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Old 11th December 2003, 03:24 PM   #1
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Default LClock Schematics

Several persons have expressed the wish to view our schematics for various versions LClock.
Therefore i have decided to make them all available here on diyaudio.com, so you can build them freely as you like.

To make it easier to oversee everything i will post the 4 basic schematics in cronological order. (Lclock 1, Lclock 2/C2, Lclock XO/XO2, Lclock XO3).

But please bear with me, i have to find them, check them and brush them up a bit as i go, so it might take a week or two before all schematics are posted.

Here is the first one LClock 1:
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Old 11th December 2003, 03:28 PM   #2
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And a photo of it, the xtal is fitted on the back of the 11 by 44 mm. single sided board.
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Old 11th December 2003, 03:50 PM   #3
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And here is LClock 2 / C2 schematics
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Old 11th December 2003, 04:03 PM   #4
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Thumbs up LC Audio

Hi,

This is a wice/nice set Mr. Clausen.
You have my respect! Good start!


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Old 11th December 2003, 04:15 PM   #5
UrSv is offline UrSv  Sweden
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Extremely generous of you LC. Thanks a heap!
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Old 11th December 2003, 04:32 PM   #6
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Thnx a lot, much appreciated
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Old 11th December 2003, 04:42 PM   #7
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Question Forgive my ignorance but...

I may be interested in making a clock for my CD system, but I do not know a lot about them, what is the difference in the two clock schematics?

Chris
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Old 11th December 2003, 04:53 PM   #8
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Why doesn't anybody use series resonance oscillators? I read somewhere that you get the most stable oscillation by this mode. I don't know if it's true or if it's good when it comes to phase noise.

BTW: I haven't forgotten you, Elso, my promise
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Old 11th December 2003, 05:03 PM   #9
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Peranders: You are right, series resonant mode is better than parallel resonant mode, because the impedance of the crystal in series mode is much lower than in parallel mode. This leads to lower noise sensitivity.
And inside of a CD or DVD player there is plenty of digital noise to disturb the oscillator.

In the two above early LClock's we used parallel resonant mode, as it is the simplest to work with. Later on it will change to series resonance mode.
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Old 11th December 2003, 05:48 PM   #10
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Deep respect for Lars!!
Thank you!
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