1. The problem statement, all variables and given/known data I have to design a bandpass filter (300Hz to 3000Hz). I have been given a variety of resistors and capacitors to work with. Oh yes, another thing is that i need an output voltage that's <8V. I'm cascading it with another IC. Capacitors - 10nF, 0.1µF, 0.33µF, 0.47µF, 1µF, 4.7µF, 100µF, 220µF Resistors - 100, 330, 1K, 3.3K, 4.7K, 5.6K, 10K, 22K, 47K I have tried using my textbooks as a reference and i used a given example. Then i tried working from there on... 2. Relevant equations Some of the formulas given are.. (With reference with my "http://img380.imageshack.us/img380/9781/image3kq1.png" [Broken]) [Broken] [Broken] 3. The attempt at a solution I have tried using those formulas, however the best i got was either very small resistance with high capacitance or vice versa. Am i doing it the right way?