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5.5.3
Characteristics of optical interface
The relationship of the input signal to the output signal through the optical interface is as follows.
270Ω
Time Delay Rise
TDR (us)
Rise Time
Time Delay Fall
TDF (us)
Fall Time
5.6
Pulse Generator
The EL-2800-GE2 has a frequency divider using the internal pixel clock as the basic clock and four
pulse generators. In each Pulse Generator, various Clear settings are connected to GPIO. The
following shows Pulse Generator default settings.
Table - 10
Pulse Generator default settings
Display Name
Clock Pre-scaler
Pulse Generator
Selector
-
Pulse Generator 0
-
Pulse Generator 1
-
Pulse Generator 2
-
Pulse Generator 3
Note: When Pulse Generator Repeat Count is set to "0", the camera is operating in Free Running mode.
However, based on the above default settings (Length=1, Start Point=0 and End Point=1), Pulse Generator stops at
High output. Therefore, if Start Point=0 and End Point=1 are configured, Length should be "2" as the minimum active
width.
EL-2800M-GE2 / EL-2800C-GE2
User Power（VCC）
3.3V
0.54
RT (us)
1.2
1.5
FT (us)
3.6
Fig.10
Optical interface characteristics
Value
1
Pulse Generator
Length
Start
End
Point
Point
1
0
1
1
0
1
1
0
1
1
0
1
5V
12V
24V
0.54
0.62
0.68
1.2
2
3
1.5
2.4
2.1
3.4
4.5
6.8
Repeat
Clear
Count
Source
0
Off
0
Off
0
Off
0
Off
- 38 -
EL-2800-GE2
User
Power
270Ω
Clear
Clear
Clear
Inverter
Activation
Sync
Mode
True
Off
Async Mode
True
Off
Async Mode
True
Off
Async Mode
True
Off
Async Mode
Output line
Voltage
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