Power integrity (PI) has become an ever-increasing challenge, driven by two main issues:
- The need for higher device integration with lower IC supply voltages
- Smaller PCB sizing leading to less space for wide power planes
Take your design into your own hands when it comes to power integrity analysis:
PIPro accounts for the real physical layout of the power delivery network (PDN), incorporating items such as plating thickness for vias. With a dedicated PI-DC simulator, you can get visual feedback in seconds on exactly what the voltage distribution looks like for the selected power and ground nets.
As power distribution networks (PDN) are forced into smaller spaces on the PCB, the power plane may not perform as originally designed due to the temperatures affecting the plane’s voltage drop. Solve this issue using the fully automated electro-thermal iterative simulation. Receive the most accurate representation of the DC IR drop by considering local resistivity changes due to heating, also giving you the ability to perform thermal floor planning.
ADS consider PI not only from a DC perspective but also from the perspective of switching frequencies and transient loads. With the need for flat impedance response, use the AC simulator to compute the PDN impedance versus frequency of the distributed layout with your decoupling capacitors in place. A flat impedance gives us the best opportunity to avoid a destructive voltage ripple in the PDN.