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

[WKUAN]

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,

[EngWei_O_Intel]

Hi Wu Kuang

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

Thanks.

Eng Wei

[WKUAN]

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]

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]

Hi Eng Wei,

Yes, I am trying to identify whether they are short circuit

Thanks,

KUANG Wu

[WKUAN]

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

[EngWei_O_Intel]

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

[WKUAN]

thank you， Eng Wei