GW Instek GDS-2000 series Uer manual - Manual (Page 108)

GDS-2000 Series User Manual
108
Video standard
(video trigger) NTSC National Television System Committee
PAL Phase Alternative by Line
SECAM SEquential Couleur A Memoire
Sync polarity
(video trigger)
Positive polarity
Negative polarity
Video line
(video trigger) Selects the trigger point in the video signal.
field 1 or 2
line 1~263 for NTSC, 1~313 for PAL/SECAM
Pulse condition
(pulse trigger) Sets the pulse width (20ns ~ 200us) and the
triggering condition.
> Longer than = Equal to
< Shorter than ≠ Not equal to
Trigger time
(delay trigger) Sets the delay time (100ns ~ 1.3ms) between the
trigger event and the real trigger timing.
Trigger event
(delay trigger) Sets the number of events ( 2 ~ 65000) passed after
the trigger event, until the real trigger timing.
Ext. input level
(delay trigger) Sets the amplitude threshold level for the external
trigger input signal.
TTL 1.48V
ECL 1.35V
User –12V ~ +12V, user-set level
Trigger slope Triggers on the rising edge.
Triggers on the falling edge.
Trigger coupling Triggers only on the AC component.