V0.8
Page 5 of 13
Cobalt Digital 2005
User settings. The second copy of the deserializer goes is to an FPGA who’s function is to select which
input goes to which output (SD digital and/or analog) and what overlays are to be applied to individual
outputs
Conversion Capabilities
The 5821-D has extensive re-format and down conversion capabilities. It can act as a downconverter,
aspect ratio converter (ARC) and frame rate converter.
The Format conversions are listed in the chart below.
From
To
SD
1080 sF 23.98
486 i 29.97
1080 p 23.98
486 i 29.97
1080 sF
24
----
none
1080 p
24
----
none
1080 i 25
575 i 25
1080 p 25
575 i 25
1080 i 29.97
486 i 29.97
1080 p 29.97
486 i 29.97
1080 i
30
----
none
1080 p
30
----
none
720
p 25
575 i 25
720
p 29.97
486 i 29.97
720
p 30
---- none
720
p 50
575 i 25
720
p 59.94
486 i 29.97
720
p 60
---- none
486
i 29.97
486 i 29.97
575
i 25
575 i 25
Notes:
1.
All rates translated to effective frame rates, interlaced rates “ i ” are two times the number shown.
For example, i 29.97 is 59.94 fields per second (two fields per frame thus the interlaced frame rate
is 29.97); but progressive “ p ” 29.97 is 29.97 frames per second.
2.
SD active line rates are PAL (575) and NTSC (486).
3.
The 5821-D cannot accept native 720 p23.98 or sF23.98, however it can convert those signals if
they are delivered inside a p59.94 transportation wrapper (as typically done with this format) and
processed as p59.94.
