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26
Pin
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A schematic of the TTL input circuitry is shown in
input signals are fed into the engine from external sources via the GPIO connector.
TTL Inputs and Outputs
Figure 11: TTL Input Schematic
03-032-10158-06
Signal
Description
INPUT_0-
Negative component when LVDS signal is arriving on Pin 1
INPUT_1+
LVDS/TTL format (positive)
INPUT_1-
LVDS signal is arriving on Pin 3
GND
INPUT_2+
LVDS/TTL format (positive)
INPUT_2-
LVDS signal
INPUT_3
TTL auxiliary input
OUTPUT_3
TTL auxiliary output
OUTPUT_2+
LVDS/TTL auxiliary output
OUTPUT_0+
LVDS/TTL auxiliary output
OUTPUT_0-
LVDS negative component
OUTPUT_1+
LVDS/TTL auxiliary output
OUTPUT_1-
LVDS negative component
OUTPUT_2-
LVDS negative component
3.3V
1000 Ω
3.3V
TTL
•
Termination: 1000 Ω serial
•
Input current: minimum 0 nA; maximum 2 mA
•
Input voltage: maximum of low 0.9 V; minimum of high 2.1 V
•
TTL inputs are 5V and 3.3V logic tolerant
Spyder 3 GigE User Manual
F igure 11: TTL Input Schematic. The
2 3 5 H
DALSA
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