Characteristics Of Optical Interface; Pulse Generator - IAI SP-20000M-CXP2 User Manual

5.4.3

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 RT (us)
Time Delay Fall TDF (us)
Fall Time FT (us)
5.5

Pulse Generator

The SP-20000-CXP2 has a frequency divider using the sensor 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 - 8 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.
SP-20000M-CXP2 / SP-20000C-CXP-2
User Power（VCC）
3.3V 5V
0.54 0.54
1.2 1.2
1.5 1.5
3.6 3.4
Fig.9 Optical interface characteristics
Value
1
Pulse Generator
Length Start End
Point Point
1 0 1
1 0 1
1 0 1
1 0 1
User
12V
Power
24V
0.62 0.68
2 3
2.4 2.1
4.5 6.8
Repeat Clear Clear
Count Source Inverter
0 Off True
0 Off True
0 Off True
0 Off True
- 19 -
SP-20000
Output line
270Ω
Voltage
Clear Clear
Activation Sync
Mode
Off Async Mode
Off Async Mode
Off Async Mode
Off Async Mode