Runt pulse
From Wikipedia, the free encyclopedia
A narrow pulse that does not reach a valid high or low level (Digital electronics).
This article relies largely or entirely on a single source . Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.
Find sources: "Runt pulse" – news · newspapers · books · scholar · JSTOR (July 2024)
Find sources: "Runt pulse" – news · newspapers · books · scholar · JSTOR (July 2024)
In digital circuits, a runt pulse is a narrow pulse that, due to non-zero rise and fall times of the signal, does not reach a valid high or low level. A runt pulse may occur when switching between asynchronous clocks; or as the result of a race condition in which a signal takes two separate paths through a circuit, which may have different delays, and is then recombined to form a glitch; or when the output of a flip-flop becomes metastable.
Example
[edit ]Some oscilloscopes provide a method for triggering on runt pulses. The oscilloscope triggers when the signal crosses one of two voltage thresholds, but not both.[1]
References
[edit ]- ^ "Oscilloscope triggering". Tektronix. Archived from the original on 2011年09月28日. Retrieved 2008年05月20日.