[sdiy] help with clicks on VCA

[Antti Huovilainen]

On Mon, 17 Aug 2009, Dan Snazelle wrote:

> > Slewrate limiting followed by a lowpass should help a lot.
> > Perhaps use something like TLC27L2
>
> i am not familiar with this chip...i have a lot of them though. they are 
> a single supply opamp right?

Yes. Low power and hence slow, which should be an advantage for a 
(relatively) slow tremolo. TLC27L2 was simply the first opamp that came to 
my mind (not to be confused with TLC27M2 or TLC272 which are much faster).

> also...for a lowpass...can i just use a resistor and a cap?

Should work fine. The idea is to just remove excess unwanted high 
frequency content.

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova