Nvidia Quadro FX 4800 - About the Software

NVIDIA Corporation
Quadro FX 4800/5800 and Quadro CX SDI User’s Guide – Version 1.0 11
C
HAPTER 2
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.