[sdiy] Square to Sine

[Magnus Danielson]

Hi,

It would work, but it only works well for fixed frequency and if the 
output is buffered such that low impedance load does not cause too much 
loss for the pass-band.

What is acceptable so much depends on what you try to achieve.

The tri-to-sine circuits is a non-linear trick that is fairly 
independent on frequency compare to this fixed filter. Another approach 
is to have a filter that tracks the oscillator.

So, what is your original source? what is the frequency of tracking?

Cheers,
Magnus

On 04/04/2017 12:32 PM, Elaine Klopke wrote:
> Does this actually work?
> http://www.learningaboutelectronics.com/Articles/Square-to-sine-wave-converter-circuit.php
>
> I would assume that being 3 RC networks in series means quite the drop
> in volume.
>
> Also, in a related article they show two networks in series converting
> the square wave to a triangle.
>
> All of the converters being dependent on the frequency of the input wave
> being roughly the same as what the RC networks are tuned to.
>
> Thanks guys!
>
> Sent from my iPhone
>
>
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