Originally published at: https://www.protoexpress.com/blog/designing-transmission-lines-with-controlled-impedance-high-speed-pcb-layouts/
Imagine you’re designing PCB transmission lines for a high-speed application. You’ve routed critical interfaces like PCIe and USB 3.0; however, during validation, some unexpected eye diagram distortions start surfacing. After hours of debugging, you realize the issue arises from discontinuities in transmission line impedance. At this stage, redesigning the signal lines is not just tedious; it’s pricey and delays your entire project. In this article, you’ll learn the root causes of signal attenuation, the impact of impedance variations, and proven design techniques to maintain uniform impedance in high-speed applications. Highlights: When designing transmission lines for your circuit boards: Use impedance…
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