KUANG Wu

      • EngWei_O_Intel's avatar
        EngWei_O_Intel
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        4 years ago

        Hi Kuang Wu

        We don't have data on this so I am not able to confirm on this. What is the expected measurement? Are you trying to identify whether they are short circuit?

        Thanks.

        Eng Wei

  • WKUAN's avatar
    WKUAN
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    4 years ago

    Hello all, I have powered the board on, it is ok, the 2Ω impedance between VCC and GND is nomal.

    • EngWei_O_Intel's avatar
      EngWei_O_Intel
      Icon for Frequent Contributor rankFrequent Contributor
      4 years ago

      I’m glad that you have your issue resolved, I now transition this thread to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you.

      Eng Wei