Allied International GX3300C Digital Camera User Manual


 
GX3300 Technical Manual
Page 13
SYNC OUTPUTS (1 to 4)
These signals are optically isolated and require the user to provide a high voltage level
(USER VCC) and signal common (USER GROUND). USER VCC can be from 5V to
24V. ICC is a function of USER VCC and load resistor R. An example of the functional
circuit is indicated in the following diagram.
5V TO 24V
100K
V LOAD
442R
PIN 10. USER VCC
R
VCC-USER
GND-USER
SYNC OUT
USER TRIGGER
CIRCUIT
T4
CAMERA
CIRCUIT
T2
TLP281-4GB
1
2
16
15
T3
IF = 5mA
CAMERA
LOGIC SIGNAL
3.3V CAMERA
LOGIC SIGNAL
SYNC OUT
SIGNAL
T1
Various USER VCC values and load values for the above circuit are indicated in the
following table:
USER
VCC
USER
ICC
R
LOAD
V LOAD
R POWER
DISSIPATION
T1 T2 T3 T4
5V 8mA 500 4.1V 32mW
1.5
µs
6.5µs 2µs 14µs
5V
4.8mA
1K 4.8V 23mW
1.5
µs
5µs
17
µs
40µs
12V
9.2mA
1.2K
11.2V 101mW
1.5
µs
11.2
µs
2µs 20µs
12V
4.9mA
2.4K
11.8V 58mW
1.5
µs
8.5µs
17
µs
55µs
24V
9.5mA
2.4K
23.2V 217mW
1.5
µs
22µs 2µs 37µs
24V 5mA
4.8K
23.8V 120mW
1.
5µs
12µs
17
µs
105
µs