Digital Output - Timing - XIMEA xiQ series Technical Manual

3.8.4.4.6. Output Wiring Example: Driving the trigger input of a strobe controller
The digital output can be used to drive a strobe controller according to the table below.
Driving the trigger input of a strobe controller
Trigger Opto-isolated
polarity controller input
Positive Yes
edge
Negative Yes
edge
Positive No
edge
Negative No
edge
table 3-29, digital output, wiring examples
3.8.4.5. Digital Output – Timing
Typical input delay between FPGA_Output to Digital Output
Edge Type Typ. delay [μs]
Off -> On
On -> Off
table 3-30, digital output, typical timing
Note: Measured at conditions: V
Output delay depending on output current:
Output current OFF->ON
2mA 0.55μs
5mA 0.55μs
10mA 0.55μs
25mA 0.55μs
table 3-31, digital output, current depending timing
Note: Measured at conditions: V
xiQ - Technical Manual Version 1.0
Output Wiring
delay
0.5µs figure 3-33
0.5µs figure 3-35
155µs figure 3-36
0.5µs figure 3-36
0.5
155
=18V, T =27°C
OUTPUT AMBIENT
ON->OFF
184μs
182μs
133μs
113μs
=11V, T =25°C
OUTPUT AMBIENT
Description
Not recommended in cases when short delay time is required.
Output delay is much longer than in other wiring examples. Use
external pull up in case that no pull up at controller input is
used.
Note that external pull up is not used in this case. Assume that
internal pull up at the controller input is used.
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