The next figure illustrates the relationship between the signal when an external TTL-
level trigger is used:
As before, if the delay is negative, the order of the SYNC and OUT pulses is reversed.
The delay, pulse width, and frequency (when in the internal mode), of the OUT pulse
can be varied with front panel controls or via the GPIB or RS-232 computer interfaces.
TRIGGER MODES
This instrument has four trigger modes:
Internal Trigger: the instrument controls the trigger frequency, and generates the
clock internally.
23
SYNC OUT
(generated by the
internal oscillator)
100 ns, FIXED
MAIN OUTPUT
PULSE WIDTH
DELAY < 0
AMPLITUDE,
VARIABLE
3V, FIXED
SYNC OUT
100 ns, FIXED
MAIN OUTPUT
PULSE WIDTH
DELAY > 0
AMPLITUDE,
VARIABLE
3V, FIXED
> 50 ns
TTL LEVELS
(0V and 3V-5V)
TRIG
(external input)
PROPAGATION DELAY (FIXED)
Summary of Contents for AVO-6A1-B
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Page 37: ...PCB 235B HIGH VOLTAGE DC POWER SUPPLY...
Page 43: ...PERFORMANCE CHECK SHEET 43...
