Data Translation DT3162, User Manual

Page: 22 / 80

Sync Signals
12
• The vertical sync pulse width
−
Values range from 1 to
4095 lines, in increments of 1. Setting this value determines the
the number of lines that the vertical sync output pulse is in its
active state (determined by the sync polarity).
• The sync output polarity
−
Values are ActiveHigh or ActiveLow.
Selecting an active-high polarity means that the sync output
pulses are low-to-high going signals; selecting an active-low
polarity means that the sync output pulses are high-to-low going
signals.
Note: You set the horizontal sync output frequency by specifying
the line frequency, described on page 17 . The vertical sync output
frequency is the line frequency divided by the number of lines per
frame.