February 22, 2017

Analog Behavioral Modeling with the Verilog-A Language by Dan FitzPatrick, Ira Miller

By Dan FitzPatrick, Ira Miller

This e-book definately desire an editor. a few of the examples,even the elemental examples are riddled with error. it's an okay learn yet do not anticipate to be a beginner after analyzing this publication.

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Extra resources for Analog Behavioral Modeling with the Verilog-A Language

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6, the relationships between input and output signals is done with contribution statements of the form: output_signal <+ f(input_signals); Where output_signal is a branch potential or flow source that is the target of the contribution operator (<+) assigned by the value of the right-hand side expression, f (input_signals). For example, V(pout1, nout1) <+ expr1; I(pout2, nout2) <+ expr2; 1. The evaluation of the entire group of statements within the analog block at every timepoint is a departure from the semantics of the always statement in digital Verilog.

However, any changes on the output port out would not be seen by the input port in. Signal-flow ports support a subset of the functionality of conservative ports in that KFL is not enforced. As such, one can always use conservative semantics to represent signal-flow components. 5 Signals in Analog Systems The Verilog-A language supports the description and simulation of systems used in many disciplines such as electrical, mechanical, fluid dynamics, and thermodynamics. To accomplish this, Verilog-A uses the concepts of a discipline and nature Analog System Description and Simulation 29 Analog System Description and Simulation for encapsulating the characteristics and physical quantities associated with the different types of analog signals.

KPL and KFL can be used to determine the interconnection relationships for any type of system. 15, where the sum of the potentials around the loop are zero. 16, in which the sum of the flows into a node is zero. Both KPL and KFL are used to relate the values on nodes and branches. The application of both KPL and KFL imply that a node is infinitely 28 Verilog-A HDL Signals in Analog Systems small so that there is negligible difference in potential between any two points on the node and there is a negligible accumulation of flow.

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