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MultiCam Boards Documentation > MultiCam Documentation > MultiCam User Guide > The Channel Class > Channel Parameter User Notes > Grabber Configuration Category > SyncMode Parameter

SyncMode Parameter

ANALOG

This operating mode is installed when the only timing information available from the camera is the composite video signal.

Consider a MultiCam channel owning such a camera. The timing unit controlling the channel automatically assumes the analog synchronization mode. This means that the timing unit extracts the synchronization out of the video signal supplied through the relevant camera connector.

The timing unit locks itself to the camera synchronization with a phase lock loop operating at the camera horizontal frequency.

A special care is taken to keep the phase jitter inherent to this operational mode at a minimum.

DIGITAL

This operating mode is installed when the camera delivers the timing information through a set of digital lines.

Consider a MultiCam channel owning such a camera. The timing unit controlling the channel automatically assumes the digital synchronization mode. This means that the timing unit exploits the set of digital timing signals supplied by the camera through the associated connector.

Namely, the timing unit uses a pixel clock, a horizontal reference and a vertical reference issued by the camera.

MASTER

This operating mode is installed when the camera is due to receive its timing information from the part of the board. The board is the timing master of the camera.

Consider a MultiCam channel owning a camera working in this manner. The timing unit controlling the channel automatically assumes the master synchronization mode. This means that the timing units delivers horizontal and vertical drive synchronizing signals to the camera through the associated connector.

The basic timing reference for a channel working in the master synchronization mode is an internal resource called the clock synthesizer.