Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 179)

Wave Expert
WE-OM-E Rev A
177
You can also use a
mathematically derived
Golden PLL to filter low
frequency jitter. The cutoff
frequency is user selectable.
Time@level Time at level: Time from
trigger (t=0) to crossing at a
specified level. Time from trigger to
crossing level Reference levels and
edge-transition polarity
can be selected.
Hysteresis argument
used to discriminate
levels from noise in
data.
Standard parameter.
Top Higher of two most probable
states, the lower being base;
it is characteristic of
rectangular waveforms and
represents the higher most
probable state determined
from the statistical
distribution of data point
values in the waveform. Value of most probable
higher state Gives similar result
when applied to time
domain waveform or
histogram of data of
same waveform. But
with histograms, result
may include
contributions from more
than one acquisition.
Standard parameter.
Total Pop Total population of a
histogram. Available with DDM2,
JTA2, and XMAP
options.
Standard in
DDA-5005A.
Width Width of cyclic signal
determined by examining
50% crossings in data input.
If first transition after left
cursor is a rising edge,
waveform is considered to
consist of positive pulses and
width the time between
adjacent rising and falling
edges. Conversely, if falling
edge, pulses are considered
negative and width the time
between adjacent falling and Width of first positive or
negative pulse
averaged for all similar
pulses Similar to fwhm, though,
unlike width, that
parameter applies only
to histograms.
Standard parameter.