The remaining circuit is a power supply to generate ... classes of signals we electronics engineers care about: single-ended and differential-mode. With the first kind, the signal is carried ...

But when you start talking about speed, distance, or both, the single ended solutions don’t look so good. To step in and carry the torch we have Differential Signalling. This is the “DS” in ...

Fig. 3. Synthesized single-ended ECL circuit. In the last step, essential biasing and initialization cells are added to the differential netlist. Furthermore, the resulting top-level pins are created.