Electronics > Beginners
How to connect this TCXO oscillator?
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soFPG:
My CPU of choice needs a 13MHz clock signal from a TCXO, input voltage for the TCXO is 2.8V.
I chose the STO-3225A from Siward (http://www.siward.com.tw/uploads/Pro/74/Pro_DM/_P1-72_39.pdf).

My problem now is that I don't know which passive components it needs to function correctly (I have never used a VTCXO before).
What is irritating to me: pin 1 is described as "Tri-state" but what's the actual function of that pin?

Any help is very much appreciated.
james_s:
That is an odd way of describing that pin, I don't think I've ever seen that on an oscillator. I suspect it is an enable pin though, many times it can be left floating and the oscillator will run by default. You might look for a better datasheet for a similar oscillator in the same package style, the pinout seems to be fairly standardized.
soFPG:

--- Quote ---That is an odd way of describing that pin, I don't think I've ever seen that on an oscillator. I suspect it is an enable pin though
--- End quote ---
Enable-pin means it is connected to VTCXO as well (as Pin 4)?

I assume that all TCXO oscillators are basically the same - so is there a general circuit for them?
ArthurDent:
"three-state, tri-state, or 3-state logic allows an output port to assume a high impedance state, effectively removing the output from the circuit, in addition to the 0 and 1 logic levels. "
wraper:
IMHO it's not connected described in weird way.
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