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Yamada1's avatar
Yamada1
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

About Power sequence

It would be helpful if you could teach us the following points about the power supply sequence of Arria10GX. 　1) The guidelines state that the power should be turned on in the order of Group1 → Grou...
FakhrulA_altera's avatar
FakhrulA_altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi Yamada1,

For powering up, as stated in the user guide, you may follow the guideline of tRAMP stated in the datasheet.

Additionally, all power rails must ramp up monotonically. The power-up sequence should meet either the standard or the fast Power On Reset (POR) delay time. The POR delay time depends on the POR delay setting you use. For the POR specifications of the Intel Arria 10 devices, refer to the POR Specifications section in the Intel Arria 10 Device Datasheet.

For your second question, it is generally recommended to ensure that these voltages start rising at the same time or follow a specified power-up sequencing. This synchronization helps maintain proper signal integrity, avoids potential issues related to voltage mismatches, and ensures reliable operation of the I/O circuitry.

Regards,

Fakhrul

Yamada1's avatar
Yamada1
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Thank you for answering.

As for "For your second question,...", is this the answer to question 3)?

Sorry for the inconvenience, but thank you in advance.