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
Summary of Contents for DT3152-LS
Page 1: ...MACH Series UM 16481 F DT3152 LS User s Manual ...
Page 4: ......
Page 16: ...About this Manual xvi ...
Page 17: ...1 1 Overview Features 2 Supported Software 4 Accessories 6 ...
Page 142: ...Chapter 4 126 ...
Page 153: ...137 A Specifications ...
Page 156: ...Appendix A 140 ...
Page 162: ...Appendix B 146 ...
Page 192: ...Appendix C 176 ...
Page 193: ...177 D Asynchronous Reset Cameras ...
Page 196: ...Appendix D 180 ...
Page 210: ......
Page 214: ......