The New Wave In High-speed Modeling

摘要

The fastest way to an answer is not always the direct path. When it comes to characterizing the electrical performance of an interconnect, like a connector, package, interposer or backplane channel, looking at its impact on digital signals is not the most efficient way of describing its high speed digital performance. You may see how it behaves for one specific application, but it is difficult to extend this to other high-speed digital signals (FIGURE 1).rnThe solution is to borrow an approach used in the RF world: that is, to use the interactions of precision sine wave signals with the connector to characterize its performance. While this seems like a step backward for digital applications, it provides a simple, reproducible and general process that has swept the signal integrity world by storm over the last five years to become the de-facto standard in gigabit-per-second applications.