As PCB interconnect speeds increase and design margins shrink the need for an accurate and early analysis of interface performance is becoming mandatory to achieve design closure while still meeting tight project schedules. OrCAD® PCB SI provides a fully integrated signal analysis environment that streamlines the creation of quality high-speed interconnect on digital PCBs.
Using OrCAD PCB SI, design teams are able to perform quick and accurate analysis of critical interfaces early in the design cycle where the cost of change is lowest. Early solution space analysis allows the designer to determine optimal placement and routing strategies upfront and then convert this information into PCB implementation constraints driving a correct by construction process. With its full range of capabilities, OrCAD PCB SI enables early identification and resolution of electrical performance issues.
- Enables pre- and post-route SI analysis at any stage of the design cycle
- Powerful simulation technology ensures quick and accurate analysis of interconnect affects
- Explore, analyze, and design interconnect topologies to increase circuit reliability, improve performance, and reduce re-spins
- Drive correct PCB implementation by converting analysis results into design constraints embedded directly within the PCB Editor database
- Eliminate translation errors through direct integration with PCB Editor database
- Easily validate simulation models to ensure correct simulation results
SigXplorer - Graphical Topology Exploration
- Pre and post-route design functionality
- View, simulate, and edit topologies
- Sweep topology parameters to identify solution space
- Solution space becomes constraints that guide PCB designers to first-pass electrical compliance
PCB & SI Integration
- Eliminate design translation issues, with no risk of lost data objects
- Test changes at any time
- Generate design constraints from simulation results to drive board implementation
- Constraints and models are embedded directly in the board design file
Model Editor
- Centralized model editing GUI
- Model validation, including curve fitting/editing and composite curves
SI Application Mode
- Provides quick and easy access to frequently used SI commands
- Objects become highlighted when the mouse hovers over elements
- Auto-execution of default commands
- Super filter enables you to limit the find criteria to a single object type
SI Audit and Design Setup Commands
- These two commands call upon wizards to walk you through the steps required to set up the tool
- Wizards also perform audits on the designs
Signal Quality Checks
Perform signal quality checks with these signal analysis types:
- Reflection – typical time based analysis of a single net to analyze termination schemes and signal delay times
- Crosstalk – amount of voltage induced on nearby victim nets
- EMI – amount of energy that a trace radiates
Simulation Engines
- TLSim
- HSPICE – simulate encrypted HPSICE models within Allegro PCB SI
Field Solvers
- Bem2D – Quasi-static 2D field solver for frequencies below 1GHz
- EMS2D – Full wave, wide spectrum 2D field solver for use from DC up to THz.
| Macro modeling support (DML) |
Differential pair extraction from PCB Editor |
| IBIS 5.0 support |
Current probes |
| IBIS ICM model support |
Multi-terminal black boxes in topologies |
| Spectre-to-DML conversion |
Custom measurement |
| HSPICE-to-IBIS conversion |
Post-layout selection and crosstalk simulation from PCB Editor |
| Graphical topology editor |
HSPICE interface |
| Lossy transmission lines
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Differential signal constraint capture |
| Coupled (3 net) simulation |
Comprehensive simulation |
| Differential pair exploration & simulation |
Sweep simulations |
| Custom stimulus |
Wide-band analytical via model generator |
| Topology append |
HSPICE interface |
| Generate estimated crosstalk tables |
Coupled (>3 nets) simulation |
| Detailed simulation reports |
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