In message , Mario Bros
writes
Hi folks,
I would have to ask a clarification regard to the TCXO.
They are found with output TTL, HCMOS and CLIPPED SINE WAVE.
It is just with respect to this last type that I would want to have
elucidations on when it is convenient to employ it, which the advantages and
the disadvantages and which the extension of spectral harmonicas.
In synthesis, from the plan point of view, which are the motivations that
they make to incline towards a Clipped oscillator?

Anticipated thanks.

73's de IK6GQC Rocco


I designed some of the first TCXOs , simple oscillators manufactured
they used no agc control and relied on the average oscillator
maintaining circuit gain to drop to limit oscillation level. Hence
clipped sine.
I.E gain during the transition and no gain during limiting.
This output then coupled to a buffer amp for isolation was the
Lowest cost option.
When logic compatibility was required a logic buffer or open collector
provided.
Also I note that (many years ago) when the first prototypes were
required I looked through a junk box for any small case and selected
most appropriate arbitary case.
These TCXO OCXO case dimensions can now be found as standard from many
TCXO / OCXO manufacturers around the world.
--
dd