Operating Basics
TDS5000B Series Quick Start User Manual
43
Trigger Selections
Trigger Type Trigger Conditions
Edge
Trigger on a rising or falling edge, as defined by the slope control. Coupling choices
are DC, AC, LF Reject, HF Reject, and Noise Reject.
Glitch Trigger on a pulse narrower (or wider) than the specified width or ignore glitches
narrower (or wider) than t he specified width.
Width Trigger on pulses that are inside or outside a specified time range. Can trigger on
positive or negative pulses.
Runt
Trigger on a pulse amplitude that crosses one threshold but fails to cross a second
threshold before recrossing the first. Can detect positive or negative runts, or only
those wider than a specified width. These pulses can also be qualified by the logical
state of other channels (four-channel models only).
Window
Trigger when t he input signal rises above an upper threshold level or falls below a
lower threshold level. Trigger the instrument as the signal is entering or leaving the
threshold window. Qualify the trigger event in terms of time by using the Trigger
When Wider opt ion, or by the logical state of other channels using the Trigger When
Logic option (four-c hannel models only).
Timeout Trigger when no pulse is detecte d within a specified time.
Transition Trigger on pulse edges that traverse between two thresholds at faster or slower
rates than the specified time. The pulse edges can be positive or negative.
Video Trigger on specified fields or lines of a composite video signal. Only composite
signal formats are supported.
Pattern Trigger when logic inputs cause the selected function to become True or False. You
can also specify that the logic conditions must be satisfied for a s pecific amount of
time before triggering.
State Trigger when all of the logic inputs to the selected logic function cause the function
to be True or False when the clock input changes state.
Setup/
Hold
Trigger when a logic input changes state inside of the setup and hold times relative
to the clock.
Comm
Trigger in conjunction with mask testing on c ommunications codes and standards.
The controls work together to define the parameters for the trigger event.
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