Preshoot and overshoot are peak distortions preceding/following an edge. Ringing is the positive-peak and negative-peak distortion, excluding overshoot, on pulse top or base. A combined preshoot, overshoot and ringing specification of e.g. 5% implies: • Overshoot/undershoot < 5% • Largest pulse-top oscillation <+5%, of pulse amplitude.
Pulse output is specified as pulse top and pulse base (usually referred to as high level and low level), or as peak to peak amplitude and median offset. A “window” specification shows the limits within which the pulse can be positioned.
The time interval between the leading edge medians of consecutive output pulses. Time between two leading edges of two pulses is called Pulse Period.
Time Reference Point is the time reference point is at the median of the amplitude (50% amplitude point on pulse edge).
Interval between leading- and trailing-edge medians. The specified and displayed value is that obtained with fastest edges, essentially equal to the interval from the start of the leading edge to the start of the trailing edge. By designing so that the pulse edges turn about their start points, the interval from leading-edge start stays unchanged […]
Time taken for pulse levels to settle within level specifications, measured from 90% point on leading edge.
Interval between the 10%- and 90%- amplitude points on the leading/trailing edge.
Interval between leading edge medians of trigger output pulse and output pulse. The specified and displayed value is that obtained with the fastest leading edge. Pulse delay has two components, a fixed delay from trigger output to output signal and a variable delay with respect to the trigger output.
Peak deviation of an edge from a straight line through the 10%- and 90%- amplitude points, expressed as percentage of pulse amplitude
When an instrument operates under the same environmental conditions and with the same settings, the value of a parameter will lie within a band inside the accuracy window. Repeatability defines the width of this band.
Interval between leading edge medians of the double pulses.