The length of your terminator doesn’t matter

The length of your terminator doesn’t matter

Many designers go to great lengths to make sure they do appropriate length-matching, even to the level of including the…

Vias are longer than their length

Vias are longer than their length

Yeah, that’s what I said.  Vias are longer than their length.  Phrased more appropriately, the delay introduced by a via has…

How do you manage your trace lengths?

How do you manage your trace lengths?

Too often I see people just using straight length to manage their board timing.  Or take it one step further…

S-parameters are for more than just packages

S-parameters are for more than just packages

In the digital design world, we have typically only seen S-parameters used to model packages.  They are a popular output…

Making SERDES sims faster with IBIS-AMI

Making SERDES sims faster with IBIS-AMI

You may have heard lately about IBIS-AMI models, which are being used more often for SERDES simulation.  IBIS-AMI stands for I/O…

Tired of waiting for your SPICE to finish?

Tired of waiting for your SPICE to finish?

Anyone who has ever had to simulate a SERDES interface knows how long it take to run a couple hundred…

Fundamentals of SI (Part 1) – Critical nets

Fundamentals of SI (Part 1) – Critical nets

To begin this series on fundamentals of signal integrity, lets start at the very beginning.  Before you start doing any…

Do you want to be a professional?

Do you want to be a professional?

Over the last few days, I’ve been in some interesting discussions, the crux of which revolved around “why would anybody…

What’s your excuse?

What’s your excuse?

Over the last few months, I’ve visited dozens of customers talking with them about power distribution design.  Power Distribution design…