Workshop: Impedance and multilayer
Developers and designers of high-frequency circuitry know that they must calculate the impedance of printed conductors and allow for it in drafting CAD layouts. What is less well known is that in many standard digital circuits the impedance of printed signal conductors and the power supply increasingly play a role that is functionally de-cisive. The reason for this lies in the shorter switching times (signal rising edge) of modern modules.