Device-Specific Power Delivery Network (PDN) Tool 2.0 User Guide
ID
683293
Date
8/24/2021
Public
1.2.2.1.1. Device Selection Section
1.2.2.1.2. Power Rail Data and Configuration Section
1.2.2.1.3. Meeting Target Impedance when Entering 0 A into the PDN Tool
1.2.2.1.4. Dealing with Multiple Shared Power Supply Pin Types
1.2.2.1.5. VRM Data Section
1.2.2.1.6. Rail Group Summary Section
1.2.2.1.7. VRM Impedance Section
1.2.2.1.8. BGA Via Section
1.2.2.1.9. Plane Section
1.2.2.1.10. Spreading Section
1.2.2.1.11. Implementing Split Planes
1.2.2.1.12. FEFFECTIVE Section
1.2.2.1.13. Decoupling Section
1.2.2.1.14. Results Summary Section
1.2.2.1.15. Recommended Flow for Deriving Decoupling for an FPGA System using the System_Decap Tab
1.2.2.7.8. User Set FEFFECTIVE
You must decouple to an FEFFECTIVE higher than what is calculated for the power rails of some device families. In this case, you must set the FEFFECTIVE option to Override in the System_Decap tab. The PDN tool 2.0 then uses the FEFFECTIVE value entered here.