We were honored to have Radu Voina from Optimal Designs present at the SIMULIA Americas Users Conference, May 1-2, 2024 in Novi, Michigan.

Abstract

This paper comprehensively analyzes the eMMC memory and an ARM CPU using the PCBs and Packages Module of CST Studio Suite. The study leverages two distinct workflows within PCB Studio to rigorously assess signal integrity while ensuring adherence to the Embedded Multi-Media Card (eMMC) Electrical Standard criteria.

The first workflow, SI-FD Analysis, focuses on examining the frequency-dependent S-parameters of selected signal nets across I/O devices. Leveraging advanced Solver Techniques, specifically 2DTL, this approach yields a comprehensive set of S-Parameter curves derived from the component pins under investigation.

In the second workflow, SI-TD Analysis, the study delves into the transmission behavior of specific signal nets, considering voltage excitations and non-linear loadings on I/O device pins. This comprehensive analysis encompasses factors such as transmission delay, reflection with overshoots and undershoots, and cross-talk. Like SI-FD, SI-TD Analysis uses robust 2DTL Solver Techniques and provides crucial voltage and current curves from the relevant component pins.

By integrating these workflows within PCB Studio, this paper offers a holistic understanding of signal integrity issues between an eMMC memory and an ARM CPU. The findings contribute valuable insights for optimizing signal performance and ensuring the reliability of electronic systems.

Presenter Bio

Radu has made a career in mixed-signal board schematics, PCB design, and signal and power integrity analysis of high-speed interfaces using advance PCB layout and simulation tools.  He has continued education in EMC and Compliance Emissions as well as PCB Manufacturing.  From 2021-2023, he supported several preferred Dassault Systèmes partners for PCB design and simulation using CST Studio Suite.  As the founder of Optimal Designs Europe, he joins Jim in supporting the Dassault Systèmes Partner Channel for CST Sales, Support, and Customer Enablement Services in North America and Europe. 

Degrees -  BS Telecommunications Tech, MS Electronic Engineering

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