Table of Contents
Advertisement
Page 26
18.5. WORD CLOCK PHASE ALIGNMENT TO VIDEO
Whenever mathematically possible, the DCD-8 will achieve accurate alignment between the
vertical sync of the incoming video and the rising edge of the output wordclock. Accuracy is
per the original AES requirement of 5% of the sample clock period. This phase adjustment
begins immediately after intial lock has been achieved. Please allow up to 30 seconds for
this state to be realized.
The table below indicates when alignment will occur between the input video "reference
point" (vertical sync) and the output wordclock rising edge.
DCD-8
Domain A
WC
Output
Rates
NOTES: All outputs are rate locked at all times.
18.6. VIDEO INPUT FORMATS
The following table lists all the video formats recognized by the DCD-8 as reference:
Not supported are the low frame rate 720p formats.
HD 30
HD 60
30.000
32000.000
42293.706
42336.000
44055.944
44100.000
Y
44144.100
45937.500
45983.438
46033.966
46080.000
47952.048
48000.000
Y
48048.000
50000.000
50050.000
Video Input Types and Rates
PAL
Slow PAL
24
HD 25
HD 50
HD 24
25.000
24.000
Y
Y
Y
Y
DCD-8 User Manual
NTSC
Slow PAL
23.976
HD 29.97
HD 59.94
HD 23.976
29.970
23.976
Y
Y
Y
Y
Advertisement
Table of Contents
