CV-M300

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 usec. 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 voltage level of the ext. trigger has to be 4.0 Vp-p ± 2.0 V. The duration of the negative going trigger signal has to be longer than 1H = 64 sec. and shorter than 60 msec. The input signal is AC coupled.

EIA (Non-interlaced / Field accumulation mode)

Pulse width control mode (for non-interlace only)

EIA : 1H = 63.5s

TRIG

 

 

 

 

 

>1H

 

 

1H

TRIG in

 

EXT HD

 

 

 

 

 

INT HD

 

 

 

 

 

INT VD

 

 

 

 

 

1.5H

9H

 

1H

1.5H

9H

EEN

 

 

 

 

 

Exposure time

12.5H

 

Exposure time

 

0.5H

0.5H

 

 

 

 

 

WEN

2H

9H

10H

 

 

 

 

 

CCD out

 

Effective pixels

 

 

 

 

 

 

 

 

 

 

No.10 to 251

 

 

 

Video out

20H

242H

20H

 

 

 

 

 

 

Blanking

Effective video

Blanking

 

 

CCIR (Non-interlaced / Field accumulation mode)

Pulse width control mode (for non-interlace only)

 

 

CCIR : 1H = 64s

 

TRIG

 

 

 

 

 

 

 

>1H

 

 

 

 

1H

TRIG in

 

EXT HD

 

 

 

 

 

 

 

INT HD

 

 

 

 

 

 

 

INT VD

 

 

 

 

 

 

 

1.5H

7.5H

 

 

7.5H

6.5H

1.5H

7.5H

EEN

 

 

 

 

 

 

 

Exposure time

 

16.5H

 

 

Exposure time

 

0.5H

0.5H

 

 

 

 

 

 

 

WEN

9H

7.5H

10H

 

14H

 

 

 

 

 

 

CCD out

 

 

 

Effective pixels

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No.10 to 251

 

 

 

Video out

 

25H

 

287H

25H

 

 

 

 

 

 

 

 

 

Blanking

 

Effective video

Blanking

 

 

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Page 10
Image 10
JAI CV-M300 operation manual Pulse width control mode for non-interlace only