Operator’s Manual Simple AFG Application
49
•
Inf-Cycles:
this mode is similar to the previous one, but after the Trigger the generation starts
until the Run/Stop Button is pressed.
•
Gated:
the waveform is generated only when the Trigger is
“
true
”
. When the trigger returns to
“
false
”
the instrument terminates the current burst sequence then it returns waiting for the
next trigger.
Note:
If you select the Noise as carrier for the Burst mode, the frequency/period associated to the Noise
is the last used
one. It doesn’t affect the generated noise, but affect
s the duration of the burst.
Note:
when the instrument is waiting for the first Trigger the Output voltage level keeps the Offset
voltage but during the wait state after the first execution the Output voltage level keep the last sample
of the carrier waveform.
In the following picture, you can see the gated mode operation. From top to bottom there are:
-
C3 (blue trace) is the Trigger signal source from the external Trigger In connector.
-
C2 (red trace) is the generated signal.
-
C1 (yellow trace) is the marker out.
Burst Gated with Trigger from external