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Description | Comparison | Active
Options | Passive Options | Professional
Version |
FilterMaster Demonstration
Version
|
PC, DOS, Windows 95 or 98 (Does
not run on Windows NT), 640k RAM
EGA OR VGA Monitor and compatible graphics
Optional: Mouse, Printer (Epson/IBM or HP LaserJet and compatibles),
Plotters (HPGL compatible)
The FilterMaster Design Series is a set of standalone PC-based programs used for the specification, synthesis, and analysis of analog LC (lumped element) and active RC filters. FilterMaster programs includes both synthesis, as well as analysis capabilities, which allows filter topologies and characteristics to be easily compared for the optimal results.
Once a filter is finalized, it can be transferred directly onto your SpiceNet schematic and further simulated with IsSpice. The following types of filters can be synthesized:
Available approximations include:
FilterMaster Passive is a lower
cost version of FilterMaster Professional It has reduced features and is capable
of creating filters up to the 10th order. FilterMaster Professional can create
filters up to the 50th order. FilterMaster Active can create filters up to the
20th order. (DOS ONLY)
| Filter Master Passive | FilterMaster Professional |
FilterMaster Active |
|
| Maximum Degree | 10th | 50th | 20th |
| Types
of Filters (LP, HP, BP, BS) |
Passive | Passive | Active |
| Approximations : | |||
| Standard | Yes | Yes | Yes |
| Special General Amplitude | No | Yes | Yes |
| Intelligent Specifications Menu | Yes | Yes | Yes |
| User Specified Tolerance Scheme | No | Yes | Yes |
| Unsymmetrical BP/BS Filters | No | Yes | Yes |
| Parametric BP Filters | No | Yes | No |
| Pole/Zero Output | Yes | Yes | Yes |
| Variable Resistor Terminations | Yes | Yes | No |
| User Defined Circuit Structures | No | Yes | 3 quality levels |
| Choose Device Values from list | Yes | Yes | Yes |
| Graphical Analysis | Yes | Yes | Yes |
| Output to SPICE | Yes | Yes | Yes |
| Monte Carlo Tolerances | Yes | Yes | No |
| Printer/Plotter Support | Same | Same | Same |
| Copy Protection | No | Yes | No |
Partial filters may be regrouped
or have their individual amplifications changed
Poles & Zeros can be rearranged
Substitution of low, medium, and
high quality partial filter structures
Component values are either shown
as precise values or as the best possible match made from series or parallel
connection of a set of user defined standard values
Circuit topologies and values
may be changed or reordered. Reverse, dual and two-port manipulations are available
Variations in the filters are
also possible using Norton/Impedance transformation and Pi-to-Tee conversions
Component quality (Q) factors
may be assigned
Terminating resistor values can
be changed
In the past, designing filters required a great deal of technical knowledge, as well as the ability and patience to work with detailed tables and text books. But today things are different. With FilterMaster Professional designers can produce results in a fraction of the time required using older methods. FilterMaster is a highly specialized CAE tool that synthesizes passive filters. It allows the designer to easily optimize filter specifications and investigate the filter transfer characteristics.
The capabilities of this program go far beyond what can be accomplished with "classical" filter cookbooks. FilterMaster is capable of generating approximations of much greater complexity then those found in data books. But because FilterMaster is so easy to use, even non-specialists can develop high quality, minimum cost filters.
The result for those who use FilterMaster Professional: design manufacturing time are reduced, design errors are eliminated, and the time to market for new products is greatly diminished. In many cases the price of the program will be recouped with your very first filter.
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