What factors should be considered when designing a PCB for a high-speed digital signal?
When designing a PCB for high-speed digital signals, factors such as signal integrity, impedance control, and minimization of cross-talk and electromagnetic interference are crucial. Using differential pairs, proper routing techniques, controlled impedance traces, and maintaining signal return paths are important considerations. Additionally, the choice of PCB material and layer stack-up plays a significant role in managing signal degradation at high frequencies.