Cooper LP800 Guia do Utilizador descarregar pdf (Página 38)

100

101

2 Thin

s You Need to Know

What is PSpice A/D?

MicroSim PSpice A/D is a simulation program that models the

behavior of a circuit containing any mix of analog and digital

devices. Used with MicroSim Schematics for design entry, you

can think of PSpice A/D as a software-based breadboard of your

circuit that you can use to test and refine your design before ever

touching a piece of hardware.

Run basic and advanced anal

ses

PSpice A/D can

perform:

• DC, AC, and transient analyses, so you can test the response

of your circuit to different inputs.

• Parametric, Monte Carlo, and sensitivity/worst-case

analyses, so you can see how your circuit’s behavior varies

with changing component values.

• Digital worst-case timing analysis to help you find timing

problems that occur with only certain combinations of slow

and fast signal transmissions.

Use parts from MicroSim’s extensive set of

libraries

The model libraries feature over 10,200 analog

and 1,600 digital models of parts made in North America, Japan,

and Europe.

Var

device characteristics without creatin

new parts

PSpice A/D has numerous built-in models with

parameters that you can tweak for a given device. These include

independent temperature effects.

Model behavior

PSpice A/D supports analog and digital

behavioral modeling so you can describe functional blocks of

circuitry using mathematical expressions and functions.

Because the analo

and di

ital

simulation al

orithms are built

into the same pro

ram, PSpice

A/D simulates mixed-si

nal

circuits with no performance

radation because of ti

htly

coupled feedback loops between

the analo

and di

ital sections.

The ran

e of models built into

PSpice A/D include not only

those for resistors, inductors,

capacitors, and bipolar

transistors, but also these:

• transmission line models,

includin

delay, reflection,

loss, dispersion, and

crosstalk

• nonlinear ma

netic core

models, includin

saturation

and hysteresis

• six MOSFET models,

includin

BSIM3 version 3

• five GaAsFET models,

includin

Parker-Skellern and

TriQuint’s TOM2 model

• IGBTs

• di

ital components with

analo

I/O models

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