# Power Integrity Analysis Parameters

## Power Integrity Constraints

- Starting frequency (MHz): lower bound of frequency range in MHz.
- Middle frequency (MHz): middle point of frequency range in MHz.
- Ending frequency (MHz): upper bound of frequency range in MHz.
- Low frequency sweep type: low frequency range sampling method (linear, decade).
- Number of low frequency points per decade: n number of frequency points per decade or frequency point interval in MHz for linear sampling at low frequency range.
- High frequency sweep type: high frequency range sampling method (linear, decade).
- Total number of high frequency points: number of frequency points per decade or frequency point interval in MHz for linear sampling at high frequency range.
- Default DC current of power pin (mA): default DC sink current of PIN for IR-Drop analysis.
- Default allowable DC voltage drop (V): default allowable DC voltage drop value for IR-Drop analysis.
- Default target impedance (Ohm): default target impedance for PDN analysis.
- Default target starting frequency (MHz): default target impedance start frequency for PDN analysis.
- Default target ending frequency (MHz): default target impedance end frequency for PDN analysis.
- Default power/ground via padstack: select default power/ground via pad-stack for PDN analysis.
- Choose the following for IR drop analysis mesh type:
- Polygon: only polygon types are meshed when conducting IR drop analysis.
- Polygon+Trace (default): both polygon and trace types are meshed when conducting IR drop analysis.

- Choose the following for IR drop analysis:
- PIN: only pins of a component are considered, specifically the interactions between pins during IR drop analysis.
- DIE: only the interactions between the pins of a component, but also the parasitic value of the DIE package are taken into account during IR drop analysis.

- IR drop analysis mesh parameter: define mesh size used for IR-Drop analysis. The larger the number, the smaller the mesh size.
- Port Number for Analysis:
- Individual Ports: when selecting, the user directly designates and uses power pins for PDN analysis.
- Port Groups: when selected, the port is designated by making the entire Power Pin of component into one group during PDN analysis.