This paper takes a look at the practical and cost effective design aspects of the 1012. The positioning will allow the implementation of intelligent routing, which help the design engineer to minimize the backplane layer count. The following is a partial list of considerations for facility planning as they impact space requirements, and ultimately cost. This covers design considerations including advice and engineering drawings for users who intend to produce their own backplanes right through to manufacture. Despite their similarities, the differences are significant requiring intricate design considerations and compensation. Plus, backplanes are currently being designed or are in planning today. Signal integrity considerations for 10gbps transmission over. Introduction to design of industrial ventilation systems. Related links relative dielectric constant on page 5 loss tangent on page 5 fiberglass weave composition on page 7 skin effect on page 8 1 pcb stackup design considerations for intel fpgas pcb stackup design considerations for intel fpgas 4. Section 4 backplane design considerationsbackplane designer. An open frame backplane may provide the means to convert the daughter card spacewire signals from the backplane interface to the standard 9pin mdm interface connector shell grounding must be considered with any design 10 high speed backplane connectors with spacewire signaling pwb mounted 9pin mdm for test equipment interface. The sooner one considers the backplane s physical architecture near the beginning of a project, the more successful the project will be.
The single net connection between n cards, in a multipoint backplane, must be replaced with nn1 unidirectional pointtopoint links. In addition, the assumption is made that there are no other components on the ej distribution board with the exception of connectors. Further design considerations such as the influence of surface alignment45, electrode configuration40and silicon backplane 46 the consecutive refractions steer the beam in the desired. Chapter 3 system design considerations electronic components users manual 39 electronic components transducer systems there are three different types of electronics for agilent laser transducer systems. Design considerations of the backplane connector and pin field are discussed to minimize. In a high speed digital system design, the chip level decoupling. Use plug in boards and backplanes to minimize wire harnesses. The reference design platform utilizes a combination of good design practices to make it feasible to use an fr4 backplane with standard components and fabrication processes to realize 3. The backplane cpu communicates with io and sendsreceives data from the backplane. Design considerations for adcbased backplane receivers. These aspects include pcb line structure, vias, device packaging and backplane connectors. Importance of grounding techniques 0 5 10 15 20 25 30 35 40 45 percent used grounding 42% case shield 22% cable shielding 18%. Guidelines that enable the design engineer to successfully design a highperformance backplane with gtlp or other singleended opendrain devices, such as btl, are provided.
We are confident that you will find the lvds owners manual a useful reference guide and an introduction to the many application support tools that we offer. To attain these oftenconflicting goals, it is necessary to maximize the performance of every aspect of the design, including the backplane configuration. This paper describes the engineering considerations and design techniques used to develop a small form factor rugged recorder that can handle the extremely high data rates associated with very wide. Signal integrity and simulation considerations in backplane. For more information on facility planning, refer to the air force planners handbook. It offers design tips, answers many backplane questions, and updates recent developments. Section 3 backplane architecture backplane designers guide the primary criteria for backplane design are low cost, high speed, and high reliability. We use advanced design software and equipment to perfect your design.
Once design is locked they are unable to be changed for the lifetime of platform. An enclosure that is selected to meet a specific rating and standard may not meet all requirements of your application and. The channel ber is derived from the calculated pdf, because the ber requirement can be directly. High layer count pcbs often suffer from lamination and. This can leave designers unsure of how to implement the protocol to achieve desired performance as well as meet adequate design margins. Backplane architecture and design bert simonovichs design. Paul guyer is a registered civil engineer, mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and.
These benefits are highlighted by the bustronic elma trenew dual star advancedtca backplane figure 2 where the hub slots are placed in the middle of the backplane. A brief description of critical component selection is followed by a discussion of design considerations. Softlogix system user manual, 1789um002 softlogix controllers. Simplify the design and reduce the number of parts because for each part. Keysight technologies designing scalable 10g backplane.
Design considerations abstract for details on the backplane designers guide. While several cable based design considerations still apply, there are other design considerations that are unique to this application but not addressed in the spacewire standard. The first paper introduced the subject and looked at invisibility technology. Aug 21, 2018 electrical interfaces and connectors today face signal integrity challenges which werent a real concern 10 to 15 years ago. Therefore, you should consider them as critical parameters during the stackup design. Tms, tdi, tdo and trst are connected in parallel to all backplane slots within the. I have been doing highspeedboard designs for several years and now am working on a backplane design for the telecomm business. It elaborates what for many days has not been explained.
Highspeed pcb design considerations lattice semiconductor. Elma has been a leader in design innovation for over 50 years. Signal integrity and simulation considerations in backplane designs for military systems. These electronics use different backplanes and have different performance and outputs. There is a general consensus that 10 gbps copper backplane serial links will be deployed in the near future. The following illustrations show a comparison of conventional design versus a design that incorporates planning principles and.
The design guide is built on, and adds to, design guidelines from the cisco ethernettothefactory ettf solution and the rockwell automation integrated architecture. Signal integrity considerations for 10gbps transmission. The document r1 gives information about the general design of an ej distribution board for standard ej components. Lattice semiconductor highspeed pcb design considerations. As bit rates have risen over time, the deleterious effects of the aforementioned elements on the signal quality have increased significantly and so also has io circuit design complexity. Multilayer routing is required in most high speed backplane designs and with tight footprint densities the only viable options are edge coupled. The elements considered in this study include trace topology, laminate material, high speed backplane connectors, and the launch effects due to the plated through via. Backplane architecture highlevel design white paperissue 1. Some of the targeted interface environments include computer servers, mainframes and central. Designing a highperformance backplane is extremely complex, because issues such as distributed capacitance, stub lengths, noise margin, rise time slew rate.
Pdf designcon 2006 practical design considerations for. The air force is committed to excellence in the design and. Signal integrity and routing considerations for high speed systems. Techonline is a leading source for reliable tech papers. Mtl provides a complete design andor manufacturing service for system integration. Design considerations for gigabit backplane systems definition engineers continually access new technologies when making architectural decisions for their new products. A total of 63 point io modules can be assembled on a single controlnet node. An9 pcb design considerations for ksz884142 family of ethernet controllers micrel inc. The silicon backplane design for an lcos polarization. Pdf designcon 2006 practical design considerations for 10.
Section 4 backplane design considerations backplane designers guide section 4 backplane design considerations backplane designers guide this section focuses on designing highperformance parallel backplanes, a task that can be extremely complex. A pcb design checklist is provided to aid the designer. With appropriate design serdes interlane transmit skew can be limited to analog skews. His duties include design and development of packages, line cards and backplanes, and modeling of backplane channel components.
It helps you capture your thoughts in an organized manner. Silicon backplane design for oledonsilicon microdisplay. The result is a superb design solution, completed to your specifications in a timely and costefficient. This article discusses the design of a 14slot dual star advanced tca backplane. Deploying device level ring within a converged plantwide ethernet architecture, publication enettd015. This service give vendors and users of process control and safety systems the. Abt design considerations for fault tolerant backplanes introduction national semiconductors high speed advanced bicmos technology, abt is a 1. Highspeed adcbased backplane receivers often suffer from high power consumption and complexity and require careful designs. Ground design objectives for emc minimize cross talk. Design considerations for a cost optimized 28g nrz. Section 4 backplane design considerations backplane designers guide this section focuses on designing highperformance parallel backplanes, a task that can be extremely complex.
Backplane skew backplane skew is caused by differences in channel length between the channels on the line card the connectors the backplane total backplane channel length is. Design con 2000 when a pad is added to this hole, even a very small pad, the added surface capacitance can make. Design considerations for a cost optimized 28g nrz 56g pam4 backplane rula bakleh, teraspeed consulting a division of samtec scott mcmorrow, teraspeed consulting a division of samtec ed sayre, teraspeed consulting a division of samtec. To assure high performance and good signal integrity, many issues must be considered during the design process. Basic design considerations for backplanes texas instruments. Bob alvis prepared by sandia national laboratories albuquerque, new mexico 87185 and livermore, california 94550 sandia is a multiprogram laboratory operated by sandia corporation, a lockheed martin company, for the united states department of energys. The consumer demand for more system bandwidth is common, as is. Logix5000 controllers design considerations 1756lx, 1769lx, 17 89lx, 1794lx, powerflex 700s. Backplane considerations for an rgb 3d display device.
Security design guide reference manual, publication securerm001 provides guidance on how to conduct vulnerability assessments, implement rockwell automation products in a secure system, harden the control system, manage user access, and dispose of equipment. The design of the silicon backplane must fulfill the characteristics of the display technology. The research work is to exploit and develop efficient circuit architecture of the silicon backplane for oledonsilicon microdisplay. For many backplane generations, the issues of impedance, loss, signal stubs, lumped parasitics and cost have been in the forefront of design considerations. Facility planning considerations whole building design guide.
Mechanical considerations and design skills robert l. Modeling and design considerations for 10 gbps connectors. Design conside rations abstract for details on the backplane desi gners guide. Design guidelines for compactpci hot swap control applications. The two major backplane technologies for amoled displays are ltps and oxides. Design considerations for gigabit backplane systems. We can utilize our vast resource of experienced designers and engineers from facilities all over the world. Designcon 2006 practical design considerations for 10 to 25 gbps.
Ti assumes no liability for applications assistance or customer product design. Considerations point io features are impacted by your network choice. While vpx brings unprecedented levels of performance to embedded systems, it also presents entirely new design considerations and tradeoffs not found in previous architectures. Jan 14, 2011 the information about backplane architecture is something to smile about. Section 4 backplane design considerationsbackplane.
Practical design considerations for 10 to 25 gbps copper. Maximum backplane thickness based on chassis and system requirements. Standard lownoise industrial and milgrade backplanes are used. This is especially true for military systems such as radar, electronic warfare, and signals intelligence sigint that continue to grow in complexity. Only the backplane and power delivery system have this level of criticality. Section 3 backplane architecturebackplane designers guide. This application report is a revision of the original basic design considerations for backplanes, literature number szza016, published june 1999.
Backplane considerations for an rgb 3d display device by daniel browning, 7. This paper discusses circuit and systemlevel design considerations. Design considerations of the backplane connector and pin field are discussed. The consumer demand for more system bandwidth is common, as is the need to balance high system speed with the. The design guide focuses on the manufacturing industry.
One must consider signal characteristics as well as allowable noise levels when designing a grounding scheme. I agree that the backplane is the key component in any system architecture and the sooner you consider the backplanes physical architecture near the beginning of a project, the more successful the project will be. Introduction this is the third paper in a series that describes a futuristic design for a 3d display device. This document is meant for developers who would like to create a backplane or an ej distribution board upon which secure ej modules should be used along with standard ej modules.
Application note 881 abt design considerations for fault. The sooner one considers the backplanes physical architecture near the beginning of a project, the more successful the project will be. Backplane is unique once a platform ships, backplane performance is key factor in eol decision. Suppress power supply backplane ringing, resulting from inductance of the power supply and backplane.
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