AC-Coupled module inputs

[List, Christopher]

> -----Original Message-----
> From:	Martin Czech [SMTP:martin.czech at intermetall.de]
> Sent:	Tuesday, April 27, 1999 1:50 AM
> To:	synth-diy at mailhost.bpa.nl; Chris.List at sc.siemens.com
> Subject:	RE: AC-Coupled module inputs
> 
> > > Sometimes it is difficult to avoid dc offset for outputs at all
> operation
> > > points and over the whole temperature range. E.g. ota.
> > > 
> > 	These modules (e.g. a 3080 based state-var filter that I find always
> > gives me offset problems) should have ac coupling at the final output...
> > 
> Well, I said it is not that easy..., I'd like to enable my vca
> to controll "controll" voltages as well as audio voltages,
> which is not possible with a cap at the output....
> I mean, mixing controll and audio is part of the fun of a modular....
> You really can't tell which is which...
> 
	Yes! Very good point!

> Here we are.
> 1Hz was no joke, this case could be usefull for slow modulation and
> excluding
> any offset. I guess this is the beginning of a new module, a
> anti-slew-unit:
> highpass instead of lowpass (1st order, not voltage controlled).
> 
	Agreed, the "dc eliminator".

	- CList