Forums

Crystals Oscillators and Usage

Started by Zv_oDD March 2, 2012
So I'm playing with a AVR PiC, the ATMEGA32. And its needs 16mhz crystal hooked to it like so:

http://tinypic.com/r/ei9im9/5
Note; I used a Cap and Inductor pair for the crystal symbol.


I am just wondering what is the role of the capacitors?
Can I use 1uf caps instead and still get 16Mhz?
On Fri, 2 Mar 2012 02:58:08 -0800 (PST), Zv_oDD <zv.odd.101@gmail.com>
wrote:

>So I'm playing with a AVR PiC, the ATMEGA32. And its needs 16mhz crystal hooked to it like so: > >http://tinypic.com/r/ei9im9/5 >Note; I used a Cap and Inductor pair for the crystal symbol. > > >I am just wondering what is the role of the capacitors? >Can I use 1uf caps instead and still get 16Mhz?
Hi, Rather than just tell you I would like to refer you here: http://www.electronics-tutorials.ws/oscillator/crystal.html have fun, Tom
On Fri, 2 Mar 2012 02:58:08 -0800 (PST), Zv_oDD <zv.odd.101@gmail.com>
wrote:

>So I'm playing with a AVR PiC, the ATMEGA32. And its needs 16mhz crystal hooked to it like so: > >http://tinypic.com/r/ei9im9/5 >Note; I used a Cap and Inductor pair for the crystal symbol. > > >I am just wondering what is the role of the capacitors?
--- http://ww1.microchip.com/downloads/en/AppNotes/00826a.pdf --- Can I use 1uf caps instead and still get 16Mhz? --- No. -- JF
On Fri, 02 Mar 2012 11:03:27 -0500, Tom Biasi wrote:

> Rather than just tell you I would like to refer you here: > http://www.electronics-tutorials.ws/oscillator/crystal.html
Tom, that's a great tutorial. Short and sweet, yet informative. Thanks for that. -- F: When into a room I plunge, I Sometimes find some VIOLET FUNGI. Then I linger, darkly brooding On the poison they're exuding. -- The Roguelet's ABC
On Fri, 02 Mar 2012 20:16:59 GMT, Chiron <chiron613@gmail.com> wrote:

>On Fri, 02 Mar 2012 11:03:27 -0500, Tom Biasi wrote: > >> Rather than just tell you I would like to refer you here: >> http://www.electronics-tutorials.ws/oscillator/crystal.html > >Tom, that's a great tutorial. Short and sweet, yet informative. Thanks >for that.
You're welcome.