84
•
Technical Specifications
Calibir 640 GigE IR Camera User's Manual
External Input Details
•
Opto-coupled with internal current limit.
•
Single input trigger threshold level
(TTL standard: <0.8V=Logical LOW, >2.4V=Logical HIGH. See lineDetectionLevel feature).
•
Used as trigger acquisition event, counter or timestamp event, or integration control.
•
User programmable debounce time from 0 to 255µs in 1µs steps.
•
Source signal requirements:
•
Single-ended driver meeting TTL, 12V, or 24V standards (see table below)
•
If using a differential signal driver, only one input can be used due to the shared input
common (see details below)
External Input DC Characteristics
Operating Specification
Minimum
Maximum
Input Voltage
+3 V
+36 V
Input Current
7 mA
10.1 mA
Input logic Low
0.8 V
Input logic High
2.4 V
Absolute Maximum Range before Possible Device Failure
Absolute Ratings
Minimum
Maximum
Input Voltage
–36 Volts
+36 Volts
External Input: Using TTL/LVTTL Drivers
•
External Input maximum current is limited by the Calibir circuits to a maximum of 8mA.
10
9
8
7
6
5
4
3
2
1
Camera IO
Interface
User IO
Power
Imax = 8mA
LVTTL / TTL
Push-Pull
Buffer
External Signal 0
(Common Ground)
( Input 0 )
