[sdiy] smoothing out PWM CV

[Derek Holzer]

Hi Tim,

this looks pretty good and pretty simple. Not passive, but as Veronica 
mentioned I might need several stages then. Thanks for pointing that out!

best,
Derek

Tim Parkhurst wrote:

> You might want to check the PWM filter Tom Wiltshire uses on his 
> PIC-based LFO and ADSR projects. Here's a link to the LFO page:
> http://www.electricdruid.net/index.php?page=projects.lfo9
>  
> Look down towards the bottom of the page and click on the Circuit 
> Diagram or LFO Datasheet links to see the schematic. The filter is 
> simple and also includes an extra op-amp to create a +/- 5V signal at 
> the output. I don't know if the PWM frequency you're using is the same, 
> but this might be a good starting point.


-- 
derek holzer ::: http://www.umatic.nl ::: http://blog.myspace.com/macumbista
---Oblique Strategy # 13:
"Are there sections?  Consider transitions"