LeCroy 9300C Series

D–3
Parameter Measurement
Determining
Differential Time
Measurements
Figure D–2
To avoid these bias effects, the instrument uses cyclic
parameters, including crms and cmean, that restrict the
calculation to an integer number of cycles.
The oscilloscope enables accurate differential time
measurements between two traces — for example, propagation,
setup and hold delays (Fig. D–3).
Parameters such as ∆c2d± require the transition polarity of the
clock and data signals to be specified.
RIGHT CURSOR
LEFT CURSOR
TWO FULL PERIODS: = 2cycles
first
last
50 %
delay
PERIOD
PERIOD
cmean, cmedian, crms, csdev
computed on interval periods
width
width
width
freqperiod
= 1/
duty width/period=
area, points, data
computed between cursors
TRIGGER
POINT
(Mesial)