Vega 30 Router User Manual
Input Signal Timing Use Cases
Output Video Timing - Line Sync and Offset 8.3
Issue1 Revision 1
Page 156
© 2017 SAM
8.3 Input Signal Timing Use Cases
The following video input signal timing cases are considered:
•
Timing Case 1)
Input arriving some pixels
earlier
than reference.
See Figure 119 and Table 52 in
Section 8.3.1 "Timing Case 1)
Input Arriving some Pixels Earlier than
•
Timing Case 2)
Input arriving co-timed with reference.
See Figure 120 and Table 53 in
Section 8.3.2 "Timing Case 2)
Input Arriving Co-timed with Reference" on page
•
Timing Case 3)
Input arriving some pixels
later
than reference.
See Figure 121 and Table 54 in
Section 8.3.3 "Timing Case 3)
Input Arriving some Pixels Later than
It is assumed that:
•
License options VG10-CSx are active on the Vega 30 unit for an output.
•
Line Sync feature is enabled on the output.
•
Lines
offset and
Pixels
offset controls are initially set to 0 in each case.
An output offset must be set up to cope with the timing of any input source routed to the
output destination. It must be set up for the latest-arriving input signal.
Note:
A change in the input signal timing or to the overall offset value (
Lines Offset
+
Pixels
Offset
) is reflected in the reported
Reference Offset
value.
Increasing the
Lines Offset
value by 1 will produce an increase in the
Reference Offset
value by an amount equal to one line in the video standard for the signal.
For example,
1 line in 1080i59 is 2200 pixels, so the
Reference Offset
value will change by that amount.
