JESD65B Definition of jitter

cycle-to-cycle period jitter (tjit(cc)): The variation in cycle time of a signal between adjacent cycles, over a random sample of adjacent cycle pairs.

period jitter (tjit(per)): The deviation in cycle time of a signal with respect to the ideal period over a random sample of cycles.

phase jitter (tjit(φ)): The deviation in static phase offset t(φ) for a controlled edge with respect to the mean value of t(φ) in a random sample of cycles.