AD-081CL
- 8 -
Fig.5. Trigger circuit
Fig.6. XEEN output circuit
5.3
Input and output circuits
In the following schematic diagrams the input and output circuits for video and timing signals
are shown.
5.3.1
Iris Video output
This signal can be used for lens iris control in Continuous mode.
The signal is taken from the CCD sensor output before the gain
circuit. The video output is without sync. The signal is 0.7 V p-p
from 75
without termination. The signal from Imager 1 is used
for this purpose.
5.3.2
Trigger input
An external trigger input can be applied to pin 10
and 11 of 12-pin Hirose connector (when the
command TI1/TI2=1 have been set).
The input is AC coupled. To allow long pulses the
input circuit is designed as a flip-flop circuit. The
leading and trailing edges of the trigger pulse
activate the circuit.
The trigger polarity can be changed by
TP1/TP2=1.
Trigger input level 4 V
2 V.
Trigger can also be applied through the Camera
Link connector, when the commands TI1/TI2=0
have been sent.
5.3.3
XEEN (Exposure Enable) output
XEEN is available on pin 6 and 7 of the 12-pin HR
connector. 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.
5.3.4
Camera Link Interface
The video output is possible as 10/8-bit monochrome signals via standard Camera Link
interface.
The pin configuration of 26-pin connector conforms to Camera Link BASE configuration.
However, since AD-081CL camera has various outputs, pin assignment depends on the specific
output mode selected.
For details, please refer the table shown on the next page.
300 mV
500 mV
GND
75
Video
Output
800 mV
300 mV
500 mV
300 mV
500 mV
GND
75
Video
Output
GND
75
Video
Output
800 mV
800 mV
Fig.4. Iris video circuit
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75
Ω
SW302.1
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75
Ω
SW302.1
GND
+5V
15k
TTL
1k
GND
100n
1k
68k
100k
1n
75
Ω
Trig input
pin #10 & #11
SW302.1
GND
+5V
2
2
10k
2k2
75
TTL
100
Pin #6 & #7
XEEN
output
GND
+5V
2
2
10k
2k2
75
TTL
100
Pin
XEEN
output
