I have the following two chips, LM10CCN and the LM100CCN for which I was going to make a circuit. The signal input will be from the headphone output of a portable MP3 player. One or the other of these chips, not sure which, was to separate the inpt sound into High, Mid, and Low frequencies, Hence I need to make the chips perform as a High-Pass, Band-Pass, and Low-Pass filters. The output of these three separate signals will controll three different color
LED's in a pair of goggles. I already have the circuit that makes the LED's flash based on signal intensity. I bought these chips thinking it would be easy to build the circuit, but was lost when reading the datasheets!
If anyone can aid me in designing this I would be most helpfull.
These are switched capacitor filters, they need a clock. I've used Linear Tech's switched cap filters, via filtercad they offer. These are older generation chips, so you'll have to drill through the formulae to get the proper resistor/capacitor values for your cutoffs (as well as the clock).