[sdiy] switching audio lines using a DG211 analog switch?

[James Patchell]

The DG211 is a very versatile analog switch.  Very little bleed through and 
cross talk at audio frequencies...and you can place it anywhere you want as 
long as you don't exceed the power supply rails.

At 12:16 PM 1/16/2006 -0800, Dino Leone wrote:

>Hi all,
>
>I would like to switch between pairs (LP vs BP from state-variable 
>filters) of outputs using DG211 analog switches. Now I'm wondering if the 
>switch would generate any noise (like bleed-through etc)? Or is that no 
>problem? Also, should I put the switch after the last opamp, which scales 
>the audio signal up to 10Vpp, or should I instead have the switch before 
>that last inverting amplifier (which would maybe amplify switch noise)?
>
>Many thanks in advance,
>
>Dino
>
>
>
>

         -Jim
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