3 Way Active Crossover TL074

Thursday, October 13th, 2011 - Audio Processor

3 way active crossover TL074 is an active filter circuit 3 lines built by IC TL074. In a 3 way active crossover point is able to pass 3 band tone (Bass, Midrange, and Treble) separately. Active crossover circuit is constructed of active filter Low Pass, Band Pass and High Pass are made ​​with Op Amp TL074 that has slewrate very low and low noise. Working voltage for the circuit of this active crossover is a DC voltage symmetrical ± 15 volts.

Circuit Of 3 Way Active Crossover TL074

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Working frequency of the active crossover Low Pass is a pass for bass tone frequencies below 300Hz are formulated with the following formula.

fh = 1 / (2 * π * R1 * C1)

For High pass filter of the above active crossover circuit is an audio signal pass treble tone with a frequency range above 3000Hz, and formulated with the following formula.

fl = 1 / (2 * π * R3 * C3)

Then for the band pass filter for passing intermediate or midrange tone is the tone missed over the frequency range below 300Hz and 3000Hz frequency range.

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