[sdiy] Digital Waveshape Generator.

Phillip Harbison alvitar at xavax.com
Sat Jul 12 12:58:27 CEST 2025


Donald Tillman wrote:
> It would be helpful if you could explain your goals for this design.
>  What are you looking for?  How do you want to use it?  What features
 > do you want to support?

This was something I designed in 1980 for my senior project to get my BS 
in electrical engineering. I probably won't change the design other than 
adding a PLL to create a master clock at the desired frequency. I was 
thinking about making a PCB and wanted to know if anyone was interested. 
My areas of interest are Massively-Parallel Processors (MPP) and defense 
(military). I won't be going into the synthesizer business or creating 
sound with an MPP, although the latter is an interest idea.

 > What constraints to you have?

The only constraint at the time was "student is penniless so the design 
is limited to samples and parts he can pilfer from employer inventory."

 > What problems do you want to avoid?

I wanted to avoid frequencies so high as to necessitate using ECL. The 
design document I mentioned details how I solved that problem. You will 
find that here: http://www.xavax.com/alvitar/DWG_Design.pdf

Thanks for your input.

-- 
Phil Harbison




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