ABSTRACT
Signal integrity describes how much degradation a high-speed digital signal gets on its way from the transmitter chip to the receiver chip, and whether the digital data is still recoverable from the signal. If it is not recoverable then the signal or the design has bad signal integrity. There are clear standards to determine that. High-speed digital design is a method of physical structure design in printed circuit board layout to ensure good signal integrity. This involves stackups, traces, constraints, structures, vias, pads, planes, voids, component pins, and their electromagnetic interactions with each other. The main SI-related design and decision-making activity for hardware design engineers are the hardware architecture and components selection for signal paths, PCB layout high-speed design, and design confidence or validation through simulation and measurement.
