Instruction Manual

JTA2-OM-E Rev A ISSUED: December 2003 7
WHEN TO USE JITTERTRACK
The JitterTrack Function charts the evolution in time of these waveform attributes:
• Cycle-to-Cycle deviation
• Duty Cycle
• Interval Error
• Period
• Pulse Width
• Frequency
Each is time-correlated to its source trace and contains the same number of points as the
waveform.
JitterTrack or Trend?
Whether it is more appropriate to use JitterTrack or the statistical tool, Trend will largely depend
on the application, as well as the other factors set out in the tables below. While JitterTrack
sample points are evenly spaced in time, those of Trend are not. Trend plots any parameter
available in the instrument against its event count, as in a scatter or an XY diagram.
Characteristic Trend JitterTrack
Representation parameter Value vs. Events attribute value vs. time
Attributes or
Parameters Supported
all parameters Cycle-Cycle
Period
Duty Cycle
Width
Interval Error
Frequency
Behavior cumulative over several
acquisitions
up to 1 million events
non-cumulative
(resets after every acquisition)
unlimited number of events