Line 1 Opto-isolated Output Circuit
The Line 1 opto-isolated output circuit in camera I/O control is shown below.
The maximum output current of Line 1 is 25 mA.
Opto-isolated output electric feature is shown in below (when the external voltage is 3.3 VDC and the
external resistance is 1 K).
Parameter Name
Parameter Symbol
Value
Output Logic Level Low
VL
575mV
Output Logic Level High
VH
3.3V
Output Rising Time
TR
8.4us
Output Falling Time
TF
1.9us
Output Rising Delay
TDR
16.6us
Output Falling Delay
TDF
3.6us
With different external voltage and resistance, the corresponding current and the parameter of
output logic level low are shown below.
External Voltage
External Resistance
VL
Output Current
3.3V
1KΩ
575mV
2.7mA
5V
1KΩ
840mV
4.1mA
12V
2.4KΩ
915mV
4.6mA
24V
4.7KΩ
975mV
4.9mA