 The digital delay generator is similar to a pulse generator in function but the timing resolution is much finer and the delay and width jitter much less.Some manufacturers, calling their units "digital delay and pulse generators", have added independent amplitude polarity and level control to each of their outputs in addition to both delay and width control.Now each channel provides its own delay, width and amplitude control, with the triggering synchronized to an external source or internal rep rate generator - like a general-purpose pulse generator.