
Digital Linescan C amera 
www.perkinelmer.com/opto
Input/Output Signal Specifications
(Continued)
Enable (LEN).
The Camera Clock (CCLK) operates at 
either the MCLK frequency or default 
camera frequency, and is synchronized to 
the analog video. The output of the CCLK 
signal can be used to capture digital video 
data by a frame grabber or digitizer. 
The Line Enable (LEN) signal brackets the 
valid digital video.  The signal becomes 
high one CCLK period before the first valid 
pixel and goes low one CCLK period before 
the last valid pixel.
In all modes of operation on the LVDS 
models, a single line delay is present due 
to the necessity of storing all video data 
into memory before the video is output.
Video Gain
The LD3500-series camera features an 
adjustable video gain.  This allows users 
to amplify the video signals for individual 
application needs.  Photo Response Non-
Uniformity (PRNU) remains linear with 
gain.
CameraLink Models:
Gain levels are set by serial 
communication though the CameraLink 
connector.  Gain can be set from 0 to    
24.5 dB in increments of 3.5 dB.  Gain 
settings are not lost when the camera is 
powered down.   
Parallel LVDS (RS-644) Models:
Gain levels are set by differential RS-644 
gain control inputs on the camera 
connector.  The gain levels can be set at 1, 
2, 4 and 8X full-scale gain, allowing the 
user to easily configure the camera output 
to suit their application needs.  Gain 
settings are not held after power down; 
proper input signals must be given at 
start-up, and held throughout operation 
for gain settings to remain at desired 
levels.
Data and Power Connectors
CameraLink Models:
The communications connector on the 
LD3500-series camera is a 26-pin D-type 
male connector, common to all CameraLink 
applications.  This 26-pin connector 
contains all communications and controls 
needed for camera operation.  Power is 
provided to the LD3500 via a 6 pin, 
Hirose HR10A circular jack.  Refer to Table 
1a for pinout of the communications and 
control connector.  Figure 2 provides pinout 
locations for this connector.
Figure 2.  Connector Diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
3M Connector MDR26 Position Plug
Recommended Cable:   3M14X26S2LB-XXX-OLC
1
19
18
36
Recommended Cable:  3M10136-6000EC series
Parallel LVDS
Connector:  Hirose HR10A
Mating Part:  Hirose HR10A-7P-6S
Figure 3.  Power Connector Diagram
5
4
6
2
3
1
PDP-206.01B - 7/2002W  Page 3
Pin
1
2
3
4
5
6
Signal
12-24VDC
12-24VDC
Do not connect
Do not connect
Ground
Ground
Table 2.  Power Connector Pinout
Note: 
The power connector and pinout are 
common to all CameraLInk and Parallel
LVDS models