Triggering
3
2
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
App
Index
6-25
IM 701310-01E
Explanation
This function enables the DL9000 to trigger when the relationship between the condition-
true or condition-false period and the specified reference time meets a certain condition.
Time Span Mode
The DL9000 triggers on the relationship between a single trigger source pulse width and
the specified time. You can select the relationship for activating a trigger.
More than
The DL9000 triggers when the state changes after the pulse width becomes
longer the specified reference time.
Less than
The DL9000 triggers when the state changes after the pulse width becomes
shorter than the specified reference time.
Between
The DL9000 triggers when the state changes after the pulse width becomes
longer than reference time T1 and shorter than reference time T2.
Out of Range The DL9000 triggers when the state changes after the pulse width becomes
shorter than reference time T1 or longer than reference time T2.
Time Out
The DL9000 triggers when the pulse width becomes longer the specified
reference time.
Reference Time
The selectable range is 1.0 ns to 10.0000 s in 0.5-ns steps.
Note
The trigger may not operate properly if the spacing between signals or the signal pulse width is
less than 2 ns. The pulse width accuracy is �(0.2% of set value + 1 ns) in standard operating
conditions after calibration. The set value is equal to the T2 value when the pulse width is
greater than T1 and less than T2.
CH1 to CH4 or EXT
Trigger Source
You can set the trigger source to a channel from CH1 to CH4 or EXT.
Triggering on an External Signal
To trigger on an external signal received through the rear panel TRIG IN terminal, set the
trigger source to EXT.
Polarity
You can select when to compare the pulse width with the reference time, based on the
trigger source signal polarity with respect to the trigger level.
Pos
When the signal is high
Neg
When the signal is low
IN
When the trigger source level is within the specified voltage range (when window
comparator is ON)
OUT
When the trigger source level is outside the specified voltage range (when window
comparator is ON)
Window Comparator
If you set the trigger source to a signal whose window comparator is ON, the DL9000
can be triggered when the waveform is within or outside the specified voltage range.
Triggers during this period if the polarity is set to IN
The specified
voltage range
6.10 Activating a Trigger on a Pulse Width
