Low cost audio function generator(DDS)

[sougata]

Hi All,

Thanks Ingvar at least you share the same vision as me.

Doing amplitde control is probably too much to ask from a 16F@20MHz but a 18F@40MHz might be able to pull it off.

Actually my client wants to put this module into a breadboard trainer to make it compete better. he does'nt want to increase the manufacturing cost however.

Because the amplitude control will also be used to modulte the base sinewave at a lower frequency it needs to be computed on the fly through a modulation index (I suppose).

Thanks Alain for the link but I cannot read German.(I am not sure even if it is German at all)

[Acetronics2]

Hi All,


Thanks Alain for the link but I cannot read German.(I am not sure even if it is German at all)

The only interesting info here is the price reached ... ~ 50 US $ ( sold ...) .

Alain

[sougata]

Hi,

How about making one for $50 ? Possible ?

[Acetronics2]

Here is the scheme ... and all you should know !!!

http://www.elv-downloads.de/service/...S-Board_km.pdf

and

http://www.elv-downloads.de/service/...M_G_041222.pdf


moreover ... all components are available at this address !!!

Alain

[sougata]

Hi Alain,

Thanks for the links.