OUTPUTS
(cont)
MAIN
SYNC
Figure
6.
SYIC
Output
Relationships
Trigger
Output
The Trigger
port
is an
output
when
the selected trigger source is internal.
This
port
provides a squarewave (OV and - 3V)
from
a 1
kO source impedance
whose
edges are related
to
the
internal trigger interval generator. The Trigger
port
is pro-
tected
from
externally applied voltages up
to
± 15V.
X Axis/Phase
Output
When
sweeps are active,
this
output
produces a voltage ramp
from
-5V
to
+
5V
whose
voltage is proportional
to
the
sweep frequency.
When sweeps are
not
active,
this
output
produces a voltage
from
-3
.2V
to
+
5V
that
is proportional
to
the
magnitude
of
the
Start/Stop
Phase or
-5V
to
+
5V
that
is proportional
to
the
Phase
offset
during phase locked loop operation.
X3
Output
(Option
001)
The
X3
output
amplitude and DC
offset
equal three
times
the
displayed values
if
the
Main
output
is terminated
into
500
and
the
X3
output
into
more than
5000.
This
out
-
put
cannot
source more
than
30mA
peak or ± 15V peak. This means the
waveform
wUl
clip
if
you add any DC
offset
to
a
30Vp-p
signal.
68
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