AN 750: Using the Altera PDN Tool to Optimize Your Power Delivery Network Design

ID 683155
Date 7/08/2015
Document Table of Contents

1.3.5. Data Patterns

Power requirements depend on toggle % of the logic in your design. A clock-like data pattern has higher current requirements than a PRBS pattern. A PRBS pattern has higher current requirements than those for a grey-code pattern.

Use the highest toggle % that you expect to see in your design. The PDN design becomes difficult if you over estimate. Although it is design dependent, Altera assumes a 12.5% toggle percentage. Use the PPPA to analyze the toggle % of your design.

When using the Quartus PPPA, base your power estimations on simulation-based input data. It provides accurate power estimations.