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
SY NC 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
Ω
4.1V
32mW
1.5
µ
s 6.5
µ
s 2
µ
s 14
µ
s
5V 4.8mA 1K
Ω
4.8V
23mW
1.5
µ
s 5
µ
s 17
µ
s 40
µ
s
12V 9.2mA 1.2K
Ω
11.2V
101mW
1.5
µ
s 11.2
µ
s 2
µ
s 20
µ
s
12V 4.9mA 2.4K
Ω
11.8V
58mW
1.5
µ
s 8.5
µ
s 17
µ
s 55
µ
s
24V 9.5mA 2.4K
Ω
23.2V
217mW
1.5
µ
s 22
µ
s 2
µ
s 37
µ
s
24V 5mA 4.8K
Ω
23.8V
120mW
1.5
µ
s 12
µ
s 17
µ
s 105
µ
s
