Current step load for AC decoupling LS1028A

[Alexey_Stepuk]

Hello

We are developing a board with LS1028A processor. We are planning to do power integrity analysis and we have questions.

Here my questions: 

1. Сould you please share any information about the current step load for AC decoupling analysis in relation to LS1028A Core and platform supply voltage Vdd 1.0V. Should we use the 100% maximum possible current for analysis or a decrease in the load level is acceptable.
2. Up to what frequency is it necessary to provide the required noise ripple level 30mV for the core supply voltage rail?

Thanks in advance for your support

[Bulat · Accepted solution]

1. Please take a look at the design checklist document (AN12028), section 'Core and platform supply voltage filtering' on page 20 discusses this question.

2. We have no such specification.

Regards,

Bulat