Frequency; Duty Cycle; Risetime; Falltime - HP 54501A Programming Reference Manual

•
width
The
-
width algorithm
has standard and user-defined
considerations:
if
first
edge
is
rising
then
-
width
= second
rising
edge
•
first falling
edge
else
•
width
=
first rising edge
•
first falling
edge
Period if
first edge is rising
then
period
=
second
rising edge
-
first rising
edge
else
Frequency
Duty Cycle
Risetime
Falttime
Vmax
Vmin
Vp-p
Vtop
period
=
second
falling edge
•
first falling
edge
frequency
=
I/period
duty cycle
=
(+
width/period)
*
100
Note
+
width is always calculated using
mid-threshold.
risetime
=
time at upper threshold
-
time at lower threshold
falltime
=
time at lower threshold
-
time
at upper threshold
Vmax
=
voltage of the
maximum point
on screen
Vmin =
voltage
of the minimum point
on screen
Vp-p
=:
Vmax
•
Vmin
Vtop
=
most prevalent
point
above waveform
midpoint
HP 54501A
Programming