Texas Instruments Digital Camera MC 1000WU 20A User Manual

MC-1000WU-20A High-Resolution  
B/W Camera  
User’s Guide  
Literature No. SOCU007  
May 1998  
Printed on Recycled Paper  
 
Preface  
Read This First  
About This Manual  
This User’s Guide provides installation, operation, and maintenance informa-  
tion for the MC-1000WU-20A black and white video camera.  
How to Use This Manual  
This document contains the following chapters:  
Chapter 1 – Introduction  
Chapter 2 – Specifications  
Chapter 3 – Installation  
Chapter 4 – Operation  
Chapter 5 – CCD Circuit Description  
Chapter 6 – Cleaning Instructions  
Appendix A – Functional Block Diagram  
Appendix B – Timing Diagrams  
Refer to the appropriate chapter for more information or for instructions con-  
cerning procedures or practices.  
Information About Cautions and Warnings  
This book may contain cautions and warnings.  
This is an example of a caution statement.  
A caution statement describes a situation that could potentially  
damage your software or equipment.  
iii  
 
About This Manual  
This is an example of a warning statement.  
A warning statement describes a situation that could potentially  
cause harm to you.  
The information in a caution or a warning is provided for your protection.  
Please read each caution and warning carefully.  
Trademarks  
TI is a trademark of Texas Instruments Incorporated.  
iv  
 
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Documentation  
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book.  
Read This First  
v
 
vi  
 
Contents  
1
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1  
1.1  
1.2  
1.3  
1.4  
1.5  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4  
Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5  
Equipment Required But Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6  
2
3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1  
2.1  
2.2  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1  
3.1  
3.2  
Interface Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
3.2.1 Mounting the Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
3.2.2 Connecting an Auto-Iris Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
3.2.3 Connecting a Standard Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
3.2.4 Connecting the AC/DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
3.2.5 Connecting the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
Post-Installation Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5  
3.3  
4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1  
4.1  
General Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.1.1 Turn-On Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.1.2 Turn-Off Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.1.3 Focusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.1.4 Adjusting Image Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
External Operation (See Appendix B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3  
4.2  
5
CCD Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1  
5.1 The CCD Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
6
Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1  
6.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2  
A
B
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1  
A.1 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2  
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1  
B.1 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2  
vii  
 
Figures  
1–1  
2–1  
2–2  
A–1  
B–1  
B–2  
B–3  
B–4  
B–5  
B–6  
B–7  
B–8  
B–9  
MC-1000WU-20A Interface Options and Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
Input Interface Circuit of VD, HD, and MCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Output Interface Circuit of Pixel and Shutter Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2  
TV Internal Mode (see Note) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2  
TV External Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3  
The Relationship of Vertical Sync Out and Mechanical Shutter or Strobe Light . . . . . . . . B-3  
The Relationship of Horizontal Drive Input and Video Output . . . . . . . . . . . . . . . . . . . . . . . . B-4  
Shutter Internal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4  
Shutter External Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5  
The Relationship of VD Input and HD Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5  
HD Input Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6  
The Relationship of VD Input and C-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6  
Tables  
2–1  
3–1  
3–2  
3–3  
3–4  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
Auto Iris Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Power Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
Video Connector (BNC Connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
AUX Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3  
viii  
 
Chapter 1  
General Description  
This User’s Guide describes installation, operation, and maintenance for the  
MC-1000WU-20A video camera.  
Topic  
Page  
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3  
1.3 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4  
1.4 Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5  
1.5 Equipment Required But Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6  
1-1  
 
Features  
1.1 Features  
The Texas Instruments MC-1000WU-20A camera features the Texas  
Instruments TC215 solid-state monochrome charge-coupled-device (CCD)  
image sensor. The camera is for vision system applications requiring high-  
resolution and high-sensitivity operation. The camera features include:  
TV frame rate, 15 Hz  
High sensitivity, 0.35 lux typical  
12 m square pixel  
TI-Virtual Phase CCD technology  
High blue response  
High near-IR response  
Electron-hole recombination antiblooming  
100% optical fill factor  
1-2  
General Description  
 
Introduction  
1.2 Introduction  
The MC-1000WU-20A is one of a series of high-resolution video cameras that  
employs TI’s mega-pixel CCD image sensors. The cameras are intended for  
scientific and industrial imaging applications where image data processing is  
required.  
The MC-1000WU-20A camera employs the TI TC215 full-frame CCD image  
sensor, which features 1,017,000 active photosites, resulting in a very-high-  
resolution image. The TC215 sensor provides high sensitivity and good  
spectral response as a result of the TI patented Virtual Phase technology.  
The TC215 sensor measures 17.2 mm diagonally and features 12- m square  
pixels. The square pixels permit symmetrical image measurement in both the  
X and Y axis. The photosite has a 100% fill factor and is responsive to wave-  
lengths in the ultraviolet through the visible and into the near-infrared spectral  
regions. The camera outputs composite analog video at a 20-mega-pixel per  
second data rate. Two operating options can be selected - a normal operating  
mode and a programmable shutter mode. In addition, the camera provides for  
auto-iris control.  
A
mechanical shutter or strobe light is recommended for most  
MC-1000WU-20Acameraapplications. Theshutteroperationissynchronized  
to the camera by supplying an external shutter command signal. The shutter  
may operate from a minimum integration time of 1/2500 second to 1/125  
second or 10 frames/s maximum. Figure 1–1 shows the camera interface  
options and mode selection.  
Figure 1–1. MC-1000WU-20A Interface Options and Mode Selection  
MCK (20 MHz)  
HD  
VD  
SHT Command  
SHT Monitor  
Video  
Camera Interface Signals  
Internal  
X’TAL  
Digital  
Multiplexer  
80 MHz  
20 MHz  
EXT Pixel  
MCK  
20 MHz  
I/E  
1-3  
General Description  
 
Physical Description  
1.3 Physical Description  
The MC-1000WU-20A camera is housed in an aluminum case 210.6 mm long  
(excluding lens) by 68.0 mm high by 68.0 mm wide. It is self-contained except  
for power supply and monitor. The camera weighs 2.09 pounds.  
The MC-1000WU-20A offers a standard TV C-mount lens attachment with an  
adjustable lens locking ring to allow precise adjustment of the lens back focal  
length. A variety of lenses or mechanical shutters may be used.  
(??Page 3–4 says three ??)Two standard 1/4 20 threaded tripod mounting  
holes on the baseplate allow secure mounting.  
1-4  
General Description  
 
Equipment Supplied  
1.4 Equipment Supplied  
After unpacking the camera and before discarding the packaging materials,  
inventory the shipment for the following items:  
MC-1000WU-20A CCD camera  
Lens (optional) (not supplied)(??If not supplied, it won’t be in the in-  
ventory??)  
MC-1000WU-20A CCD Camera User’s Guide  
Auto iris connector  
Power connector (optional power supply)  
I/O interface connector (not supplied)(??If not supplied, it won’t be in  
the inventory??)  
1-5  
General Description  
 
Equipment Required But Not Supplied  
1.5 Equipment Required But Not Supplied  
The MC-1000WU-20A camera uses the full-frame TC215 CCD image sensor.  
This full-frame format sensor requires a mechanical shutter or an electronic  
light strobe to prevent image smear. The shutter or strobe light allows scene  
information to be captured during either the open time of the shutter or on-time  
of the strobe light. The transfer or read-out of the captured scene information  
is performed during the closed time of the shutter or off-time of the strobe.  
Once the shutter or strobe light is chosen, an appropriate lens may also be  
selected.  
The MC-1000WU-20A camera supplies analog video at either a 15-Hz frame  
rate in the TV mode or a 10-Hz frame rate in the shutter mode and can be  
displayed directly to a video monitor capable of those frame rates. However,  
many applications require the addition of a custom or commercially available  
frame-buffer or other video processing equipment. This hardware will enable  
the user to capture and digitally process the scene information. The  
MC-1000WU-20A is presently supported by several manufacturers of video  
processing hardware and software systems. Most manufacturers have  
application notes available describing the interface required.  
1-6  
General Description  
 
Chapter 2  
Specifications  
This chapter lists specifications for the MC-1000WU-20A camera and  
describes the interface circuit.  
Topic  
Page  
2.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2  
2.2 Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4  
2-1  
 
2.1 Specifications  
Table 2–1 lists the specifications for the MC-1000WU-20A camera.  
Table 2–1.Specifications  
Item  
Specification  
Imager  
Resolution  
Texas Instruments TC215 Full-Frame CCD  
1024(H) 1024(V) (total imager)  
1000(H) 1017(V) (active pixels)  
Pixel size  
12 m 12 m  
Imager size  
H: 12.2 mm  
V: 12.0 mm  
Synchronization  
TV mode  
Internal/external (jumper selectable)  
1050 lines/frame (33 blank lines)  
15 frames/sec  
non-interlace  
Shutter mode  
Sensitivity  
1050 lines/frame (33 blank lines)  
10 frames/sec (max)  
0.29 lux (max)  
0.35 lux (typ)  
0.41 lux (min)  
1/30 integration  
Video output: 100 IRE  
S/N ratio: 48 dB  
Light source: T=2870°K  
S/N ratio  
48 dB  
MTF  
10 MHz chart, 35% (typ), 500 nm  
0.90 ±0.05 V  
White clip  
Setup level  
Output dc level  
Sync level  
Supply voltage  
50 ±10 mV  
0.30 ±0.05 V  
0.30 ±0.015 V  
+5 ±0.15 Vdc  
–12 ±0.4 Vdc  
+12 ±0.4 Vdc  
Power consumption (typical) +5 V at 0.820 A  
+12 V at 0.180 A  
–12 V at 0.150 A  
Non-uniformities  
Total black and white pixel non-uniformities, less than 20. Vertical line non-  
uniformities, less than 5.  
Shading (maximum)  
Horizontal  
10%  
15 mV  
20 mV  
100%  
50 mV  
70 mV  
Vertical  
Vertical frequency  
Horizontal frequency  
Gamma  
15.46 Hz  
16.234 kHz  
1.0  
2-2  
Specifications  
 
Table 2–1.Specifications (Continued)  
Item  
Specification  
Operating temperature  
Storage temperature  
Dimensions  
–10 C to +45 C  
–30 C to +85 C  
68 (W) 68 (H) 210.6 (D) mm  
2.09 lbs  
Weight  
2-3  
Specifications  
 
Interface Circuit  
2.2 Interface Circuit  
The input interface circuit of VD, HD, and MCK shown in Figure 2–1, consists  
of one SN75124 input gate pulled up through a 4.7-k resistor to 5 Vdc and  
pulled down to ground through an optional 100- resistor. The optional pull  
down is selected by jumpers JP1 (MCK), JP2 (HD), and JP3 (VD).  
Figure 2–1. Input Interface Circuit of VD, HD, and MCK  
5 V  
5 V  
5 V  
4.7 k  
4.7 kΩ  
4.7 kΩ  
VD  
HD  
MCK  
75124  
75124  
75124  
JP3  
JP2  
JP1  
100 Ω  
GND  
100 Ω  
GND  
100 Ω  
GND  
Figure 2–2. Output Interface Circuit of Pixel and Shutter Monitor  
(see Note A)  
Pixel Out  
Shutter  
Monitor  
75123  
470 Ω  
470 Ω  
100 Ω  
NOTE A. For pixel clock receiving, pull domain resistor 100 is recommended.  
2-4  
Specifications  
 
Chapter 3  
Installation  
This chapter describes interface assignments and gives instructions for  
installing and testing the camera.  
Topic  
Page  
3.1 Interface Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2  
3.2 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4  
3.3 Post-Installation Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5  
3-1  
 
Interface Assignments  
3.1 Interface Assignments  
Depending upon the application, it may be necessary to build a camera cable  
that contains some combination of the signals listed below:  
Table 3–1.Auto Iris Connector Pin Assignment  
Pin Number  
Signal Name  
Video signal  
GND  
A
B
C
D
E
+12 V  
NC  
NC  
Note: Connectors  
Camera side: PRC05-R5M (Tagimi)  
Cable side: PRC05-P5F (Tagimi)  
Table 3–2.Power Connector Pin Assignment  
Pin Number  
Signal Name  
+12 V  
+12 V  
GND  
A
B
C
D
E
F
+5 V  
+5 V  
GND  
G
H
–12 V  
GND  
Note: Connectors  
Camera side: R03-R8F (Tagimi)  
Cable side: R03-PB8M (Tagimi)  
Table 3–3.Video Connector (BNC Connector)  
Pin  
Signal Name  
Composite video  
Video RTN  
Center pin  
Shell  
3-2  
Installation  
 
Interface Assignments  
Table 3–4.AUX Connector Pin Assignment  
Pin Signal Name  
I/O Trigger  
Interface  
1
MCK RTN  
2
Horizontal Drive RTN  
Vertical Drive RTN  
Pixel Clk Out RTN  
Shutter RTN  
3
4
5
6
Shutter Monitor RTN  
Internal/External RTN  
GND  
7
8
9
MCK IN  
I
SN75124N  
SN75124N  
SN75124N  
SN75123N  
SN74LS14N  
SN75123N  
10  
11  
12  
13  
14  
15  
Horizontal Drive  
Vertical Drive  
I
Negative  
Negative  
I
Pixel Clk Out  
O
I
Shutter CMD  
Shutter Monitor OUT  
Internal/External  
O
I
Negative  
Note: Connector Information  
External mode: short 7 pin––––15 pin  
Internal mode: open 7 pin––––15 pin  
Connectors: Dsub 15 pin female connector, #4-40 (cable side)  
3-3  
Installation  
 
Installation Procedure  
3.2 Installation Procedure  
The following paragraphs describe installation procedures for the  
MC-1000WU-20A camera.  
3.2.1 Mounting the Camera  
The camera can be mounted using any one of (??Two on page 1–4??) three  
1/4 20-thread mounting holes located on the camera base plate.  
3.2.2 Connecting an Auto-Iris Lens  
Most auto-iris lenses can be used with MC-1000 series cameras. Connect the  
auto-iris lens to the MC-1000WU-20A camera per the auto-iris connector pin-  
out table in Section 3.1 and the lens wiring schematic provided by the lens  
manufacturer.  
3.2.3 Connecting a Standard Lens  
A number of standard C-mount or shutter attachments may be used with the  
camera. The camera employs a lens locking ring to fix the minimum distance  
between the rear lens element and the CCD imager.  
3.2.4 Connecting the AC/DC Power Supply  
ThePS-1000powersupplyisrecommendedforusewiththecamera, because  
it already has the proper power connector installed. A bench supply can also  
be used, provided that the bench supply output meets the power requirements  
of the camera listed in Chapter 2.  
3.2.5 Connecting the Monitor  
Video may be viewed directly from the camera by attaching a video cable to  
the video input jack of a TV monitor. The monitor must be capable of 15 Hz  
vertical synchronization. The video may also be the input source to commer-  
cially available frame-buffer or other video processing hardware. The video  
signal should be properly terminated into a 75-ohm load. A mechanical shutter  
or strobe light will be required in most applications.  
3-4  
Installation  
 
Post-Installation Test  
3.3 Post-Installation Test  
When the power and monitor connections have been made, test the camera  
by applying power to the monitor and the external power supply (if used). The  
green power-on LED on the camera rear panel should light and an image  
should appear on the display. It may be necessary to operate the shutter con-  
trol or frame-buffer hardware to obtain an image. In addition, the lens may re-  
quire focus adjustment to obtain a sharp picture.  
3-5  
Installation  
 
3-6  
Installation  
 
Chapter 4  
Operation  
This chapter describes general and external operating procedures for the  
MC-1000WU-20A camera.  
Topic  
Page  
4.1 General Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2  
4.2 External Operation (See Appendix B) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3  
4-1  
 
General Operating Procedures  
4.1 General Operating Procedures  
TheMC-1000WU-20Acamerafeatureshigh-resolution, stable, verysensitive,  
linear images from an array of 1000(H) by 1017(V) picture elements. The cam-  
era operates as one unit of a user-defined imaging system. Other components  
typically consist of a mechanical shutter or strobe light, a TV frame-buffer or  
frame-storage computer or hardware system, an optical system (lens), and a  
power supply. The MC-1000WU-20A camera operates with little or no opera-  
tor adjustment after the initial setup period. The following paragraphs give op-  
erating procedures for the camera.  
4.1.1 Turn-On Procedure  
The camera does not have a power switch; as soon as power is applied by the  
power supply, the camera becomes operable. The green LED on the rear  
panel signals that power is applied to the camera. After connection of the  
power supply, a picture should appear on a monitor screen within a few  
seconds. If additional frame-buffer hardware is used in the application, verify  
that the hardware is working properly.  
4.1.2 Turn-Off Procedure  
Toturnoffthecamera, removethepowerconnectorfromthecamera, orswitch  
off the appropriate system power supply.  
4.1.3 Focusing  
The MC-1000 series cameras use a lens-locking ring to set the minimum dis-  
tance between the rear lens element and the CCD imager. Focus the lens by  
rotating the front lens barrel clockwise or counterclockwise until the image is  
sharp. If a sharp image cannot be obtained, do the following steps:  
1) Check lens surface for smears, smudges, or dust. Clean lens surface per  
lens manufacturer’s instructions.  
2) Check glass cover on CCD imager for smears, smudges, or dust. Clean  
glass cover with alcohol and a cotton swab. See Chapter 6, Maintenance  
Instructions, for details.  
3) Check the distance between the rear lens element and the CCD imager.  
If necessary, adjust the distance by loosening the lens-locking ring.  
Remember to tighten the lens-locking ring after adjusting to fix the new  
distance setting.  
4.1.4 Adjusting Image Brightness  
Image brightness is a function of exposure time (which is fixed in standard TV  
applications) and lens aperture (F number). The sensitivity of the CCD sensor  
and the amount of light reaching the sensor through the optical system is a  
function of scene illumination, optical alignment, and magnification. In most  
cases, the image brightness can be adjusted by varying the lens aperture. If  
an image is too dark, rotate the lens aperture ring to a smaller number. This  
selects a larger lens aperture, allowing more light through the lens.  
4-2  
Operation  
 
General Operating Procedures  
4.2 External Operation (See Appendix B)  
Figure B–1. TV Internal Mode  
Figure B–2. TV External Mode  
Figure B–3. The Relationship of Vertical Sync Out and Mechanical Shutter  
or Strobe Light.  
Figure B–4. The Relationship of Horizontal Drive Input and Video Output  
Figure B–5. Shutter Internal Mode  
Figure B–6. Shutter External Mode  
Figure B–7. The Relationship of VD Input and HD Input  
Figure B–8. HD Input Waveforms  
Figure B–9. The Relationship of VD Input and C-Sync  
4-3  
Operation  
 
4-4  
Operation  
 
Chapter 5  
CCD Circuit Description  
This chapter describes the TC215 CCD image sensor circuit used in the  
camera.  
Topic  
Page  
5.1 The CCD Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2  
5-1  
 
The CCD Array  
5.1 The CCD Array  
The TC215 is a full-frame charge-coupled device (CCD) image sensor that  
provides very-high-resolution image acquisition for image processing  
applications such as robotics vision, medical x-ray analysis, and metrology.  
The image format of the sensor measures 12.0 mm horizontally by 12.2 mm  
vertically; the image area diagonal is 17.2 mm. The image area contains 1017  
active lines with 1000 active pixels per line. Six additional dark reference lines  
give a total of 1024 lines in the image area, and twenty-four additional dark  
reference pixels per line give a total of 1024 pixels per horizontal line. The  
pixels are 12 mm square and form precise rows and columns, horizontally and  
vertically, allowing precise image geometry measurements.  
The CCD is a solid-state device, which requires no external adjustment or  
regular maintenance. Unlike a conventional pickup tube, there are no  
electromagnetic alignment routines to be observed because there is no  
electron beam involved.  
The full-frame image sensor should be used with a shutter or with strobed  
illumination to prevent smearing of the image during readout. After image  
capture (integration time), the readout is accomplished by transferring the  
charge one line at a time into two serial registers, each of which contains 512  
data elements and 12 dummy elements. The typical pixel rate is  
20 mega-pixels per second using both serial registers. Operating the TC215  
at the typical data rate of one field per frame generates video at a continuous  
15 frames per second in the TV mode of operation.  
5-2  
CCD Circuit Description  
 
Chapter 6  
Cleaning Instructions  
This chapter gives instructions for cleaning the camera.  
Topic  
Page  
6.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2  
6-1  
 
Cleaning  
6.1 Cleaning  
The camera body, lens, and the CCD imager optical glass window should be  
kept clean and free of dust and grime. Keeping the lens and the CCD imager  
window clean enhances the picture, ensuring better results in the camera  
application. These surfaces can be cleaned with denatured alcohol and a  
cotton swab. Extreme care should be taken when cleaning the optical glass  
CCD imager window to avoid breaking the glass.  
6-2  
Cleaning Instructions  
 
Appendix A  
Functional Block Diagram  
This appendix contains the functional block diagram for the camera.  
Topic  
Page  
A.1 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2  
A-1  
 
Functional Block Diagram  
A.1 Functional Block Diagram  
Figure A–1.Functional Block Diagram  
3 AM  
Interface Board  
(20M)  
3 AJ  
Logic Board  
3 AN  
Connector  
Board  
3 AK Board  
3 AD  
CCD Board  
3 AR  
Video Process  
Board  
Power In  
Auto IRIS  
3 AH  
Power/Driver  
Board  
A-2  
 
Appendix B  
Timing Diagrams  
This appendix contains timing diagrams for the camera.  
Topic  
Page  
B.1 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2  
B-1  
 
Timing Diagrams  
B.1 Timing Diagrams  
Figure B–1.TV Internal Mode (see Note)  
1050H  
1050H  
Vertical  
SYNC (Internal)  
3H  
Shutter  
Window  
27H  
27H  
Mechanical Shutter  
or Strobe Light  
Composite  
Video (Out)  
Read Out  
1017H  
Read Out  
1017H  
3H  
3H  
30H  
Vertical  
Blank  
30H  
Vertical  
Blank  
No output. This timing indicates CCD state which can be the integration. Shutter or strobe timing have to be synchronized  
with this window period.  
Note: This mode is used for camera operation verification.  
B-2  
 
Timing Diagrams  
Figure B–2.TV External Mode  
1050H  
1050H  
Vertical  
Drive (IN)  
Vertical  
SYNC (Internal)  
3H  
Shutter  
Window  
27H  
27H  
Mechanical Shutter  
or Strobe Light  
Composite  
Video (Out)  
Read Out  
1017H  
Read Out  
1017H  
30H  
Vertical  
Blank  
3H  
3H  
30H  
Vertical  
Blank  
Figure B–3.The Relationship of Vertical Sync Out and Mechanical Shutter or Strobe Light  
Vertical  
Drive (IN)  
3H  
3H  
Mechanical Shutter  
or Strobe Light  
27H  
27H  
Timing Diagrams  
B-3  
 
Timing Diagrams  
Figure B–4.The Relationship of Horizontal Drive Input and Video Output  
HD (Input)  
Active  
Vedio  
Video (Output)  
(See B–1–8)  
Figure B–5.Shutter Internal Mode  
Integrate Frame  
525H  
Read Out Frame  
1050H  
Shutter Command  
(Input)  
Integrate (Flex Timing)  
Shutter Monitor  
(Out)  
3H  
Flush  
AB Capability High  
AB Capability Low  
Vertical SYNC  
(Internal)  
Read Out  
1017H  
30H  
Vertical  
Blank  
3H  
Vertical  
Blank  
Continuous  
AB Clock  
34H  
Shutter Window  
Mechanical Shutter  
or Strobe Light  
Recomended Timing For High Dynamic Range XXXX Source Due to The Capability State.  
Composite  
Video (Out)  
Read Out  
1017H  
Read Out  
1017H  
3H  
3H  
30H  
Vertical  
Blank  
30H  
Vertical  
Blank  
Fall edge shows starting of CCD integration state. Rise edge shows AB capability state change. The integrate time  
does not change, but changes AB capability.  
B-4  
 
Timing Diagrams  
Figure B–6.Shutter External Mode  
Integrate Frame  
Read Out Frame  
1050H  
Shutter Command  
(Input)  
525H  
Vertical Drive  
(IN)  
Shutter Monitor  
(Out)  
Integrate  
Vertical SYNC  
(Internal)  
Read Out  
1017H  
Flush  
34H  
30H  
Vertical  
Blank  
3H  
Vertical  
Blank  
For High Dynamic Range Input.  
Shutter Window  
Mechanical Shutter  
or Strobe Light  
Composite  
Video (Out)  
Read Out  
1017H  
525H  
30H  
Vertical  
Blank  
30H  
Vertical  
Blank  
3H  
3H  
Figure B–7.The Relationship of VD Input and HD Input  
TV External Mode  
VD (Input)  
HD (Input)  
± 50 ns  
Shutter External Mode  
SHUTTER (Input)  
Shutter Pulse Width  
(380 µs to 10 µs)  
5 to 50 ns  
VD (Input)  
± 50 ns  
HD (Input)  
Timing Diagrams  
B-5  
 
Timing Diagrams  
Figure B–8.HD Input Waveform  
1/F (H)  
HD (Input)  
3 to 10 µs  
Figure B–9.The Relationship of VD Input and C-Sync  
TTL Level  
VD (Input)  
1 to 9H  
C–SYNC  
B-6  
 
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pertaining to warranty, patent infringement, and limitation of liability.  
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in  
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TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily  
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Copyright 1998, Texas Instruments Incorporated  
 

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