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Operation
The TM-1400 outputs the progressive scan image with an electronic shutter in two different formats:
•Progressive scanning digital and analog output
The CCD signal goes through A/D and D/A converters and through 10-bit in, 8-bit out look-up table (LUT). The digital output is available from 31-pin connector with RS-644 format (50MHz clock rate).
The analog output is the same as 75 ohms, 1Vp-p format at 30Hz rate available from BNC and 12- pin connector.
•Partial scan output (display output)
-Partial scan: 500 lines at 56 frames per second.
-Partial scan: 250 lines at 98 frames per second.
Note: Minimal blooming may occur under partial scanning mode due to the nature of the CCD.
3.4 Electronic Shutter
For more information about the electronic shutter, please see Section 1.2 on page 2.
3.5 Asynchronous Reset
ASYNC RESET
VINIT
VD
TG (TRANSFER GATE)
DISCHARGE PULSE
PROGRESSIVE OUTPUT
VIDEO
Stand-by Image | Shutter Video | Stand-by Image |
For more information about Asynchronous Reset, please see Section 1.2 on page 2.
3.5.1External VINIT With Pulse Width
The TM-1400 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 event trigger to the camera. The internal reset pulse will be latched to HD and at the first HD timing from the external pulse leading edge (negative going edge). The CCD discharge pulse will be generated to clear the images. The internal VD 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 1H from the leading edge. For the immediate reset option, please contact JAI PULNiX.
For the progressive format, one frame of video output will start from the rising edge of the pulse width control. In 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-1400 Series Progressive Scan Shutter Cameras 
