Speakerguy
Active Member
Hi!
The title says it all. I need to select a stereo source from among several stereo inputs. Are relays or analog switch IC's better in terms of linearity/THD? I see that some relays spec minimum switching loads (mV/uA range). What does that specification mean? And what type of relays should I be using for audio signals?
I have found some analog switch IC's that go anywhere from 50c to 7.00USD. They all have low distortion (<.01%) at 0dBR 2.83V, but the less expensive ones show greatly increasing distortion (straight line) at decreasing signal levels. Crossover distortion or noise, not sure which.
Anyway, any and all help is appreciated. Thanks!
The title says it all. I need to select a stereo source from among several stereo inputs. Are relays or analog switch IC's better in terms of linearity/THD? I see that some relays spec minimum switching loads (mV/uA range). What does that specification mean? And what type of relays should I be using for audio signals?
I have found some analog switch IC's that go anywhere from 50c to 7.00USD. They all have low distortion (<.01%) at 0dBR 2.83V, but the less expensive ones show greatly increasing distortion (straight line) at decreasing signal levels. Crossover distortion or noise, not sure which.
Anyway, any and all help is appreciated. Thanks!