Santa Clara, Calif.--March 23, 1998--At the PCB Design Conference West, Cadence Design Systems, Inc. announced the availability of a Windows NT-based Allegro viewer, a "CAD-neutral" Spice-to-IBIS converter; and new high-speed "Models-on-Demand" services. The Allegro viewer and Spice-to-IBIS converter are free and immediately downloadable from the World Wide Web.
These moves are targeted at breaking down the barriers to high-speed printed circuit board (PCB) design. The Allegro viewer and Spice-to-IBIS converter are on display at the PCB Design West Conference at the Santa Clara Convention Center in Santa Clara, Calif. in the Cadence booth #502.
The Allegro viewer allows users to display and plot Allegro PCB designs at any stage in the design cycle.
During initial and final placement and routing, manufacturing engineers can preview the design for fabrication and assembly requirements. Additionally, the viewer enables managers to monitor design progress and engineers to review the physical design. The web-based delivery mechanism and the fact that the product is free offers unlimited access to the Allegro viewer and ensures rapid delivery of future updates to customersbased on user feedback.
IBIS is the industry standard for describing input/output (I/O) buffer characteristics. Public domain utilities or company proprietary tools are available to help with the problem of converting detailed Spice decks to IBIS format. However, these are often cumbersome and costly to use and maintain.
Cadence is taking these tools a step further by making them easier to use, more robust, and widely accessible to the entire design community.
Cadence's service-based approach to IBIS and complex high-speed modeling offers a "staff-as-required" resource that is deployed on a project-by-project basis by component suppliers and systems companies. Cadence services are backed by a staff of modeling professionals that includes Spice experts and analysis engineers experienced in both the development and production use of IBIS models.
Cadence's modeling team develops IBIS models using a combination of I/O Spice files and component datasheets. All IBIS models are verified to data book loading specifications through simulation using the production-proven suite of signal integrity analysis tools in Cadence's Specctraquest interconnect designer. The signal integrity simulations are then correlated with Spice simulation results to assure accuracy.
Cadence's Spice-to-IBIS converter, the Allegro viewer, and information about the Models-on-Demand can be downloaded via the World Wide Web at www.cadence.com/software/pcb_info.html. The Spice-to-IBIS converter and Allegro viewer are available free of charge.
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