Vega 30 Router User Manual
Input Signal Timing Use Cases
Output Video Timing - Line Sync and Offset 8.3
Issue1 Revision 1
Page 157
© 2017 SAM
8.3.1 Timing Case 1)
Input Arriving some Pixels Earlier than Reference
Figure 119 Vega 30 - Video Input Timing Cases and the Reference Offset Control:
Timing Case 1) Input Earlier than Reference
Input early compared to Ref,
Positive
Reference Offset
value
Output with added delay
Video Input Signal
Timing
Offset
Setting
Reference
Offset
value shown
(see Figure
Comments
Reference Offset
Video Output Signal
Timing
(with respect to
reference)
Video Buffer Storage
(Pixels)
(Pixels)
(Pixels)
Case 1) Input Earlier than Reference
•
Set Offset to 0.
0
A
Reference Offset
reported is a positive
number.
Output is timed up
with reference.
Storage used to buffer
the input by A pixels.
Thus delaying the input
•
Introduce an offset of B pixels:
+B
(A+B)
Output is late by
B pixels.
Storage used to buffer
signal by A+B pixels.
Table 52 Input Timing Case 1)
