DAGE-MTI CCD-100 User Manual page 11

CCD for extended periods of time. The external gate pulse is
placed on the GATE connector pin as shown in the timing
diagram below. The camera has an internal pull-up resistor,
so only a ground closure is necessary. Figure 5 shows the
exact relationship between CCD readout and composite
video. The gate pulse transitions must occur before the CCD
transfer for gating or readout to occur. Figure 6 shows the
gate pulse relationship to video output.
Figure 5: Timing between CCD readout and Video
Figure 6: External Gate Timing and Video Readout