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Old 13th August 2003, 12:50 AM   #1
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Default know of a web-based calculator for a multiple feedback band pass filter?

i need to figure out some Q for this circuit:
Click the image to open in full size.

i have a macintosh though so can't use the rod elliot calculator program.

is this one for the same circuit? i think its not
http://home.comcast.net/~sbernardi/e...alculator.html

i remember doing this in school and it took me forever to do just one (on paper) i don't want to do ten of them.

i bet i can just find a table somewhere of the values for an octave band eq.
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Old 13th August 2003, 02:13 AM   #2
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Default link to ADI web-based filter design

here's the link:
http://www.analog.com/Analog_Root/st...er/filter.html

you can calculate the "Q" by hand
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Old 13th August 2003, 05:08 AM   #3
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thanks, that was handy
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