I need some filter circuit design guides!

[ymq8328]

plz send some files and free software to me. thks.

 

[leomecma]

Try this book: Analog and digital filter design in forum has the book.
For active filters see FilterLab by Microchip:

**broken link removed**

leomecma

 

[schwang1970]

you can see the NS or TI web there are many free software and reference for analog filter design.

 

[sunking]

**broken link removed**

 

[xwcwc1234]

Is there any materials existed for switched-cap filter design ?

 

[DoctorX]

Is there any materials existed for switched-cap filter design ?

 

[nero007]

come to this website:www.circuitsage.com.there are so many articles and software for filter design.