Ground bounce is a phenomenon that occurs in digital circuits, particularly in integrated circuits (ICs) and high-speed PCB (printed circuit board) designs. It refers to the unwanted voltage fluctuation or 'bouncing' on the ground signal due to rapid switching of signals in the circuit. When a device such as a microprocessor switches states (from low to high or vice versa), it can cause a sudden change in current, which can lead to transient voltage spikes on the ground plane.
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