Imperx CHEETAH C4080M Instructions for use

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
CHEETAH Hardware User’s Manual
HIGH-SPEED, HIGH-RESOLUTION, AND VERSATILE CMOS DIGITAL
CAMERAS
CONFIDENTIAL NOTICE:
These products are not intended for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Imperx customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Imperx for any damages resulting from
such improper use or sale.
Copyright © 2011, Imperx Inc. All rights reserved. All information provided in this manual is believed to be accurate
and reliable. Imperx assumes no responsibility for its use. Imperx reserves the right to make changes to this information
without notice. Redistribution of this manual in whole or in part, by any means, is prohibited without obtaining prior
permission from Imperx.

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
Revision History
Rev 0.1
9/01/14
N.Cohen
Initial Pre-Release l
Rev 0.2
10/28/14
K. Wetzel
Updated Pre-Release 1
Rev 0.3
12/15/14
K. Wetzel
Updated Pre-Release 2
Rev 1.0
02/04/15
K. Wetzel
Production Release
Rev 2.0
02/20/15
K. Wetzel
Updated power and current input values, temp range,
terminology in Section 5.2, 5.4, 5.6 and 5.7.
Rev 3.0
3/4/15
K. Wetzel
update Table 2.1 & Table 2.2 & Table 2.3
Rev 4.0
6/3/15
K. Wetzel
Trigger exposure in rolling shutter mode p 47, potential
image artifacts in WDR p60.
Rev 5.0
6/18/15
K. Wetzel
Update Chapter 4 register locations / functions and Chapter
6: Cheetah Configurator Strobe menu
Rev 6.0 -
6.2
7/7/15
K. Wetzel
Update GUI Screen Shots

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
TABLE OF CONTENTS
Contents
CHAPTER 1 –INTRODUCTION 8
1.0 CHEETAH FAMILY 9
1.1 GENERAL DESCRIPTION 9
1.2 MAIN CHEETAH FEATURES 11
1.3 CHEETAH SPECIFICATIONS 12
1.3.1 General Information 12
1.3.2 Spectral Sensitivity Curves 15
1.3.3 Bayer Pattern Information 16
1.4 TECHNICAL SPECIFICATIONS 16
1.5 CAMERA CONNECTIVITY 18
1.5.1 CLF (Full) - Camera Link (CL) Output 18
1.5.2 Camera Link Full Signal Mapping 19
1.5.3 Camera Link Physical Layer to Camera Link Receiver Bits 21
1.5.4 Camera Link Bit to Port Bit assignments 22
1.5.4 Camera Link Port assignments based on selected output configuration 25
1.5.4 Camera Power Connector 27
1.6 MECHANICAL, OPTICAL, and ENVIRONMENTAL 28
1.6.1 Mechanical 28
1.6.2 Optical 28
1.6.3 Environmental 28
1.6.4 Mechanical Drawings 30
CHAPTER 2 –CAMERA FEATURES 32
2.1 DUAL VIDEO (FRAME A / FRAME B) 33
2.1.1 Frame A / Frame B Description 33
2.1.2 Dual Video: Frame A / Frame B Switching Options 34
2.2 GLOBAL VS ROLLING SHUTTER 34
2.3 A/D DIGITIZATION 35

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
2.4 FRAME TIME CONTROL 35
2.4.1 Internal Line and Frame Time Control 35
2.4.2 Camera Output Control 36
2.5 AREA OF INTEREST 37
2.5.1 Overview 37
2.5.2 Horizontal and Vertical Window 37
2.5.3 Factors Impacting Frame Rate 38
2.6 SUBSAMPLING 40
2.6.1 Pixel Averaging 40
2.6.2 Sub-sampling Decimation 41
2.7 EXPOSURE CONTROL 43
2.7.1 Internal Exposure Control - Electronic Shutter 43
2.7.3 External exposure control 45
2.7.4 Variable Frame Time –Programmable Line and Frame Time 45
2.8 CAMERA TRIGGERING 46
2.8.1 Triggering Inputs 46
2.8.2 Acquisition and Exposure Control 46
2.8.3 Triggering modes 47
2.9 STROBES 49
2.10 VIDEO AMPLIFIER GAIN AND OFFSET 50
2.10.1 Analog Domain –manual control 50
2.10.2 Digital Domain –manual control 51
2.11 WIDE DYNAMIC RANGE (WDR) 51
2.11.1 Overview 51
2.11.2 Wide Dynamic Range Controls 57
2.11.3 Initial WDR Setup Recommendations 59
2.11.4 WDR at maximum frame rates (image artifact prevention) 60
2.12 DATA OUTPUT FORMAT 61
2.12.1 Bit Depth 61
2.12.2 Output Taps 63
2.13 PULSE GENERATOR 64
2.14 I/O CONTROL 64
2.14.1 Input / Output Mapping 64
2.14.2 Electrical Connectivity 65
2.15 TEST IMAGE PATTERNS 67

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
2.15.1Test Image patterns 67
2.16 WHITE BALANCE AND COLOR CONVERSION 68
2.16.1 White Balance Correction 68
2.17 TRANSFER FUNCTION CORRECTION –USER LUT 68
2.17.1 Standard Gamma Correction 69
2.17.2 User Defined LUT 70
2.18 DEFECTIVE PIXEL CORRECTION 70
2.18.1 Static Pixel Correction 71
2.18.2 Dynamic Pixel Correction 71
2.19 CAMERA INTERFACE 72
2.19.1 Status LED 72
2.19.2 Temperature Monitor 72
2.19.3 Exposure Time Monitor 72
2.19.4 Frame Time Monitor 72
2.19.5 Current image size 73
CHAPTER 3 –DIGITAL IMAGE PROCESSING 74
CHAPTER 4 –CAMERA CONFIGURATION 75
4.1 OVERVIEW 76
4.2 CAMERA CONFIGURATION 76
4.2.1 Configuration Memory –parameter FLASH 76
4.2.2 Camera Serial Protocol 77
4.3 CAMERA CONFIGURATION REGISTER DESCRIPTION 80
4.3.1 Startup Procedure 80
4.3.2 Saving and Restoring Settings 80
4.3.3 Retrieving Manufacturing Data 82
4.3.4 Camera Information Registers 84
4.3.5 Frame “A” Workspace Registers 86
4.3.6 Frame “B” Workspace Registers 91
4.3.7 Acquisition Control Registers 96
4.3.8 Triggering Workspace Registers 97
4.3.9 Strobe Control Registers 99
4.3.10 Pulse Generator Workspace Registers 100
4.3.11 Test Pattern Workspace Registers 101
4.3.12 Input/output Workspace Registers 102
4.3.13 Data Output Bit Depth/Format Selector 103
4.3.14 White Balance (WB) Workspace Registers 103

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
4.3.15 Data Correction Workspace Registers 105
CHAPTER 5 - CONFIGURATOR FOR CAMERALINK 107
5.1 OVERVIEW 108
5.2 DISCOVERY PROCEDURE 108
5.3 GRAPHICAL USER INTERFACE 109
5.4 MAIN GUI MENU 110
5.5 VIEW GUI WINDOWS 113
5.6 MENU HELP 114
5.7 PARAMETER WINDOWS 115
5.7.1 Dual Video (Frame A / Frame B) Window 115
5.7.2 Trigger Inputs 121
5.7.3 Pulse Generator 123
5.7.4 Strobe Control And Output Mapping 124
5.7.4 Data Output 125
5.7.5 Color 127
CHAPTER 6 CHEETAH WARRANTY AND SUPPORT 129
ORDERING INFORMATION 130
7.2 TECHNICAL SUPPORT 130
7.3 WARRANTY 131
APPENDIX A –CAMERA CONFIGURATION REFERENCE 132
A.0 ABBREVIATIONS 133
A.1 SAVING AND RESTORING REGISTERS 133
A.2 CAMERA INFORMATION REGISTERS 133
A.3 FRAME A REGISTERS (Stored in FLASH) 134
A.4 FRAME A WDR REGISTERS 135
A.5 FRAME B REGISTERS (Stored in FLASH) 136

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
A.6 FRAME B WDR REGISTERS 137
A.7 DUAL VIDEO REGISTERS AND FRAME A/B COMMON REGISTERS 138
A.8 TRIGGER REGISTERS 138
A.9 PULSE GENERATOR REGISTERS 138
A.10 TEST PATTERN REGISTERS 139
A.11 STROBE REGISTERS 139
A.12 INPUT AND OUTPUT REGISTERS 140
A.13 OUTPUT DATA FORMAT REGISTERS 140
A.14 WB AND COLOR CORRECTION REGISTERS 140
A.15 DATA CORRECTION REGISTERS 140
A.16 MANUFACTURING DATA REGISTERS 141
APPENDIX B –CREATING LOOK UP TABLES 142
B.1 OVERVIEW 143
B.2 USING AN ASCII TEXT EDITOR 143
B.3 USING MICROSOFT EXCEL 144
APPENDIX C –CREATING DPC AND HPC TABLES 145
C.1 OVERVIEW 146
C.2 USING AN ASCII TEXT EDITOR 146
APPENDIX D –SOFTWARE INSTALLATION - CL 147
APPENDIX G –POWER SUPPLIES 149

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
Chapter 1 –Introduction
Introduction
This chapter outlines the key features of the CHEETAH camera.

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
1.0 CHEETAH FAMILY
The CHEETAH series of cameras are built around a robust imaging platform utilizing the latest
digital technology and components. The CHEETAH camera series is designed around 2 different
CMOS imaging sensors, featuring different resolutions and frame rates and are available in
monochrome and color. The Cheetah family currently supports Camera Link Full output and will
support CoaXPress output in the future. The CHEETAH series is programmable to support Camera
Link Deca, Full, Camera Link Medium and Camera Link Base depending upon the user’s needs.
The CHEETAH family list is shown below:
Model
Resolution (H x V)
Speed
Type
Optics
CMOS
Sensor
Supported
Outputs
C4080M
4000x3000
67 fps
Mono
4/3”
ONSEMI
KAC-12040
CLF/CXP*
C4080C
4000x3000
67fps
Color
4/3”
ONSEMI
KAC-12040
CLF/CXP*
C2880M
2832 x 2128
129 fps
Mono
1”
ONSEMI
KAC-6040
CLF/CXP*
C2880M
2832 x 2128
129 fps
Color
1”
ONSEMI
KAC-6040
CLF/CXP*
Table 1.0 Cheetah Family Overview
1.1 GENERAL DESCRIPTION
The CHEETAH cameras are advanced, intelligent, high-resolution, progressive scan, fully
programmable and field upgradeable CMOS cameras. They are built around On
Semiconductors area scan CMOS imagers and are feature rich with a built-in image
processing engine, low noise, and efficient and optimized internal thermal distribution. The
CHEETAH cameras feature a wide range of programmable functions; including, dual video
options, extended dynamic range, exposure control, frame rate control, area of interest,
subsampling, pixel averaging, gain, offset, several triggering options, strobe output control,
transfer function correction, temperature monitoring and user programmable and up-
loadable LUT.
The user can program either a rolling shutter for the widest dynamic range or global shutter
for superior motion capture. The dual video mode allows two independent acquisition
frames (Frame A and Frame B) to be programmed with independent control of exposure
time, area of interest (AOI), subsampling, gain, offset and wide dynamic range parameters.
Additional controls support a variety of ways to seamless switch between frames.
Exposure time for each frame can be controlled using an internal control or controlled by an
external pulse width. Exposure times up to 1 second with 1µs increments in rolling shutter
mode and 5µs increments in global shutter mode are supported. A custom AOI can be
programmed for each acquisition frame and subsampling or pixel averaging capabilities are

CHEETAH Hardware User’s Manual
Imperx, Inc. Rev. 6.2
6421 Congress Ave. 7/7/2015
Boca Raton, FL 33487
[phone] of 152
also available. Pixel averaging is a unique feature providing reduced noise and improved
signal to noise ratio by blending adjacent pixel information together. Analog gains up to 12
dB (4x) in 12-bit digitization mode and 18 dB (8x) in 10-bit mode are available. Digital gain
controls allow further expansion of the low-end signal with 24dB (15.9x) of additional gain
available. The wide dynamic range capability features multi-integration times within one
frame period compressing bright areas into the available output range and extending the
visible dynamic range up to 100db (global shutter mode only) with up to 3 knee points.
A built-in Gamma correction and user-defined LUT capability optimizes the camera’s
dynamic range even further. Defective and hot pixel corrections can also be applied to
correct for pixels that are over-responding or under-responding. Auto-White Balance
(AWB) is available in color cameras to correct for color temperature. The cameras have a
Camera Link™ interface that includes 8/10/12 bits data transmission with two, four, eight or
ten output taps as well as camera control all on one or two cables. The cameras are fully
programmable via the Camera Link interface. The adaptability and flexibility of the camera
allow it to be used in a wide and diverse range of applications including machine vision,
metrology high-definition imaging and surveillance, medical and scientific imaging,
intelligent transportation systems, aerial imaging, character recognition, document
processing and many more.