6
CAMELIACOL 4M Color Digital Camera
5302C–IMAGE–03/04
Electrical Interfaces
Power Supply
Digital I/O
Note:
1. LVDS (Low Voltage Differential Signal) is an EIA-644 standard.
LVDS Drivers/Receivers:
•
LVDS: all digital I/Os are differential: (, signal-). Specifications are given for
.
•
Manufacturer: National Semiconductor
®
.
•
Driver: DS90C031TM (SO16 package)
•
Receiver: DS90C032TM (SO16 package).
Table 2. Power Supply Specifications
Parameter
Nominal Value
Min Value
Max Value
Voltage
24V
20V
28V
Current
0.60A
N/A
N/A
Table 3. Digital I/O Specifications
Symbol
I/O
Definition
Level
TRIG_ITC
I
Timing control:
- TRIG_ITC is either an external trigger or ITC
(integration time control) depending on the timing mode
configured via RS-232.
Operation with external trigger:
- TRIG_ITC = TRIG
Operation with ITC:
- TRIG_ITC = ITC
- TRIG_ITC is synchronized by the camera line clock
(jitter: 112 µs)
LVDS
(1)
S(11..0)
O
Digital video output: 12 bits
LVDS
FEN
O
Frame enable:
- FEN = 0: frame data valid: active lines
- FEN = 1: frame data not valid
LVDS
LEN
O
Line enable:
- LEN = 0: line data valid: active pixels
- LEN = 1: line data not valid
LVDS
PCK
O
Pixel clock
LVDS
SHUTTER
O
Shutter open/close:
- during integration: SHUTTER = 1
- during readout: SHUTTER = 0
Delay between the falling edge of SHUTTER and the start
of readout:
- 4 positions: 1, 5, 10 or 20 ms (set via RS-232).
LVDS
