TopSPICE/Win32 v7.1
For Windows 98/ME/2000/XP/Vista
An affordable integrated computer-aided circuit design software package offering advanced native mixed-mode mixed-signal analog/digital/behavioral simulation based on the industry standard SPICE program.
Product Overview
Product Highlights
Native Mixed-Mode Simulation
Advanced Features
Analog Behavioral Modeling
Integrated Design Environment
Schematic Capture
Easy Analysis Set Up
Graphical Post-Processor
TopSPICE Simulator Devices, Models and Commands
Model Libraries
Documentation
Updates
User Support
Technical Specifications
PDF Product Brochure
(to download PDF file, right-click, select "Save target/link as")
TopSPICE is still the price/performance leader in true analog/digital/behavioral mixed-mode simulation for the PC. It offers the most advanced simulator in its price range, compatibility, and a quick and easy to use integrated design environment from schematic capture to graphical waveform analysis.
With TopSPICE you have the choice to design from schematic drawings, text netlist (SPICE) files or both. All design and simulation functions are available from either the schematic or netlist editor front-ends.
TopSPICE includes a native full-featured mixed-mode mixed-signal circuit simulator capable of simulating circuits containing any arbitrary combination of analog devices, digital functions and high-level behavioral blocks. With TopSPICE you can verify and optimize your design from the system to the transistor level. By using the built-in logic simulator to simulate the digital sections of your circuit instead of analog equivalents, mixed-mode simulation times can be reduced by orders of magnitude.
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SPICE has become the de facto industry standard for analog circuit simulation. It offers the advantages of a large user base, large number of existing device models, modeling support by component manufacturers, and compatibility between CAD vendors. However, SPICE is an analog only simulation technology. State-of-art mixed technology circuit designs require a hierarchical top-down design environment with a circuit simulator capable of handling different levels of abstraction simultaneously.
TopSPICE implements a fully integrated mixed-mode simulation technology. The analog electrical simulation and the logic simulation algorithms are merged into a single simulator architecture. Both algorithms operate under a single event scheduler to most efficiently solve time advancement, backup, signal conversion and convergence issues in mixed-mode simulation. The logic simulator implemented in TopSPICE is fully event-driven. The digital section of the circuit is only evaluated when a logic event takes place during the simulation. Since logic simulation is most efficiently handled in terms of discrete time steps, TopSPICE uses independent time steps for simulating the analog and digital sections of the circuit. TopSPICE also implements a common SPICE like input syntax for both analog and digital sections for getting those designers familiar with SPICE rapidly on board.
Powerful waveform analysis and post-processing functions.
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The analog behavioral modeling capability allows the designer to describe electronic components and circuit functional blocks using transfer functions. This "black box" approach is a very powerful tool for modeling complex devices, speeding up simulation of large systems and developing a top-down design methodology.
The following options for specifying transfer functions are available in TopSPICE: arbitrary equations of V, I, time and temperature; built-in math functions; look-up tables; Laplace transforms; frequency response tables; s-parameter tables; logical and relational expressions.
| *Behavioral model of comparator ECOMP 1 0 TABLE {V(in)} = (-1mV,0.2V) (1mV,3.6V) RES 1 0 150 ;source load *Transmission line used as a delay line TDLY 1 0 delay 0 (ZO=150 TD=20ns) RTL delay 0 150 ;termination *Digital D flip-flop element U1 DFF outlo outhi $D_HI $D_HI in delay FFD .MODEL FFD UEFF (TPCLKLH=2ns TPCLKHL=2ns) |
TopSPICE mixed-mode description of a FSK demodulator.
TopSPICE offers a fully integrated environment to capture, simulate, and analyze your circuit designs. Its flexible architecture allows the designer to integrate all the design tools, including third party tools and model libraries, into a complete EDA system.
The schematic editor front-end provides an easy way to create and edit circuit drawings. TopSPICE Schematic features:
TopSPICE offers both an easy to use interface for beginners and maximum flexibility for expert SPICE users. Most simulation analysis commands can be specified by selecting menu options. Experienced SPICE users also have the option of entering commands in text form directly on the schematic drawing or a separate command file.
GRAPHICAL POST-PROCESSOR WITH WAVEFORM ANALYSIS
Interactive graphical SPICE post-processor program to plot and analyze SPICE output data. Features smart auto-plotting, multiple plot axes, analog and digital waveforms on the same graph, cursor measurements, powerful waveform analysis functions, statistical and performance measurements, Smith charts, polar charts, "eye display" plots, complex-number expressions, and complete graph labeling and formatting options.
TopSPICE provides built-in magnetic core and other advanced models.
Extensive simulation model library of over 17,000 analog and digital parts. TopSPICE is also compatible with most SPICE model libraries supplied by component manufacturers and other SPICE vendors.
To view the complete list of models included, browse the Model Library Catalog file (library.txt, 500KB). Or, download and install the Demo version. Then, open the "Model Library Database" icon in the TopSPICE folder, or select "Tools|Model libraries|Model Database" command from either the Schematic Editor or Circuit File Editor menu.
TopSPICE Simulator Devices, Models and Commands
Complete printed manuals (550 plus pages), extensive online help, over 180 example circuit files, and complete device model library database.
We provide comprehensive and prompt support for our products to registered users:
Complete printed documentation and online help.
Free technical support for 90 days.2
Discount offers for upgrades and new products.
Low cost annual Maintenance Service contracts.
2 Limitations apply, call or write for complete details.
Penzar Development makes frequent updates based on user feedback. Registered users have the option to purchase individual updates or a Maintenance Service.
Prices and product specifications are subject to change without notice.
All company and product names are trademarks or registered trademarks of their respective holders.
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