Power Integrity and EMI

Causes can be subtle, but you can avoid a lot of PI and EMI trouble with eCADSTAR Power Integrity Analysis and EMI Analysis.

FAST EMC VERIFICATION

Fast EMC noise source identification with what-if capabilities.
Complete board EMC screening, and worst-case EM emission prediction.
Based on an industry-accepted R&D approach (UMR EMC Expert System Consortium).
Fast algorithms to analyze: Differential Mode Radiation (DM), Common Mode Radiation (CM), and Power Bus Noise (PB).
Display heatmap style EMI estimation results directly on eCADSTAR PCB Editor canvas.

EMI COUPLING MAP

DC VOLTAGE – PI/EMI ANALYSIS RESULT DISPLAY

POWER INTEGRITY ANALYSIS – DC

Numerical frequency-domain solver (2.5D approach) for DC and IR-Drop analysis with user-controlled meshing density.
Allows analysis of arbitrary/irregular PWR/GND shapes.
DC voltages, IR-Drop, and Current Density.

DC SIMULATION – IC POWER-PIN VOLTAGE AND PDS VIA CURRENTS

Computation of the max current and the voltage drops of the PDN via’s.
Identify problematic vias, define thresholds for the maximum current flow allowed.
Parametric studies on PDN vias for what-if analyses.
Integration and cross-probing into eCADSTAR main canvas (2D/3D) pinpoints to critical board areas.
Calculation of the DC resistance (DC-R analysis) allows verification of IC manufacturer specifications.

PI: VIA WITH HIGH CURRENT/STRONG VOLTAGE DROP (EXAMPLE)

PI IMPEDANCE

POWER INTEGRITY – AC ANALYSIS

Numerical power integrity solver for AC analysis.
Frequency Domain Target Impedance Analysis (FDTIM).
Decoupling analysis.
Parametric studies to optimize board decoupling.
Add virtual decoupling capacitors at user-defined board positions.
Impedance distribution display for user-selected frequencies (heatmap style display on PCB Editor canvas).
Cross probe result diagrams and pin-locations between PI/EMI Analysis tool and PCB Editor.

Datasheets

May 11, 2020

Power Integrity and EMI Datasheet

Configurable controllers, sensors, the Internet of Things (IOT), and many other technologies demand careful power distribution. Problems can easily get missed – not just DC, but subtle issues that involve electromagnetic coupling.

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Although the calculations are sophisticated, the PI and EMI analysis deals with three basic issues...Read More.