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


A further note the ssb noise will depend on the crystal Q the noise
level in the compensation circuit and the level of crystal oscillation.
Best with no compensation circuit ie XO or OCXO
The smallest crystals cannot be driven as hard as the bigger ones so
dont go for the smallest case!
The easiest way to indicate ssb noise may be to beat two identical
oscillators together with a few HZ offset.
Or lock one to the other using the voltage control line (exclusive or is
the easiest PLL circuit?)
The display the lock voltage on a scope.


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