Composite SI/PI Topology for Signal Power Integrity Analysis
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Solution Overview
Problem
Current integrity analysis tools for electronic systems do not adequately account for the intercoupling of electrical parameters, leading to inaccurate signal and power integrity assessments in real-world, non-ideal operating conditions, particularly in high-speed and densely packed electronic designs.
Innovation Solution
A system and method that generate a programmable composite model for unified signal and power integrity analysis, incorporating behavioral models to emulate power delivery networks and signal processing operations, allowing for AC and transient simulations to account for variable supply reference voltages and interconnect effects between power delivery networks and signal traces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional integrity analysis tools are used, then analysis speed is maintained at acceptable levels, but accuracy of signal and power integrity assessments deteriorates due to failure to account for parametric intercoupling
Solution Approach 1:
The patent merges signal integrity analysis and power integrity analysis into a unified simulation environment. The SI topology and PI topology are interconnected to form a composite SI/PI topology, allowing simultaneous simulation of both signal and power integrity while accounting for their mutual coupling effects. This integration resolves the contradiction by providing comprehensive accurate assessment without requiring separate simplified analyses.
Solution Approach 2:
The composite SI/PI topology serves multiple functions within a single simulation framework. It can analyze signal integrity, power integrity, and their interaction effects simultaneously. The unified environment accommodates various electrical parameters and their intercoupling, providing a universal platform for comprehensive integrity assessment that maintains accuracy while managing complexity through multi-functionality.
2Reliability
If integrated simulation environment is implemented to model real-world conditions, then analysis accuracy improves, but computational time and simulation complexity increase
Solution Approach 1:
The simulation environment is segmented into distinct but interconnected topologies: SI topology for signal integrity, PI topology for power integrity, and a composite SI/PI topology for integrated analysis. This segmentation allows the system to handle complex real-world conditions through modular components while maintaining manageable simulation structure. The segmented approach enables targeted analysis of specific aspects while preserving overall system reliability.
3Measurement precision
If parametric intercoupling between power delivery networks and signal interconnects is modeled, then real-world operating condition accuracy improves, but model complexity and difficulty of analysis increase
Solution Approach 1:
The composite SI/PI topology acts as an intermediary framework that mediates between the complexity of real-world parametric intercoupling and the need for manageable analysis. It provides a structured interface where power delivery network parameters and signal interconnect parameters can be simultaneously modeled and analyzed together, reducing the difficulty of detecting and measuring interaction effects through systematic organization of complex parameters.
Data Source
AI summary
A system and method is provided for generating a programmably implemented model which emulates a power delivery network serving an integrated circuit (IC) core in an electronic system. The system and method generally comprise measures for establishing a power integrity (PI) topology including models for a voltage regulator module that generates at least one predetermined supply voltage level, and for a conductive power rail portion of the power delivery network (PDN). The system and method further comprise measures for interconnecting to the conductive power rail portion model a first behavioral model indicative of the current consumption characteristics of the IC core, and a second behavioral model indicative of the current consumption of an IO interface buffer driving an output signal of the electronic system.