User Guide

6
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4 Tutorial: Explorin
g
Desi
g
n Tradeoffs (Active Filter)
The PSpice Optimizer window shows the three parameters (aFc,
aBW and aGain) and the three corresponding goals (Fc, BW,
and Gain). The goals are defined as follows:
The Fc settings as they appear in the Edit Specification dialog
box are shown below.
Note that, to measure performance, all three goals are evaluated
using Probe goal functions.
Settin
g
Center
Frequenc
y
Bandwidt
h
Gain
Name Fc BW Gain
Target 10 1 10
Range 0.1 0.1 1
Analysis AC AC AC
Circuit File bpf bpf bpf
Evaluate CenterFreq
(vdb(out), 1)
Bandwidth
(vdb(out), 3)
max(v(out))
To display the Edit Specifications
dialo
g
box, double-click the
lower ri
g
ht-hand corner of the
specification box of interest in
the PSpice Optimizer window.
When finished browsin
g
, click
Cancel.
double-click here