DCAM560C ToF Camera User Manual -20211210

18
Pin Description
Pin
Designation
Direction
Description
1
RS485-A
I/O
RS485-A
2
RS485-B
I/O
RS485-B
3
Ext_Trigger
INPUT
External trigger input（3.3V-20V）
4
Exposure_timing
OUTPUT
Control signal output
5
GND
GND
System ground
6
Ext_OUT
OUTPUT
Control signal output from processor
Hardware Trigger Function
Hardware trigger mode is available only when the camera works at slave mode, in
slave mode the camera will wait for the hardware trigger signal on Ext_Trigger.
The EXT_Trigger signal is to driver the MOSFET, External input trigger signal voltage
should range 3.3V-20V, driving current ability should be more than 5mA;
You can use input pin Ext_Trigger to send a hardware trigger signal to the camera. The
hardware trigger can be used to trigger the acquisition start. A hardware debouncer
circuit shall be considered on the EXT_Trigger line.
By default, the hardware trigger is rising edge activated, refer to below exposure
timing:
T1
Exposure Exposure
EXT_Trigger
Camera Exposure
T1
The requirement to T1 should be from 100us to 2ms.
Exposure_timing Pin Description
This pin is an output indicates the whole exposure period of the camera. The internal
circuit of this pin with a pull-up resistor 430Ω.The pull up voltage is 5V. At low level,
the pull-down resistor is 100Ω.
By default, the polarity is low level activated, which means a low-level signal indicates
the exposure period. Please refer to below figure: