[sdiy] Filter Structure Question

[Jay Schwichtenberg]

Scott,

Is there a reason that you gounded the output of the unused inverter in the
schematic?

That along with the fact the input and output are tied together scare me.

Good luck with the design.
Jay

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Scott Gravenhorst
> Sent: Friday, July 16, 2004 12:16 PM
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Filter Structure Question
>
>
> Pictures being worth many more than a thousands words, here is
> what I have envisioned:
>
> http://home1.gte.net/res0658s/CMOS_SVFb.gif
>
> The 4007 power pins are both open.  All of the inverters come
> from the same 4069UB
> package.  The ground symbol is the signal and CV ground, whereas
> the 0volts and
> 5volts terminals are just the regulator outputs.  0volts is not
> connected to
> ground.  Resistor values are SWAGs (SWAG = scientific wild ass
> guess).  From what I
> read below, you would suggest 100 ohm as a SWAG for each power
> supply feed resistor.
>
> Am I close?  Or are you talking about a more specialized power
> supply system?
>