PCB Constraint Management

CADSTAR Constraint Browser

As design constraints increase in complexity, CADSTAR Constraint Browser simplifies constraint management by providing a fast and effective method to enter the most complex of rules.

The Constraint Browser guides engineers through a fully integrated, constraints-driven design methodology to meet high-speed performance requirements, reducing design costs and time-to-market by eliminating unnecessary prototypes and re-engineering cycles.

The Constraint Browser provides an easy-to-use spreadsheet interface with constraint wizards to setup rules for applications, such as DDR2/DDR3/DDR4 memory interfaces. The Constraint Browser works with CADSTAR Schematic to help you reduce your design cycle time and ensure that your designs are completed to the correct specifications.

Features and Benefits
Common constraint entry system for circuit design, layout, and analysis
Assign standard or user defined topologies, such as H-Tree, Daisy Chain, or Star to control route order and timing for high-speed signals
Automatic generation of extended nets, busses, and differential pairs
Reduce constraint entry time with setup wizards for high-speed interfaces such as DDR2/DDR3/DDR4 applications
Spreadsheet interface to shorten learning curve and allow users to enter and confirm constraints in one view
Export CSV and colored HTML reports to improve communication between design teams and to reduce effort in creation of documentation for validation
Reuse constraints with CSV import to save time in constraint entry
Support for hierarchical constraints to simply assignment of complex requirements between net classes.
Applying Length Constraints

The process for constraining Enets for Minimum/ Maximum, Length/delay values and describing how Enets are to be lengthened using dynamic patterns.

Applying Topologies

The process for constraining Enets for pin order and pin branching using virtual branch points. The CADSTAR Schematic Constraint Browser offers graphical topology editing with several templates and the ability to create User defined topologies.

Resources
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Datasheet: CADSTAR Constraint Browser

As design constraints increase in complexity, CADSTAR Constraint Browser simplifies constraint management by providing a fast and effective method to enter the most complex of rules.

Download

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    It’s no secret that placing passive devices in the proper location, whether it is nearer to the source/driver or the receiver/load pins, makes the difference between poor signal integrity and optimal signal integrity. Often this can be impacted by a breakdown in communications between circuit designers and PCB designers.

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    How to Implement Constraint Management for PCB Designers

    So you’re facing shorter design cycle times due to rapidly emerging global competition and the pressure to meet quality control standards, among many other things like drastically changing technologies that deal with faster speeds and sophisticated IC packages; introducing complexity to the simplest of design flows.

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      PCB Design Constraint Management
      BAE Systems logo

      BAE Systems Uses CADSTAR to Help Reduce Turret Control Computer Wiring by 98%

      Icon

      Datasheet: CADSTAR Constraint Browser

      As design constraints increase in complexity, CADSTAR Constraint Browser simplifies constraint management by providing a fast and effective method to enter the most complex of rules.

      Download