N
Norm Obrien
- Jan 1, 1970
- 0
I have been scouring the web for a digital sinewave generator that
will do 1-50Hz, either with a programmable divide down chain, or a
linear pot.
Most of the successful designs now seem to use dedicated IC's or
SCF's. I would prefer something with common CMOS parts and a two pole
LP passive flter ... and without having to manually switch capacitors.
I can live with a bit of distortion, but was thinking it might be
minimized by using a staircase approach. Perhaps this is inherently
easier to smooth/filter. Or maybe generating a triangle wave would
facilitate filtering in some way.
Can anyone offer a few suggestions as to the best design options for
this project?
Much thanks,
Norman
will do 1-50Hz, either with a programmable divide down chain, or a
linear pot.
Most of the successful designs now seem to use dedicated IC's or
SCF's. I would prefer something with common CMOS parts and a two pole
LP passive flter ... and without having to manually switch capacitors.
I can live with a bit of distortion, but was thinking it might be
minimized by using a staircase approach. Perhaps this is inherently
easier to smooth/filter. Or maybe generating a triangle wave would
facilitate filtering in some way.
Can anyone offer a few suggestions as to the best design options for
this project?
Much thanks,
Norman