Mix Analog and Digital Signals

Combine analog circuit behaviors with digital models to create more detailed representations of electronic systems

In electronic systems that combine analog processing with logic gates, several parameters are essential to the overall behavior of the system. These parameters include the finite slew rate of circuit output signals, the propagation delay of signals, and the exact decision threshold of circuit inputs. Add blocks to your model to include these effects in time domain simulations of the system.

Blocks

Slew RateModel amplitude, rise and fall times, and propagation delay of logic gates
Logic DecisionThreshold crossing detector at input to binary process
Variable Pulse DelayDelay samples by controlled, continuously variable amount
Linear Circuit WizardGenerate or modify linear circuit

Topics

Model Linear Circuit Response from SPICE Netlist

Model the response of a linear circuit described by a SPICE netlist.

Ports Supported in Linear Circuit Wizard

Review and modify the ports of a linear circuit before generating a block to model it.

Define Device Noise Using Linear Circuit Wizard

You can use the Linear Circuit Wizard block to model the device noise generated by a linear circuit.

MATLAB Systems Generated from Linear Circuit Wizard

You can use a single Linear Circuit Wizard block to configure one or more MATLAB System blocks.

Featured Examples

Logic Timing Simulation

Logic Timing Simulation

Use the Variable Pulse Delay block to create accurate timing models of logic circuits.

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Digital Timing Using Fixed Step Sampling

Digital Timing Using Fixed Step Sampling

Model a three stage ring oscillator using a combination of fixed step and variable step discrete sample times.

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Digital Timing Using Solutions to Ordinary Differential Equations

Digital Timing Using Solutions to Ordinary Differential Equations

Model a three stage ring oscillator using models defined by ordinary differential equations (ODE).

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Circuit Design Details Affect PLL Performance

Circuit Design Details Affect PLL Performance

Use the Linear Circuit Wizard block to evaluate the effect of loop filter circuit design details on the performance of a phase-locked loop.

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Analyze T-Coil Circuit

Analyze T-Coil Circuit

Use the Linear Circuit Wizard block to analyze a T-coil impedance matching circuit and generate S-parameter data from the result.

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Mixed-Signal Blockset Documentation

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