LPF circuit for rear fill decode


Posted on Feb 7, 2014

Need a little help getting this schematic figured out, most of it is understood with the exception of the triangular objects(amps-opamps?) Not sure what those are or how to implement and order them. Here is the diagram thus far(planning to test with a lpf at 1k and 500, with the hpf staying around 80-100hz)


LPF circuit for rear fill decode
Click here to download the full size of the above Circuit.

The triangle things are opamps, any generic part would do. But the circuit assumes a split +/- power supply which you don't have. It's also much simplified and not detailed enough to be practical. A real circuit would have bypass caps on the power supplies and a coupling cap at the input etc.




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