Jitter
In the electronics and telecommunications industries, jitter can be called time-base error (English: Jitter), usually the difference between the periodic signal and the reference clock, and the time base error affects the analog output of the analog-to-analog converter. Considering Jitter is very important, in the communication link, such as (such as USB, PCI-e, SATA, OC-48) is not expected to happen Jitter, especially the sampling signal of the restore process. Like all signals that change over time, jitter can be quantified, such as root mean square, peak-to-peak displacement, and can be quantified by spectral distribution. The jitter cycle is the period in which the time between two peaks of a signal changes. Jitter frequency is the reciprocal of Jitter. Usually, if the Jitter frequency, the impact on the system is not, in the low-order system design can not be taken into account. ...