User Guide

Trace expressions
365
Note For AC analysis, PSpice uses complex arithmetic to evaluate trace
expressions. If the result of the expression is complex, then its
magnitude is displayed.
Rules for numeric values suffixes
Explicit numeric values are entered in trace expressions in
the same form as in simulation analyses (by means of part
properties in Capture), with the following exceptions:
•
Suffixes M and MEG are replaced with m (milli, 1E-3)
and M (mega, 1E+6), respectively.
G(x) group delay of x (seconds) NO
PWR(x,y) |x|
y
YES
SIN(x)
sin
(x) YES
COS(x)
cos
(x) YES
TAN(x)
tan
(x) YES
ATAN(x)
ARCTAN(x)
tan
-1
(x) YES
d(x) derivative of x with respect to the
x-axis variable
YES*
s(x) integral of x over the range of the
x-axis variable
YES**
AVG(x) running average of x over the range of
the x-axis variable
NO
AVGX(x,d) running average of x from
X_axis_value(x)-d to X_axis_value(x)
NO
RMS(x) running RMS average of x over the
range of the x-axis variable
NO
DB(x) magnitude in decibels of x NO
MIN(x) minimum of the real part of x NO
MAX(x) maximum of the real part of x NO
* In PSpice, this function is called DDT(x).
** In PSpice, this function is called SDT(x).
Table 12
Analog arithmetic functions for trace expressions
Probe
function
Description
Available in
PSpice?
Pspug.book Page 365 Wednesday, November 11, 1998 1:14 PM