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Pulse Width Parameter
Set the width of the output pulse. There are three width formats
available:
• W
• D
• T
NOTE
You cannot have the width format set to D
edge format set to percentage of width (L
time.
Leading Edge Parameter
Set the leading edge transition time of the pulse, measured from 10% to
90% of the pulse amplitude. There are two formats available:
• L
• L
(select W
IDTH
IDTH
The absolute pulse width measured from the start of the leading edge
to the start of the trailing edge. In this format, the pulse width is
independent of changes in pulse period and delay.
C
(select D
TY
YC
UTY
The duty cycle is the pulse width measured from the start of the
leading edge to the start of the trailing edge expressed as a
percentage of the period. In this format, if you adjust the period, the
absolute width is adjusted to maintain the duty cycle.
D
(select T
RA
EL
RAIL
The trailing delay is the absolute delay from the start of the pulse-
period to the start of the trailing edge. In this format the trailing edge
remains fixed relative to the start of the pulse period if you adjust the
pulse delay (leading edge delay) or the pulse period.
E (select A
EAD
BSOLUTE
The absolute transition time measured from 10% to 90% of the pulse
amplitude. In this format the leading edge is independent of the pulse
width.
E% (select %
EAD
OF
The absolute transition time expressed as a percentage of the pulse
width. In this format, if you adjust the pulse width, the transition time
is adjusted to maintain the edge time as a percentage of the width.
)
C
)
YCLE
D
)
EL
TY
EAD
)
W
)
ID
Using the HP 81101A
The Output Screen
C
and the leading/trailing-
YC
E
%/T
E%) at the same
D
RAIL
59
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