[sdiy] square2sine/continuos

[Jay Schwichtenberg]

Ragozzino,

You might look at the data sheet for the LM13700. Use a LM13600 or LM13700
and a dual op-amp. One OTA for the integrator, one for a sine shaper, one
op-amp for a schmitt trigger and the other for a voltage controlled negative
referernced voltage to current converter.

Jay

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Ragozzino
> Pasquale
> Sent: Saturday, December 15, 2001 6:19 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] square2sine/continuos
>
>
> i need to convert a 555 squarewave to sinewave, but since someone told me
> it is very hard, and i need to do it with *very* few components, i will be
> happy with any continous waveform (triangle would be great). i know i
> could use a filter to make a sinewave but in my circuit the 555 frequency
> is variable. thanks.
>
>
>