NVIDIA Corporation
Quadro FX 4000 SDI User’s Guide
– Version 2.1
7
C
HAPTER
2
NVIDIA Graphics-to-SDI
Connecting the SDI Video Output
Refer to
• 4:4:4/4:2:2:4/4:4:4:4 dual-link signals are sent to the
Fill Out
and
Key Out
BNC
connectors (fill + key signals are sent to the corresponding BNC connectors).
• 4:2:2 single-link signals are sent to the
Fill Out
BNC connector only.
In application control mode, using the APIs, an additional 4:2:2 signal can be sent to the
Key Out
BNC connector.
Connecting to an External Sync Source
• You can genlock the output to an external digital or analog sync source.
NVIDIA Genlock supports the following two external synchronization signal types:
•
SDI
•
Composite, which can be one of
Composite Bi-level (NTSC or PAL sources use bi-level composite signals.)
Composite Tri-level (HDTV sources commonly use tri-level composite signals.)
• To use an external sync source, connect the sync signal to the appropriate BNC
connector as indicated in
You can connect to both types of sync sources at the same time. The software gives
precedence to the SDI signal, but you can use the control panel to choose which signal
to use (see
“Synchronizing the SDI Output to an External Source” on page 19
.)
