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Switch between inputs using a 4532B

Question asked by borisbergman on Sep 15, 2011
Latest reply on Nov 2, 2011 by BrettG

Dear technical skilled people,


For an audio system I would like to have an input selector. The selection is made by a rotary switch. This switch has 5 poles which includes the ground and 4 selectors. Due to the limited available io ports, I would like to connect the switch to just 2 pins. My plans are to mount an encoder (4532B) just before the switch, and have a 2 bits parallel output. This is also the case for 3 other switches used in the project.


The system has 4 inputs and 4 outputs. On each output a switch has to select one of the 4 inputs.


I saw sigma studio has some simple logic components available, but do I really have to use them? I could build a decoder, but wouldn’t I reinvent the wheel? Are there some better suitable components available to do this? And what is the best way to switch between in and outputs? Do I need a fader?


Thanks a lot in advance.