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Desing 5th Order Butterworth Low-pass Filter

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adobe

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Hello,
I need your help!
Can anyone help me solve this problem and design them?
In the following site i have in .pdf the test with all the informations.
**broken link removed**
Thank you very much.

1) Design a low-pass filter of order 5 Butterworth gain 10 (20dB) and f0=1KHz. Only available capacitors of 47nF. Unity gain is not permitted in any cell.



2) Design a triangular wave generator from the following specifications: C=10nF, β=0,5, average value of the signal triangular V0=1Volt, peak to peak volatge V0p-p=10.8Volt and frequency of the signal triangular f=1KHz. Voltage of the A.O. of +-VCC=+-15Volt. The rise time must be twice the downling. Draw the cicruit with the value of the components.
 

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