Camera interfaces
118
Alvium USB Cameras User Guide V3.1.3
Input levels
The GPIOs can be connected directly to the system controlling the camera for
voltages up to 5.5 VDC. An external resistor is not necessary.
Output levels
NOTICE
Damage to the camera by high input voltage
Exceeding maximum input voltage can damage the camera.
Keep maximum input voltage below 5.5 VDC.
Parameter
Value
U
in
(low)
-0.3 to 0.8 VDC
U
in
(high)
2.0 to 5.5 VDC
Undefined levels
0.8 to 2.0 VDC
Table 51: GPIOs as input, voltage levels
NOTICE
Damage to the camera by high output current or voltage
The camera can be damaged when connected to a device that exceeds the specified
maximum current or voltage. Consider maximum values:
•
Maximum current = 12 mA per output
•
Maximum Out VCC = 3.3 VDC
Parameter
Value
External output voltage U
out
(low, Off state)
0 to 0.4 VDC
External output voltage U
out
(high, On state)
2.4 to 3.3 VDC
Undefined levels
0.4 to 2.4 VDC
Maximum external output voltage
3.3 VDC
Maximum output current
12 mA
Table 52: GPIOs as output, current and voltage levels
Output voltage in the On state
The voltage level in the On state depends on the load current. Higher currents yield
lower voltage.
