User`s guide

11
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4 Transient Analysis
To use any of these source types, you must place the symbol in
your schematic and then define its transient behavior.
Each attribute-characterized stimulus has a distinct set of
attributes depending upon the kind of transient behavior it
represents. For VPWL_F_xxx, IPWL_F_xxx, and FSTIM, a
separate file contains the stimulus specification.
As an alternative, the Stimulus Editor utility automates the
process of defining the transient behavior of stimulus devices.
The Stimulus Editor allows you to create analog stimuli which
generate sine wave, repeating pulse, exponential pulse, single-
frequency FM, and piecewise linear waveforms. It also
facilitates creating digital stimuli with complex timing relations.
This applies to both stimulus symbols placed in your schematic
as well as new ones that you might create.
ISRC
IEXP
IPULSE
IPWL
IPWL_RE_FOREVER
IPWL_F_RE_FOREVER
IPWL_N_TIMES
IPWL_F_N_TIMES
ISFFM
ISIN
current sources
DIGCLOCK digital clock signal
STIM1
STIM4
STIM8
STIM16
digital stimuli
FSTIM digital file stimulus
Table 11-1
Stimulus Symbols for Time-Based Input Signals
Specified by... Symbol Name Description
For information on di
g
ital stimuli
characterized by attribute, see
Chapter 14,Digital Simulation.