Toshiba IK-TU40A - Manual (Page 28)

(2) External sync frequency range
For NTSC standard frequency: Within ±50ppm
(3) Using the camera with external sync signal
Adjust H (horizontal) phase and SC (sub carrier) phase if necessary to match the output of
multiple cameras. When adjusting H (horizontal) phase and SC (sub carrier) phase, refer
to the item "7.2 (5.2) Changing EXT setting".
(3.1) H (horizontal) phase adjustment
Observe the external sync signal and the video
signal output waveform of the camera with a dual
trace oscilloscope, and adjust H phase so that the
H phase matches.
(3.2) SC (Sub carrier) phase adjustment
Match
the phase.
yXr
i/%v
External
sync, signal
Camera
video output
When using the camera with external sync, the
sub carrier signal phase of the video output signal of the camera can be adjusted. Per­
form a coarse adjustment for 0° and 180° in SC 0/180 and then perform a fine adjustment
in SC PHASE. Using a vector scope for the phase adjustment will provide more accuracy.
7.4 1 PVLSI
Single exposure of the CCD is controlled when inputting the trigger pulse (TRIGGER)
from DC IN/SYNC terminal and then output 1 field picture image.
Trigger pulse level: Low Level
Trigger signal fetch timing
Trigger pulse width
Trigger pulse interval
Trigger pulse Input impedance
: less than 0.5V, High level: 4
: Rising period
: More than 2 ps
: More than 50 ps
: More than 15 kQ.
5V
(Time from trigger pulse input to start of electric charge: Within 2ps)
+5V
IkO
Trigger input|-^^\^^^
15kn
t>°—
TC4S584F
1 PULSE operation timing chart
• When the exposure period is within SYNC interval.
Trigger pulse
(Trigger)
Video output
Jl
1"^“^ Exposure period
u ^
28
Index output
(INDEX)
H: 4 ~ 5V
L: Less than 0.5V