差分信号（collected by 19245068）Differential Signaling Introduction Reading Chapter 6 12/4/2002 Agenda Differential Signaling Definition Voltage Parameters Current mode logic (CML) buffer Timing parameters AC coupling Relate to parameters Modeling & simulation Clock recovery Embedded clock Common mode response Issues with simulation DC balanced codes Cycle Common mode parameters Differential mode parameters 2 8B10B encoding Duty Cycle distortion Differential Signaling 12/4/2002 Single Ended Signaling All electrical signal circuits require a loop or return path. Single ended signal subject several means of distortions and noise. Ground or reference may move due to switching currents (SSO noise). We touched on this in the ground conundrum class. A single ended receiver only cares about a voltage that is ……