3rd overtone crystal oscillator - Electronic Circuits Projects Diagrams Free

student1 · 13th August 2007, 12:57 PM

HI Guys.

Im very interested in electronics and am eager to learn about the subject. I need to design and test a 3rd overtone crystal controlled oscillator for 43,66 MHz from a 9 volt supply using the Pierce topology and then repeat the exercise using the Driscoll topology for the oscillator.

I've found some texts on the subject but am quite lost.
I need to use a mid point biased BFR92A transistor? How do i do this?
What kind of circuit would i have?
How do you get 3rd overtone??
I'm not sure what kind of pierce configuration to use?
And i have no idea what the driscoll topology is?

Plz help me guys. Any help would be appreciated.

Thanks

**Nigel Goodwin** · 13th August 2007, 01:15 PM

I suggest you try using google, you can find everything you need on there!.

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13th August 2007, 12:57 PM	(permalink)
student1	3rd overtone crystal oscillator HI Guys. Im very interested in electronics and am eager to learn about the subject. I need to design and test a 3rd overtone crystal controlled oscillator for 43,66 MHz from a 9 volt supply using the Pierce topology and then repeat the exercise using the Driscoll topology for the oscillator. I've found some texts on the subject but am quite lost. I need to use a mid point biased BFR92A transistor? How do i do this? What kind of circuit would i have? How do you get 3rd overtone?? I'm not sure what kind of pierce configuration to use? And i have no idea what the driscoll topology is? Plz help me guys. Any help would be appreciated. Thanks

13th August 2007, 01:15 PM	(permalink)
Nigel Goodwin	I suggest you try using google, you can find everything you need on there!. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk