| Electronics > Beginners |
| How to connect this TCXO oscillator? |
| (1/3) > >> |
| 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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