PCB Systems Design Blog

Posts tagged with 'Modeling'

Fundamentals of SI (Part 1) - Critical nets

Posted Apr 23, 2010, by Steve McKinney

To begin this series on fundamentals of signal integrity, lets start at the very beginning.  Before you start doing any type of simulation or analysis, what do you have to do first, what information do you have to know?  Your design probably has thousands of nets, are you going to simulate all of them??  Probably not, there’s not enough time for that and truthfully, it’s not really necessary.  The first … Read More

Tags: Modeling, IBIS, SI, Critical Nets, Edge Rate, Signal Integrity, high frequency nets, HyperLynx, EMI, Fundamentals

AMI - The next modeling frontier

Posted Jan 14, 2010, by Steve McKinney

If you do any kind of multi-gigabit SerDes design, you’ve probably come across the acronym, AMI - Algorithmic Modeling Interface.   AMI is essential a fast behavioral model of multi-gigabit transmitters and receivers.   Standard IBIS models are good for regular switching edges up to some surprisingly fast speeds, but when you start adding in things like pre-emphasis, and equalization on those edge, … Read More

Tags: Multi-Gigabit, Models, SERDES, ATM, Xilinx, Eye Diagram, AMI, IBIS 5.0, SPICE, V5, Modeling, HyperLynx, Virtex 5, Webinar, IBIS