chapter six

Analog Modeling Constructs

A model of an analog system consists of the circuit nodes, analog unknowns to be calculated and the characteristic equations that specify analog behavior. In VHDL-AMS, we use terminals to represent the circuit nodes, quantities for the analog unknowns and simultaneous statements for the characteristic equations. In this chapter, we show how we use these features of VHDL-AMS to model analog, mixed-signal and mixed-technology systems.

6.1 Free Quantities

In previous chapters we have discussed the use of entities and architectures to represent the elements of the system we are modeling. We have also introduced the types and natures we use to describe the allowable values that objects may hold and have discussed ...

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