差分信号（collected by 19245068）

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