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Passive Filters:
Crystal Circuits
Passive Filters -- Main
Page
Last Updated on:
Sunday, April 22, 2012 07:16 AM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Basic Introduction to Filters: Active, Passive & Switched-Capacitor -
National Semiconductor Application Note....[App Note] |
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Notch RC Notch Filter Twin T - The twin T notch filter can be used
block an unwanted frequency or if placed around an op-amp as a bandpass
filter. The notch frequency occurs where the capacitive reactance equals the
resistance Xc=R and if the values are close, the attenuation can be very
high and the notch frequency virtually eliminated. (electronic schematic /
circuit added 4/02) |
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