IEEE Std 2414-2020 pdf free

IEEE Std 2414-2020 pdf free.IEEE Standard Jitter and Phase Noise.
IEEE Std 802.1X defines specifications, modeling methods and terminology for the dispersion of specified instants of repetitive andior periodic signals in electronics, telecommunications and mcasurcmcnt, which is referred to as jitter and phase noise.
1.2 Purpose
The purpose of the standard is to facilitate accurate and precise communication concerning jitter and phase noise and the models for measuring them, Because of the broad applicability of such terms in the electronics industries (such as computer, telecommunication, and measurement instrumentation industries), developing unambiguous definitions and the presentation of models for their measurement is important for communication between manufacturers, users and consumers.
2. Definitions, symbols, acronyms and abbreviations
2.1 Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE Siandard.c Dictionary Online should be consulted for terms not defined in this clause.
amplitude of the timing jitter: The range of deviations of the actual refirence instants of a timing waveform from their ideal values.
hounded uncorrelaled jitter (BtJ): The non-periodic contribution to the deterministic jitter in a two-level (binary) or multilevel signal that is associated with signal transitions but which shows no correlation to the signal itself.
Jitter is a general term that describes a phenomenon consisting in the deviation of the reference instants of a sequence of events from their idcal values. Jitter may be intcrpretcd in several ways, as will be discussed in this standard, depending on the practical effect of interest and its application.
Jitter has many different physical sources. However, from a behavioral point of view, jitter can be modeled by means of statistical distributions, time trends, and frequency domain analysis of event reference instant deviations.
Jitter appears either on ideally periodic signals, like those generated by clock sources and sine wave generators; inherently non-periodic signals, like baseband digital signals: or in general repetitive signals that include asynchronous events
It is the features and instants in a waveform that are amenable to measurement and analysis and, hence, the reference to waveform characteristics in this standard. The word “actual” when it refers to a waveform or its features is used to indicate the measured or acquired waveform or its features.
3.2 Timing jitter
rhCn the jitter specifically affects signals that are intended to provide a timing reference, such as clock signals or sync signals. it is called timing jitter. The following subclauses provide specific mathematical symbols and models. It is worth noticing that when the effxt is due to long-term phenomena, the term wander is used instead. The boundary between short-term and long-term phenomena is conventionally placed, in this context, at 10 11/ in the power spectral density (see 3.5.1 for details).
Timing jitter is the deviation of the actual reference instants associated with a timing waveform with respect to their ideal values.
Timing jitter provides a measure of the short-term instability of the timing circuit. Timing jitter is characterized by means of its spectral properties, its statistical distribution in time or its time trend. In these two last cases, timing jitter shall be expressed in units of time or in unit interval (UI).
The amplitude of the timing jitter is defined as the range of deviations of the actual reference instants of a timing waveform from their ideal values.
The example shown in Figure 1 presents a case of timing jitter induced by additive amplitude noise on the timing signal. In this figure, the noisy positive-going transition of the waveform crosses the detection threshold over a range of reference instants that deviate from the ideal reference instant. Note that only one threshold crossing is detected per repetition of the transition.IEEE Std 2414 pdf download.