[sdiy] SSM2164 to use as ring modulator...

[David G Dixon]

> Wouldn't this connection mean that you keep the 2164 output 
> at some other voltages than the virtual ground they are specified for?
> 
> I've seen the output (mis?)used that way in some of the 2164 
> filter schematics out there, but only connected them to 
> virtual earths myself. The datasheet says Output Compliance 
> +/- 0.1 V. How does it behave outside that range?

Yes.  If the 2164 is connected to any significant voltage at all, it freaks
right out.  I learned that the hard way.  This is probably the main downside
of using 2164 -- it complicates (or even renders impractical) many circuits
that you might want to use it for.