JAI CV-M30 - Manual (Page 10)

CV-M30
6.4. Other Functions
6.4.1. Double Speed Mode
The CV-M30 camera revision D operates only with double speed scanning.
Double speed is 120 fields per second. (V= 119.88Hz. H=31.468 kHz).
To use this mode.
Set:
6.4.2. Partial Scanning Mode
To obtain a higher frame rate, the partial scanning can be used. In this mode only the vertical
center part of the CCD sensor is read out. Partial scan will only work in non-interlaced mode.
The useable image format is
Full non-interlaced 752(h) x 242(v) pixels (120 fields/second in continuous).
1/2 partial 752(h) x 111(v) pixels (240 fields/second in continuous).
1/3 partial 752(h) x 67(v) pixels (360 fields/second in continuous).
With external trigger and partial scan the maximum field rate is less then the above shown. The
maximum field rate is given of the actual shutter time plus the readout time.
To use this mode.
Set: SW1-4 and SW1-6 on the rear panel as follows:
Full SW1-4 OFF, SW1-6 OFF
1/2 partial SW1-4 ON, SW1-6 OFF
1/3 partial SW1-4 ON, SW1-6 ON
Note:
In this mode, the shutter speed has limitation depending on the selected range.
Edge pre-select mode.
1/2 partial: Double speed 1/250 to 1/20,000s.
1/3 partial: Double speed 1/500 to 1/20,000s.
6.5. Timing Charts
6.5.1. Video Timing (H)
1clk = 34 ns
Fig. 9. Horizontal timing
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