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NM11
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2 years ago

Power Sequence of Arria V GX (FPGA)

We are using Arria V GX (FPGA) in a prototype we are considering developing. I have 3 technical questions about Power Sequence. 1. In the Arria V Device Datasheet, at the end of Table 3 of 1.1....
NM11's avatar
NM11
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2 years ago

Hi Xiaoyan-san,

Thank you for your answer.

I will check the "VCC_0V75".

Please continue to confirm the influence of "non-monotonic power supply".
Please also consider the following as described on April 5
> So we intend to set the power supply from our system to the FPGA as specified.

Best Regards,

Naoki

NM11's avatar
NM11
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2 years ago

Hi Xiaoyan-san,

I checked the "VCC_0V75".

This power rail is not connected to other power supplies on schematic.
The cause of the floating from GND was that this power rail was taking a long time to discharge (about 1 minute).
When I turn on the system before the power rail finishes discharging, the voltage rises from about 0.2V.
Is there a problem with a maximum of about 0.2V?
The system appears to be working fine in that case.

So, this power rail is not affected by other power supplies.

I would also appreciate your response to the following questions I have asked you in the past.
> Please continue to confirm the influence of "non-monotonic power supply".
> Please also consider the following as described on April 5
>> So we intend to set the power supply from our system to the FPGA as specified.

Best Regards,

Naoki