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5145 Discussions

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

WKUAN
Novice
376 Views

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,

0 Kudos
7 Replies
EngWei_O_Intel
Employee
368 Views

Hi Wu Kuang

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

 

Thanks.

Eng Wei

WKUAN
Novice
363 Views

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
Employee
348 Views

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
Novice
340 Views

Hi Eng Wei,

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

Thanks,

KUANG Wu

 

WKUAN
Novice
295 Views

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

EngWei_O_Intel
Employee
276 Views

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
Novice
269 Views
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