Analog and Digital Behavioral Modeling

Laplace sources let you describe the S-plane linear transfer function of a circuit block. Function sources let you model nonlinear behavior. The source can be a mathematical function of any other circuit variable, such as a node voltage or a device current. Z transform sources let you model Z transform expressions such as ones for digital filters. Expressions can also be used for resistor, capacitor, and inductor values. Here are some samples: G*b0/(s**2+b1*s+b0): low pass filter. exp(-c*s*(r+s*l)**.5): transmission line. -k*(v(p)-v(c)+u*(v(g)-v(c)))**1.5: a triode. VZ+tempco*(TEMP-27): reference voltage source. Sin(2*pi*T)*Exp(-T): damped sine wave source. Powerful digital behavioral primitives include logic expressions, pin delay blocks, and constraint checkers. These allow modeling of complex commercial parts like adders, multipliers, converters, and arithmetic logic units.
	Back to Products page