Ask help for the BP filter reference circuit!

[machael]

hi all:

Now I need to design a bandpass filter circuit. Can any refence circuit can be found? The central freq is 130kHz, the bandwidth is 5kHz. The angle shift in the passband should be as small as possible, no more bigger than 90 degree will be better, so LC circuit is not a good idea.

I prefer the practial circuit reference design, I mean not just the sample in the textbook.

Thank you!

 

[tanzil_dhk]

u can use opamp......do u need a pspice circuit schemetic??

 

[george1]

https://www.electronics-tutorials.com/filters/active-bandpass-filters.htm