Service manual

The S
TELLAR
MPEG-2 Decoder
3
1
The output bit rate can be set between 1.0 and 9 2Mbit/s.
The SMPTE 310M output is a 19.39 Mbit/s data stream.
SDI genlock The decoder optionally provides a black and burst reference input for genlocking of
the SDI video output. The line frequency of the composite video output is also locked
to the external reference but not the SCH phase.
VBI signals for PAL and
NTSC systems
The following table gives an overview over the VBI signals supported for PAL and
NTSC systems and their treatment in the S
TELLAR
.
VBI signal Recovered from the TS Inserted locally in
the decoder
PAL NTS
C
Teletext
System B
The S
TELLAR
restores the tele-
text data from the transport
stream multiplex and modu-
lates and reinserts the teletext
signal in the composite video
output or embeds it in the SDI
output.
no yes no
Teletext
System C
The S
TELLAR
restores the tele-
text data from the transport
stream multiplex and modu-
lates and reinserts the teletext
signal in the composite video
output or embeds it in the SDI
output.
no no yes
VITS No. VITS lines are
inserted locally in
the decoder. The
S
TELLAR
provides
internally stored
VITS lines. These
signals may be
inserted in the
composite output of
the decoder. Up to
two VITS lines per
field can be inserted
in the composite
output or embedded
in the SDI output in
the decoder.
yes yes
Transparen
tVBI
4 VBI lines per fields are
transferred transparently. The
transparent VBI can be inserted
in the composite output or
embedded in the SDI output.
no yes yes