JAI CV-M530 Operation Manual page 11

Cautions in the Pulse Width Control Mode.
1. Pulse width control mode is effective only in non-interlaced field accumulation mode.
2. The exposure start may be delayed up to 1H max., when the falling edge of ext. trigger pulse is not
synchronized with the falling edge of ext. HD signal. To avoid this 1H jitter and delay, the falling edge
of the ext. trigger pulse should be synchronized within 4.4 µsec. to the HD pulse. It can be the ext. HD
in or the Internal HD out.
See cautions in Edge Pre-select Mode page 7.
3. The ext. trigger input is 75 Ohm terminated as factory setting. (R127 short and SW2-2 on). The
voltage level of the ext. trigger has to be 4.0 Vp-p ± 2.0 V. The duration should be more than 1 H
negative going. >64 µsec. and < 60 msec. The input is AC coupled.
4. If the ext. trigger input and ext. HD input are from a source with TTL level, set SW2-1 and SW2-2 OFF
for non-terminated. SW2-1 for HD signal, SW2-2 for ext. trigger pulse. See "7.2 SW2 on PK8057
Board".
EIA (Non-interlaced / Field accumulation mode)
Pulse width control mode ( for non-interlace only )
TRIG
1H more
EXT HD
INT HD
INT VD
1.5H
EEN
Exposure time
0.5H
WEN
CCD out
Video out
CCIR (Non-interlaced / Field accumulation mode)
Pulse width control mode ( for non-interlace only )
TRIG
1H more
EXT HD
INT HD
INT VD
1.5H
EEN
Exposure time
0.5H
WEN
CCD out
Video out
9H
12.5H
2H 9H
20H
Blanking
7.5H
16.5H
9H 7.5H 10H
25H
Blanking
CV-M530/531
Effective pixels
No.10 to 251
242H
Effective video
Effective pixels
No.10 to 251
287H
Effective video
- 10 -
EIA : 1H = 63.5µs
1H TRIG in
1H 1.5H
Exposure time
10H
20H
Blanking
CCIR : 1H = 64µs
1H TRIG in
7.5H 6.5H 1.5H
Exposure time 0.5H
14H
25H
Blanking
9H
0.5H
7.5H