Fairchild CAM CCD-2KLV.TDI Providing External Triggering, Direct Trigger, Lvds Trigger Source

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PRELIMINARY

3.3 Providing External Triggering

There are two ways to provide external triggering to the 2K & 4K TDI LVDS cameras:

•Directly send the external trigger to the camera’s DB15 connector as mentioned earlier.

•Provide an external trigger to the frame grabber and it will send the EXSYNC signal to the camera.

3.3.1Direct Trigger

In this configuration, the EXSYNC is sent directly to the camera from the external LVDS trigger source (frame grabber, shaft encoder, etc.).

3.3.2LVDS Trigger Source

If the external trigger source is LVDS, it can be directly interfaced to the camera as illustrated below.

CAMERA CONNECTOR

J5

EXSYNC	12
+	4

EXSYNC -

DSUB 15-P

DIRECT TRIGGER

Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Line Scan Camera User’s Manual • Rev 073004 • 18 of 38

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Contents Osprey Camera Series Fairchild Imaging Osprey Camera Series USER’S Manual Table of Contents Handling Instructions TroubleshootingProviding External Trigger Using PCI-1424 Frame Grabber Product Support2K x 96 TDI Sensor Architecture Camera HighlightsDescription 4K x 96 TDI Sensor ArchitectureProgrammability UsabilityFull Spectrum of Applications Image Sensor Block Diagram CCD525 2048 x 96 stagesBlock Diagram CCD545 4096 x 96 stagesBlock Diagram 2K & 4K TDI Camera D S2K/4K TDI Camera Timing Diagram 2K TDI LvdsThermal Considerations Good TDI Synchronization Installation OverviewCamera Hardware Interface Bad TDI SynchronizationConnectors, Pinouts, and Cables Camera Pin # Signal NameLvds Data, J7 Signal Name Lvds Data, J8 Camera Pin # Power Up LED = RED Power SupplyLED Indicator Status Lamp Master Mode LED = GreenCamera Control Quick Start with Lvds InterfaceControl Inputs Providing External Triggering Direct TriggerLvds Trigger Source Frame Grabber Receives Trigger TTL Trigger SourceFrame Mode A B B E R How to operate in framing mode System ConnectionTDI Length Selection High LOWHow to Modify Gain & Offset Values Gain and Offset CalibrationData Bus StrobeLval Horizontal Synchronization Camera Dimensions and Mounting Mechanical and Optical ConsiderationsLenses Preliminary Positioning Accuracy of the Sensor Chip in the Camera IlluminationLight Sources Lens Modeling 2K and 4K Lvds Cable HarnessPreventing ESD Damage Cleaning the Sensor WindowElectrostatic Discharge Protecting Against Dust, Oil and ScratchesUse the Camera Control Interface to Perform Checks TroubleshootingCheck Simple Things First Other Areas You Should CheckEverything Seems to be Working, But No Image Data Clocking/Output SignalsNo Output or Non Specification Output Horizontal Lines or Patterns in OutputBits That Do Not Change Value Product Support Providing External Trigger Using PCI-1424 Frame Grabber Reference aGetting Speed with Low Noise and Low Power Introduction to LvdsHow Lvds Works Lvds Standard