CV-A33CL

5.3. Input and Output Circuits

5.3.1. Trigger input

The trigger inputs on pin #10 12 pin Hirose connector is AC coupled. To allow a long pulse width, the input circuit is a flip flop, which is toggled by the negative or positive differentiated spikes caused by the falling or rising trigger edges.

The trigger polarity can be changed. Trigger input level 4 V ±2 V. It can be 75terminated by internal SW300 on PK8388A. The trigger inputs can be changed to Camera Link input. (TI=0 for CL)

Trig input

 

+5V

15k

 

pin #10

 

 

 

100n

1k

TTL

 

68k

75

100k

 

 

SW 300

1n

1k

GND

 

 

GND

 

 

 

 

 

Fig. 4. Trigger input.

5.3.2. EEN output

On pin #9 on 12 pin HR connector EEN The output circuit is 75 complementary emitter followers. It will deliver a full 5 volt signal.

Output level 4 V from 75. (No termination). EEN is also found in Camera Link.

TTL 100

2k2

10k

2

2

+5V

 

 

 

75

#9/12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EEN output

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

Fig. 5. EEN output

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JAI CV-A33CL operation manual Input and Output Circuits, EEN output