What Is PCB Impedance? Why Do USB, DDR, and HDMI Depend on It?
Many people hear the term PCB impedance for the first time and assume it’s something complicated. In reality, it isn’t a component—it’s an electrical characteristic that determines how high-speed signals travel along PCB traces. Simply put, if the PCB trace, power plane, ground plane, or board stack-up isn’t designed correctly, signals can experience reflections, distortion, […]