Abstract: A signal sampling system includes an input signal and a plurality of samplers. The plurality of samplers produces a plurality of sample output signals. Each sampler from the plurality of samplers samples the input signal to produce a corresponding sample output signal from the plurality of sample output signals. Each sampler samples the input signal with a sampling pulse having a sampling aperture. A first sampling aperture used by a first sampler from the plurality of samplers to sample the input signal differs in duration from a second sampling aperture used by a second sampler from the plurality of samplers to sample the input signal.

Abstract: A signal sampling system includes a plurality of samplers that sample a signal. A signal processor processes samples acquired by the plurality of samplers in order to characterize jitter present in the signal. A set of samples is taken for a periodically repeating signal edge. The set of samples includes one sample from each sampler in the plurality of samplers. Each sample in the set of samples is taken at a different time. The signal processor evaluates values of samples within the set of samples to characterize jitter.

Abstract: A sampling timebase system uses the frequency stable clock signal present in digital systems to accurately reconstruct waveforms that are synchronous with the clock signal. The sampling timebase system provides a strobe signal having a precisely controlled time delay relative to a trigger event. An interval counter is programmed to count a specified number of the cycles of the clock signal, providing for coarse time delay adjustment of the strobe signal in time increments determined by the period of the clock signal. A fine delay generator triggered by the terminal count of the interval counter provides for fine adjustment of the time delay of the strobe signal. The interval counter and fine delay generator are programmable to progressively vary the time delay between the strobe signal and the trigger event relative to cycles of the waveform. The strobe signals, when applied to a sampler, enable sufficient samples to be acquired to reconstruct selected segments of the waveform.