SI经典名著之三 蓝宝书——数字信号完整性和建模

SI经典名著之三 蓝宝书——数字信号完整性和建模
Chapter 2


SIGNAL INTEGRITY


Digital systems rely on signaling from drivers to receivers to pass information be-
tween their components. Reliable signaling is achieved when the signaling specica-
tions are met under full adverse noise conditions as well as device behavior variations
due to both process deviations in device manufacturing and normal changes over
the operating temperature. A breakdown in communication leads to glitches where
unintended or incorrect data is transferred, a situation called false signaling .
Critical data paths within systems often contain safeguards against false signal-
ing, and the primary system for this is data redundancy through parity. Parity can
enable the