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Area Scan Machine Vision USB 3.0 Camera User Manual
53
Please connect to GND pin first to protect GPIO pin and then input voltage to Line2
pin.
2.
Configure Line2 to output pin
The available maximum current is 25mA and the output impedance is 40Ω.
When the environment temperature is 25 degree centigrade, the relationship among
external voltage, impedance and the output low level can be shown in Table 3-7.
Table 3-7
The Parameter of Output Logic Low Level
External Voltage
External
Resistor
VL
(
GPIO2
)
3.3V
1KΩ
160mV
5V
1KΩ
220mV
12V
1KΩ
460mV
24V
1KΩ
860mV
30V
1KΩ
970mV
When the external voltage of 1KΩ external resistance turns to 5V, features of output
logic level and electric feature in GPIO2 configuration can be shown in Figure 3-54
and Table 3-8.
Logic 1
Output Level
Logic 0
Output Level
Internal
Logic
TDR
TDF
TF
TR
Figure 3-54
Output Logic Level
Table 3-8
Output Electric Feature
Parameter
Symbol
Value
Output Logic Low Level
TR
0.06us
Output Logic High Level
TF
0.016us
Output Rising Time
TDR
0.03us
Output Falling Time
TDF
0.28us