camera link spec.pdf-资料库

wsx12345678-1501947-CameraLinkSPEC.pdf-第1页.png

第1页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第2页.png

第2页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第3页.png

第3页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第4页.png

第4页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第5页.png

第5页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第6页.png

第6页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第7页.png

第7页 / 共34页

wsx12345678-1501947-CameraLinkSPEC.pdf-第8页.png

第8页 / 共34页

Camera Link Specifications of the Camera Link Interface Standard for Digital Cameras and Frame Grabbers Camera Link Specifications October 2000

Acknowledgements Participating Companies The following companies contributed to the development and definition of the Camera Link standard. • Basler Cognex Coreco DALSA Data Translation Datacube EPIX Euresys Foresight Imaging Integral Technologies Matrox National Instruments PULNiX America Rights and Trademarks PULNiX America, Inc., as chair of this ad hoc Camera Link committee, has applied for U.S. trademark protection for the term "Camera Link" to secure it for the mutual benefit of industry members. PULNiX will issue a perpetual royalty-free license to any industry member (including competitors) for the use of the "Camera Link" trademark on the condition that it is used only in conjunction with products that are fully compliant to this standard. PULNiX will not require licensed users of the trademark to credit PULNiX with ownership. 3M™ is a trademark of the 3M Company. Channel Link™ is a trademark of National Semiconductor. Flatlink™ is a trademark of Texas Instruments. Panel Link™ is a trademark of Silicon Image. ii Camera Link Specifications

About this Document The following specifications provide a framework for Camera Link communication. The specifications are deliberately defined to be open, allowing camera and frame grabber manufacturers to differentiate their products. Additional recommendations may be added at a later date, which will not affect the accuracy of the information in this document. iii Camera Link Specifications

Contents Acknowledgements Participating Companies ................................................................................................ii Rights and Trademarks ..................................................................................................ii About this Document Chapter 1 Camera Link Introduction....................................................................................................................1-1 LVDS Technical Description.........................................................................................1-1 Channel Link..................................................................................................................1-2 Technology Benefits ......................................................................................................1-3 Smaller Connectors and Cables.......................................................................1-3 High Data Transmission Rates ........................................................................1-3 Chapter 2 Camera Signal Requirements Video Data.......................................................................................................2-1 Camera Control Signals...................................................................................2-1 Communication ...............................................................................................2-2 Power...............................................................................................................2-2 Chapter 3 Port Assignments Port Definition .................................................................................................3-1 Chapter 4 Bit Assignments Chapter 5 Camera Link Connections MDR 26-pin Connector...................................................................................5-1 Camera Link Cable Pinout ..............................................................................5-2 Shielding Recommendations ...........................................................................5-3 iv Camera Link Specifications

Contents Appendix A Chipset Criteria Appendix B API Functions Appendix C Bit Assignments According to Configuration Appendix D Camera Link Cabling Information Figures Figure 1-1. Channel Link Operation........................................................................ 1-2 Figure 3-1. Figure 3-2. Data Routing for Base, Medium, and Full Configurations................... 3-2 Block Diagram of Base, Medium, and Full Configuration .................. 3-3 Figure 5-1. Camera Link Cable ............................................................................... 5-1 Figure D-1. Figure D-2. Dimensions of 3M Connector ............................................................... D-1 3M Part Number Ordering Information................................................ D-3 Tables Table 3-1. Port Assignments According to Configuration..................................... 3-1 Table 4-1. Camera Link Bit Assignment................................................................ 4-1 Table A-1. Compatible National Semiconductor Parts........................................... A-1 Table C-1. Table C-2. Table C-3. Bit Assignments for Base Configuration .............................................. C-1 Bit Assignment for Medium Configuration.......................................... C-2 Bit Assignment for Full Configuration ................................................. C-4 Table D-1. Table D-2. Shell Options......................................................................................... D-3 3M Boardmount Receptacle Part Numbers .......................................... D-4 Camera Link Specifications v

1 Camera Link Introduction Camera Link is a communication interface for vision applications. The interface extends the base technology of Channel Link to provide a specification more useful for vision applications. For years, the scientific and industrial digital video market has lacked a standard method of communication. Both frame grabbers and camera manufacturers developed products with different connectors, making cable production difficult for manufacturers and very confusing for consumers. A connectivity standard between digital cameras and frame grabbers is long overdue and will become even more necessary as data rates continue to increase. Increasingly diverse cameras and advanced signal and data transmissions have made a connectivity standard like Camera Link a necessity. The Camera Link interface will reduce support time, as well as the cost of that support. The standard cable will be able to handle the increased signal speeds, and the cable assembly will allow customers to reduce their costs through volume pricing. LVDS Technical Description Low Voltage Differential Signaling (LVDS) is a high-speed, low-power general purpose interface standard. The standard, known as ANSI/TIA/EIA-644, was approved in March 1996. LVDS uses differential signaling, with a nominal signal swing of 350 mV differential. The low signal swing decreases rise and fall times to achieve a theoretical maximum transmission rate of 1.923 Gbps into a loss-less medium. The low signal swing also means that the standard is not dependent on a particular supply voltage. LVDS uses current-mode drivers, which limit power consumption. The differential signals are immune to ±1 V common volt noise. 1-1 Camera Link Specifications

Channel Link National Semiconductor developed the Channel Link technology as a solution for flat panel displays, based on LVDS for the physical layer. The technology was then extended into a method for general purpose data transmission. Channel Link consists of a driver and receiver pair. The driver accepts 28 single-ended data signals and a single-ended clock. The data is serialized 7:1, and the four data streams and a dedicated clock are driven over five LVDS pairs. The receiver accepts the four LVDS data streams and LVDS clock, and then drives the 28 bits and a clock to the board. Figure 1-1 illustrates Channel Link operation. Driver Ω 0 0 1 Receiver S O M C L T T / t i b - 8 2 a t a D Driver Driver Driver Driver Driver >1.6 Gbps Data (LDVS) Ω 0 0 1 Data (LDVS) Data (LDVS) Data (LDVS) Receiver Receiver Receiver Receiver D a t a 2 8 - b i t / T T L C M O S Clock (LDVS) Receiver Clock Figure 1-1. Channel Link Operation Camera Link Specifications 1-2

Technology Benefits Smaller Connectors and Cables Channel Link’s transmission method requires fewer conductors to transfer data. Five pairs of wires can transmit up to 28 bits of data. These wires reduce the size of the connector, allowing smaller cameras to be manufactured. High Data Transmission Rates The data transmission rates of the Channel Link chipset (up to 2.38 Gbits/s) support the current trend of increasing transfer speeds. 1-3 Camera Link Specifications

资料库

camera link spec.pdf

相关推荐

开发技术

热门标签

最新资料