AW: VC pots
HJ2743 at denbgm3xm.scnn1.msmgate.m30x.nbg.scn.de
Fri Oct 27 18:12:00 CET 1995
> I don't know the exact definition for "OTA", but I think some
> VCA circuits use a modified 4-quadrant-multiplier structure and
> have the audio signal modulating the *current sources* of
> the two long tailed pairs, routing the *control voltage*
> to the bases of the pairs.
>Ah yes, of course! This arrangement does deserve a seperate catagory
>because the circuit configuaration has sufficiently different
Do You know something about the drawbacks of this architecture?
I heard that with these VCAs distortion would increase with decreasing
control voltage, but I haven't dug deeper into that. Any ideas?
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