Nvidia Quadro CX SDI, Руководство пользователя

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NVIDIA Corporation
Quadro FX 4800/5800 and Quadro CX SDI User’s Guide – Version 1.0 11
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HAPTER
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NVIDIA Graphics-to-SDI
Connecting the SDI Video Output
Refer to Figure 2.4 .
• 4:4:4/4:2:2:4/4:4:4:4 dual ‐ link signals are sent to the FILL and KEY connectors.
• 4:2:2 single ‐ link signals are sent to the FILL connector only.
In application control mode, using the APIs, an additional 4:2:2 signal can be sent to the
KEY connector.
Connecting to an External Sync Source
• You can genlock the output to an external digital or analog sync source. Several
systems can also be frame ‐ locked.
NVIDIA Genlock supports the following two external synchronization signal types:
•
SDI
•
Composite, which can be one of the following:
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 INPUT BNC connector as
indicated in Figure 2.4 , then select the corresponding signal type (SDI or composite)
using the NVIDIA Control Panel.
About the Software
The NVIDIA SDI software lets you specify the
• SDI signal format
• Color formats
• Synchronization method
• Gamma correction
• Color ‐ space conversion
Graphics ‐ to ‐ SDI functionality can be set up and controlled in two basic ways—using the
NVIDIA Control Panel for 8 ‐ bit SDI output from the desktop, or using the NVIDIA SDI
API for 8 ‐ , 10 ‐ , or 12 ‐ bit SDI output from an application.