7.Electrical Interface
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 49
Rising edge delay: <50μs (0°C~45°C), parameter description as shown in Figure 7-4
Falling edge delay: <50μs (0°C~45°C), parameter description as shown in Figure 7-4
Different environment temperature and input voltage have influence on delay time of opto-isolated input
circuit. Delay time in typical application environment (temperature is 25°C) is as shown in
Parameter
Test condition
Value (μs)
Rising edge delay
VIN=5V
3.02
~
6.96
VIN=12V
2.46
~
5.14
Falling edge delay
VIN=5V
6.12
~
17.71
VIN=12V
8.93
~
19.73
Table 7-4 Delay time of opto-isolated input circuit in typical application environment
TRIGIN _F_ DELAY
TRIGIN_R_DELAY
2V
0.8V
LINE0+
INPUT 0
Figure 7-4 Parameter of opto-isolated input circuit
Rising time delay (TRIGIN_R_DELAY): the response time from LINE0+ rises to 50% of amplitude to
INPUT0 decreases to 0.8V
Falling time delay (TRIGIN_F_DELAY): the response time from LINE0+ decreases to 50% of
amplitude to INPUT0 rises to 2V
7.3.2.2.
Line1 (Opto-isolated Output) Circuit
Hardware schematics of opto-isolated output circuit is shown as Figure 7-5.
9
1
2
3
4
5
6
7
8
12
11
10
Rexternal
EXVCC
Line1+
Line1-
OUTPUT1
External circuit
Figure 7-5 Opto-isolated output circuit
