Raised Cosine Waveform without Filter

[Kerim]

If one searches ‘Raised Cosine’, he will likely find that it is related to special filters, called Raised Cosine ones. These filters smooth the fast rise and fall edges of a squarewave signal to remove its higher harmonies. The presented topology below shows that this could be done, to a good approximation, without a filter.

A sample circuit, ‘RaisedCosine_01’, of this topology is attached.