Hi everyone...does anyone of you had been able to use MF4CN? it's a 5th order switched capacitor butterworth low pass filter...i just wanna ask if somone could help me build a low pass filter using MF4CN...or anyone can suggest what IC i should use to create low pass filter.,,except for a simple RC filter....Also for audio amlifier...the output for this is only an 8ohms speaker...if possible,all supply voltage must be 5v-8v only...thnx