Signal integrity (SI) engineering has become a
necessary requirement for today’s high-speed logic
signals. It is now critical to gain control of crosstalk,
ground bounce, ringing, noise margins, impedance
matching, and decoupling (all of which relate to
signal integrity) to have a successful design.
Signal integrity describes the environment in which
signals must exist. It covers the various techniques
and design issues that ensure that signals are
undistorted and do not cause problems to
themselves, to other components in the system, or to
other systems nearby. This white paper describes the
theoretical background behind signal integrity and
discusses some SI engineering techniques.