User Guide

6
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2 Tutorial: Explorin
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Desi
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n Tradeoffs (Active Filter)
The Active Filter Desi
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The filter has three adjustable resistors. These resistors adjust
center frequency, bandwidth, and gain. In this case, the
adjustments are interdependent.
Requirements for the filter are:
• Center frequency (Fc) must be 10 Hz with 1% accuracy.
• 3 dB bandwidth (BW) must be 1 Hz with 10% accuracy.
• Gain (Gain) must be 10 with 10% accuracy.
To load the active filter desi
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1
From the Windows 95 Start menu, select the MicroSim
program folder and then the Schematics shortcut to start
Schematics.
2
From the File menu, select Open.
3
Move to the directory containing
bpf.sch
(\MicroSim_root\examples\optimize\bpf) and select the
schematic file in the File Name list.
Fi
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ure 6-1
Schematic for the Active Filter Example, bpf.sch