JAI CV-A33CL Input/Output of Timing Signals, Trigger Modes, Input of Timing Signals

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CV-A33CL

6.3. Input/Output of Timing Signals

6.3.1. Input of Timing Signals

It is not possible to synchronize the camera from an external sync source except by an extern trigger pulse. The camera will always run with its internal X-tal controlled timing.

Trigger input through Camera Link.

TI=0

Trigger input as TTL on pin #10 on 12 pin Hirose.

TI=1

The trigger polarity is active low.

TP=0

Trigger input can be changed to active high.

TP=1

The trigger input on pin #10 on the 12 pin Hirose connector can be 75 Ω terminated with the internal switch SW 300-1 ON.

6.3.2. Output of Timing Signals

To synchronize the video data transfer from the camera the following signals are available in a

base configuration of Camera Link:

 

FVAL

Frame valid

High for valid Frame

LVAL

Line valid

High for valid line

PCLK

Pixel clock

 

DVAL

Data valid

High for valid data

EEN

Exposure enable

Low during exposure

See the full connector pin assignment for Camera Link in chapter 5.3 and 5.4.5

For complete documentation on the Camera Link standard, please contact your JAI distributor. EEN is also found as a TTL signal on pin #9 on the 12 pin Hirose. EEN is low during exposure.

6.4. Trigger Modes

This camera can operate in 4 primary modes. 1 non-triggered, 2 external asynchronous trigger modes and auto trigger mode.

1.

Normal continuous Mode. TR=0

Pre-selected exposure. (SM=0, SM=1)

2.

Edge Pre-select Mode. TR=1

Pre-selected exposure. (SM=0, SM=1)

3.

Pulse Width Control Mode. TR=2

Pulse width controlled exposure.

4.

Auto Trigger Mode. TR=3

>3 line window, <5404 fps

In normal continuous mode (TR=0) and edge pre-select mode (TR=1) the shutter time can be selected from the normal 8 fixed steps (SM=0), or it can be selected from the 2 to 493 steps programmable (SM=1). In programmable exposure the actual exposure is 1 LVAL less than the PE value.

The trigger pulse width should be >1 LVAL to <3 FVAL. (>16.8 ∝sec. to <25 msec.)

In pulse width control (TR=2) the trigger pulse width should be >1 LVAL to <237 FVAL. (>16.8 ∝sec. to <2 sec.)

Windows of interest (WS=1) can be used in normal, edge pre-select and pulse width control mode. (TR=0, TR=1 and TR=2).

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Contents CV-A33CL CV-A33CL Standard Composition Main FeaturesGeneral Locations and Functions LocationsPin Assignment Pin Multi-connector DC-IN/TriggerDigital Output Connector for Camera Link Input and Output Circuits EEN outputCamera Link interface CV-A33 Camera Camera Link CableCmos Sensor Functions and OperationsBasic functions Pixel principleCV-A33 Cmos Sensor array Cmos Sensor principle diagramColumn Process Window of Interest Auto Trigger Window of InterestVertical timing Normal mode. Full frame Sensor layout and timingEffective image format Horizontal timing Normal mode. Full frameLval a-synchronous accumulation Lval a-synchronous accumulationTiming for window of interest Window of interestOutput of Timing Signals Input/Output of Timing SignalsInput of Timing Signals Trigger ModesEdge Pre-select Mode Continuous Operation Non triggeredVertical timing for edge pre-select min. exposure Pulse Width Control Mode Vertical timing for pulse width control min. exposureAuto trigger Mode Vertical timing for auto trigger functionOther Functions Configuring the CameraSwitch setting inside RS-232C control CV-A33CL command list Parameter RemarksCamera Control Tool for CV-A33 Window from camera control toolSpectral sensitivity External Appearance and DimensionsSpecifications Specification table CV-A33CLAppendix PrecautionsTypical Sensor Characteristics Camera type Users Mode Settings Users ModificationsUsers Record
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