GENERAL INFORMATION
BASIC PULSE CONTROL
This instrument can be triggered by its own internal clock or by an external TTL trigger
signal. In either case, four output channels respond to the trigger: OUT, SYNC, LOGIC,
and LOGIC-Complement.
•
OUT. This is the main output. The pulse width and amplitude are adjustable. The
maximum output voltage is ±5V.
•
SYNC. The SYNC pulse is a fixed-width TTL-level reference pulse used to
trigger oscilloscopes or other measurement systems. When the delay is set to a
positive value the SYNC pulse precedes the OUT pulse. When the delay is set
to a negative value the SYNC pulse follows the OUT pulse.
•
LOGIC. The signal on this output has approximately the timing parameters as
the main output (i.e. frequency, pulse width, and delay) but the amplitude is fixed
at either TTL logic levels (0 and +5V, approximately) or ECL logic levels
(-1.6V and -0.8V, approximately), depending on the settings. When using this
output, it is recommended that it be terminated with a 50Ω load.
•
LOGIC-Complement Output. The signal on this output is the logical complement
of the signal on the LOGIC output. That is, the high and low logic levels are
reversed.
These pulses are illustrated below, assuming internal triggering and a positive delay:
19
SYNC OUT
(generated by the
internal oscillator)
50 ns, FIXED
MAIN OUTPUT
PULSE WIDTH
DELAY > 0
AMPLITUDE, VARIABLE
2V, FIXED
+5V (TTL) or -0.8V (ECL)
0V (TTL) or -1.6V (ECL)
LOGIC OUTPUT
+5V (TTL) or -0.8V (ECL)
0V (TTL) or -1.6V (ECL)
LOGIC OUTPUT
Содержание AV-1030-B
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