Chapter 2
22
Sync Signals
This section describes the following aspects of the sync signals:
• Sync source,
• Sync Sentinel, and
• Sync Master Mode.
Sync Source
To digitize the incoming video signal, the DT3152-LS frame grabber
board requires sync signals. Area-scan operations require both a
horizontal and a vertical sync signal. Line-scan operations require a
horizontal sync signal only; vertical sync signals are ignored.
illustrates the process of generating the horizontal and
vertical sync signals.
Figure 7: Horizontal and Vertical Sync Signals
video inputs
ADC
current input
composite
sync
source
threshold
extraction
variable-scan
edge
selection
composite,
variable-scan
h/v
external sync
specified input source
line-sync
timing
information
video to
digitize
frame sync
h/v
for
acquisition
Input
source
mux
&
source
video type
Содержание DT3152-LS
Страница 1: ...MACH Series UM 16481 F DT3152 LS User s Manual ...
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Страница 16: ...About this Manual xvi ...
Страница 17: ...1 1 Overview Features 2 Supported Software 4 Accessories 6 ...
Страница 142: ...Chapter 4 126 ...
Страница 143: ...127 5 Troubleshooting General Checklist 128 Service and Support 132 If Your Board Needs Factory Service 136 ...
Страница 153: ...137 A Specifications ...
Страница 156: ...Appendix A 140 ...
Страница 157: ...141 B Connector Pin Assignments Connector J1 Pin Assignments 142 Connector J2 Pin Assignments 144 ...
Страница 162: ...Appendix B 146 ...
Страница 192: ...Appendix C 176 ...
Страница 193: ...177 D Asynchronous Reset Cameras ...
Страница 196: ...Appendix D 180 ...
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