God Morning! girl's, guy's and guru's

Right now I am working on a digitaly controlled audio attenuator. The audio path is very straight, an relay based atn. with some op amps to keep impedance down.

All this - 16 small relays and some sort of display - maybee a DLR 2416 - needs some control. I think I will use a 89C52, and some glue logic.

My major concern is NOISE - controller interferring with the audio circuit.

They will of course not share PSU or ground, and they will be placed as long a part as possible, but space is quite thight.

Any comments and sugestions apreciated.

Ha' en sjov dag (copyright Erik)

Per Guldmann