High speed signals that must interconnect multiple ICs may be routed in one of the topologies illustrated by fig. 4.12. This is often the case for clock and control signals, but may also apply to data ...
When it comes to communication systems, differential circuits can always provide better performance over single-ended circuits. They can provide higher linearity, immunity to common mode interference ...
Since the dawn of PCB usage, constraints have been an important part of the design. What are the dimensions? What weight of copper? Now, constraints have become much more than just physical dimensions ...