AW00123409000 Physical Interface
Basler ace USB 3.0 83
Currents
The leakage current in the "off" state should usually not exceed approximately 60 µA and will
typically be much lower (e.g. approximately 4 µA at 25 °C (+77 °F) housing temperature).
The actual leakage current depends on camera operating temperature and production spread
of electronic components.
The maximum load current allowed through the output circuit is 50 mA.
There is no specific minimum load current but you need to consider several facts:
the leakage current will have stronger effect when load currents are low
the propagation delay of the output increases as load currents decrease
higher-impedance circuits tend to be more susceptible to EMI
higher currents yield higher voltage drop on long cables.
As shown in Figure 45, shows the applicable electrical circuit when a GPIO line is set to operate as
an output. The figure is drawn to specifically apply to pin 1 (Line 3) as an example but, with the
necessary modifications, it equally applies to pin 3 (Line 4).
For more information about GPIO pin assignments and pin numbering, see Section 5.2.1 on
page 68.
For more information about setting the GPIO line operation, see Section 5.11 on page 91 and
Section 5.12 on page 95.
6-pin
Receptacle
+3.3 VDC
(Typical)
Pull Up Resistor
Camera
+3.3t o +24
VDC
V oltage
Output
Signal
toYou
Ground for Direct-
coupled GPIO
FPGA Output
1
6
3
4
2
5
Fig. 45: Direct-coupled GPIO Line Schematic with the GPIO Line Set as an Output and with a Typical Voltage
Output Circuit (Illustration for Pin 1 as an Example; Simplified)
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