JAI TM-6710 operation manual External Pulse Width Control Mode, Vinit Input Schematic

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Operation

• Internal Fast Reset Mode

• Internal Slow Reset Mode

Mode 0:	Normal Mode
Async Mode 1-4:	Fast Mode
Async Mode: 5-8:	Slow Mode
Async Mode 9:	External pulse width control mode
3.3.3 (a) External Pulse Width Control Mode
The TM-6710 can be reset with external reset pulse
(VINIT). Set the dial switch to “9.” Apply a pulse-
width control VINIT signal generated from an external		(VINIT)		100Ω
event trigger to the camera. The internal reset pulse
					R2
will be latched to Hd and at 5th HD timing from the
			4.7k R1
external pulse leading edge (negative going edge). The
CCD discharge pulse will be generated to clear the
			VINIT Input Schematic
images. The internal VINIT will be generated at the
following edge (positive going edge) of the external

pulse, resetting the internal timing including the video sync. The shutter speed is the same as the external pulse width, but the integration delays 5H from the leading edge. For the immediate reset option, please contact PULNiX.

FIGURE 10. External Pulse Width Mode

External

Pulse

Width

VINIT

Hd

Internal VINIT

Min 1.5H

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

3H

Transfer Gate Pulse

Discharge pulse

6H

7 H X Exposure Time

EXPOUT	Exposure Time
		X

Composite

Video

For the progressive format, one frame of video output will start from the rising edge of the pulse width control. At async mode with external pulse input high, the video output will be disabled as the camera continues discharging the CCD image, providing black video only.

TM-6710/6710CL High-Speed Progressive Scanning CCD Camera