4-13
IM DLM3054-01EN
Level (Level), HF Rejection (HF Rejection), Noise Rejection (Noise Rejection)
Set these items for the trigger source.
These items are the same as those of the edge trigger.
Trigger Position (POSITION), Trigger Delay (DELAY), Trigger Hold-Off (Holdoff)
These items are the same as those of the edge trigger.
• The instrument may not trigger properly if the spacing between signals or the time detection width is less
than 1 ns.
• Under standard operating conditions, the time accuracy immediately after calibration is as follows:
CH1 to CH4: ±(0.002% of s 450 ps)
LOGIC:
±(0.002% of s 1 ns)
Pulse Width Trigger [ENHANCED]
The instrument triggers when the relationship between the trigger source’s pulse width and the specified
reference times meets the selected time condition. The examples are the same as those given under “Examples
of Various Time Conditions” for the pattern trigger [ENHANCED].
Trigger Source (Source)
Select the trigger source from the following: CH1 to CH4 or LOGIC. (The selectable settings vary depending on
the model.) If you set the trigger source to LOGIC, set the source bit.
Configure the polarity, HF rejection, noise rejection, and trigger level settings for the selected trigger source.
Polarity (Polarity)
Select which trigger source polarity will cause the comparison of the pulse width with the reference times. The
trigger source polarity is based on the trigger level.
When the signal level is high
When the signal level is low
Time Condition (Time Qualification)
Set what kind of relationship must be established between the trigger source’s pulse width and the specified
reference times (Time, Time1, and Time2) for the instrument to trigger.
More than
When the pulse width is longer than the specified reference time (Time)
Less than
When the pulse width is shorter than the specified reference time (Time)
Inside
When the pulse width is longer than Time1 but shorter than Time2
Outside
When the pulse width is shorter than Time1 or longer than Time2
Timeout
When the pulse width is longer than the specified reference time (Time)
Reference Times (Time or Time1 and Time2)
The selectable range for Time or Time1 and Time2 varies depending on the time condition.
More than
Time: 2 ns to 10 s
Less than
Time: 4 ns to 10 s
Inside
Time1: 2 ns to [10 s - 2 ns], Time2: 4 ns to 10 s
Outside
Time1: 2 ns to [10 s - 2 ns], Time2: 4 ns to 10 s
Timeout
Time: 4 ns to 10 s
Resolution: 2 ns
4 Triggering