Difference between revisions of "Talk:BME 153/Spring 2009/Final"
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| − | In Class, you had mentioned that there would not be bandpass op-amp filters, but under op-amps here, you state that we need to know how to "Design 1st and 2nd order filters based on filter parameters such as passband gain, half-power or quarter-power frequencies, natural frequency, linear center frequency, or bandwidth. " under op-amps. Don't these involve bandpass filters? | + | * In Class, you had mentioned that there would not be bandpass op-amp filters, but under op-amps here, you state that we need to know how to "Design 1st and 2nd order filters based on filter parameters such as passband gain, half-power or quarter-power frequencies, natural frequency, linear center frequency, or bandwidth. " under op-amps. Don't these involve bandpass filters? <small>—Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[User:lbl|lbl]] ([[User talk:lbl|talk]] • [[Special:Contributions/lbl|contribs]]) </small><!-- Template:Unsigned --> |
| + | ** So, specifically, I will not require that you design a cascaded active bandpass - the way the book did with an active lowpass followed by an active highpass - because the math is wrong there. However, you can buffer the input to a series LRC and buffer the output from the resistor to make a perfectly acceptable active band-pass with a non-unity gain. Also, be able to build a 2nd order lowpass or highpass with a "double corner" that yields a 40dB per decade dropoff outside of the passband. [[User:DukeEgr93|DukeEgr93]] 22:21, 23 April 2009 (EDT) | ||
Revision as of 02:21, 24 April 2009
- In Class, you had mentioned that there would not be bandpass op-amp filters, but under op-amps here, you state that we need to know how to "Design 1st and 2nd order filters based on filter parameters such as passband gain, half-power or quarter-power frequencies, natural frequency, linear center frequency, or bandwidth. " under op-amps. Don't these involve bandpass filters? —Preceding unsigned comment added by lbl (talk • contribs)
- So, specifically, I will not require that you design a cascaded active bandpass - the way the book did with an active lowpass followed by an active highpass - because the math is wrong there. However, you can buffer the input to a series LRC and buffer the output from the resistor to make a perfectly acceptable active band-pass with a non-unity gain. Also, be able to build a 2nd order lowpass or highpass with a "double corner" that yields a 40dB per decade dropoff outside of the passband. DukeEgr93 22:21, 23 April 2009 (EDT)
