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Free analog simulation and DSP Tools

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MarkSitkowski

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If you're old school, and like SPICE, here are some tools that might interest you (Sun SPARC or Linux only). They're totally free, with no licence fees or restrictions.
Go to designsim.com.au/analog.html, and download as much as you want:

Graphical circuit design tool
SPICE simulator graphical interface and DSP post-processor
Waveform calculator DSP functions include:
FFT (mag/phase or rela/imag)
IFT (mag/phase or rela/imag)
Convolution
Deconvolution
Differentiation
Integration
Arithmetic functions
Reverse-engineering tool to generate graphical diagram from SPICE netlist
Netlist compiler from graphical diagram to SPICE netlist
SPICE parameter extraction tool from characteristic curves
Component libraries, including
About 800 SPICE2/3 models of semiconductor devices
Full set of Laplace Transform primitives for high level design
Op-amps
Comparators
Magnetic components, transformer cores, in metal and ferrite
Mechanical components, including motors, geartrains,
primitives such as slip, friction and inertia
Opto-isolator library
All the common TTL/LSTTL gate functions, by type number
Macro-models of:
A to D converter
Analogue switch
Binary code generators
D to A converter
FET analogue switch
Transparent Latch 4 bit
Voltage/current limit (bilateral)
Superdiode limiter (comparator)
Transmission line oscillator
Pulse generator
Pulse-width modulation transformer
PLL error amplifier
PLL phase detector
Series regulator 1
J3 SCR macromodel
SG1524 switch-mode power supply controller macromodel
Sample and Hold/Track and Hold
Voltage-controlled Oscillator
 

There appears to be no live link associated with anything
on the analog page.
 

In fact, it does not seem have anything usable there, except for some small programs in C++ at the "download" page). Once there is a contact E-mail available there so that one could go further, this thread was moved to the "Business, Promotions, Advertising" section.
 

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