Jitter Effects and Measurements in Serial Digital Television Signals

David K. Fibush

Just as the definition and measurement of jitter in baseband NTSC signals was a difficult topic for many years, it has now been found that jitter is of significant interest and of some controversy in the implementation of serial digital audio and video systems. Specifications such as 40 nsec of jitter in AES/EBU digital audio and 0.5 nsec of jitter in serial digital video are important to ensure conformance to the proposed standard. It is necessary to define jitter and appropriate measurement methods, as well as to understand how acceptable jitter in the signal interconnection system may affect resulting analog signals. Test methods can use wideband oscilloscopes or recently available television waveform monitors. Measurement of jitter in serial data systems is a developing subject for television applications. Several methods of measuring jitter, as well as test results for both digital audio and digital video, are discussed.

Print ISSN
Published
1993-08
Content type
Original Research
DOI
10.5594/J03747