3-Pin Ceramic Resonator Question.

Charlie · 30 April 2010, 00:27

Hello all, another one of those 'I don't really know what I'm doing but I'm trying' questions...

I've tried googling this but I must be asking the wrong question.

I've been making a few (small) projects often including your boggo CRO's, eg:

I guess I must have some understanding as the circuits actually work!

I've noticed these:

3-Pin Ceramic Resonator

Cheaper and much smaller - I like small, makes finding quiet corners for my mods easier. Obviously cheap is good too...

I keep reading that resonators (at least the ones containing caps) can be used in place of CRO's if you're not too fussed about spot-on accuracy but what are the practicable details?

What must one do to take a circuit designed for a CRO (what I know) and mod it to accept an equivalent resonator..?

-CRO: +5v, GND, Out, NC
-Resonator GND, other two pins for the old 'oscillating'
Obviously not a direct swap...

Thanks again.

rkauer · 30 April 2010, 01:15

The tinned oscillator have a F series TTL inside it to filter the noise from the ordinary crystal, that's why they are only 5V-tolerant.

Search for pages where people show how to make an oscillator from a common one.

Charlie · 30 April 2010, 15:26

Thanks rkauer

30 April 2010, 00:27	#1
Charlie . . Mouse . . Join Date: Jun 2005 Location: Nowhere Age: 55 Posts: 1,792	3-Pin Ceramic Resonator Question. Hello all, another one of those 'I don't really know what I'm doing but I'm trying' questions... I've tried googling this but I must be asking the wrong question. I've been making a few (small) projects often including your boggo CRO's, eg: I guess I must have some understanding as the circuits actually work! I've noticed these: 3-Pin Ceramic Resonator Cheaper and much smaller - I like small, makes finding quiet corners for my mods easier. Obviously cheap is good too... I keep reading that resonators (at least the ones containing caps) can be used in place of CRO's if you're not too fussed about spot-on accuracy but what are the practicable details? What must one do to take a circuit designed for a CRO (what I know) and mod it to accept an equivalent resonator..? -CRO: +5v, GND, Out, NC -Resonator GND, other two pins for the old 'oscillating' Obviously not a direct swap... Thanks again.

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30 April 2010, 01:15	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	The tinned oscillator have a F series TTL inside it to filter the noise from the ordinary crystal, that's why they are only 5V-tolerant. Search for pages where people show how to make an oscillator from a common one.

30 April 2010, 15:26	#3
Charlie . . Mouse . . Join Date: Jun 2005 Location: Nowhere Age: 55 Posts: 1,792	Thanks rkauer

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