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Old 3rd June 2009, 09:27 AM   #1
atcgreg is offline atcgreg  Luxembourg
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Default low jitter clock help needed

Hi

Could some one help me out in connecting a low jitter clock to a Sony CDP101 cd player.

I attached a scan of the schematic where i found the clock but am confused with the topografy of it. Meaning all the low jitter clock instalations are simple "just remove the XO / caps ..and connect the new clock"

Could somebody take a look and tell if i take out the XO and the other parts , connect the new clock to pin 26 or 27 , to both.

I would go with the trail and error approach but I am afraid i could ruin the DAC. If i am not careful.

looking forward to the wisdom of the forum
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File Type: gif sony cdp clock .gif (86.0 KB, 463 views)
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Old 4th June 2009, 02:19 PM   #2
oshifis is offline oshifis  Hungary
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I would connect it like this:
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Old 4th June 2009, 02:33 PM   #3
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Quote:
Originally posted by oshifis
I would connect it like this:

I would rather connect to C IN.
If you are using a kwak-clock you could also connect the inverted output to -C IN (pin 27). And omit the transformer.
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Old 4th June 2009, 09:56 PM   #4
atcgreg is offline atcgreg  Luxembourg
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Question clock connection

Hi
Thanks for the reply I will try both and see if it works.
great help .

I looked at the kwak clock and do not know where is the inverted output of the clock. I must say I am new at this I am more on the practical side and better on reading / understanding schematics than on the theory side.

I am attaching the schematics of the kwak clock i am using.

Thanks anyway TICO
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File Type: gif kwak-clock-7a.gif (24.5 KB, 350 views)
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Old 4th June 2009, 10:06 PM   #5
pilli is offline pilli  France
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Default Re: clock connection

Quote:
Originally posted by atcgreg

I looked at the kwak clock and do not know where is the inverted output of the clock.
The inverted clock is from pin 7 of the comparator (AD8561 or MAX913)


_
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Old 5th June 2009, 05:59 AM   #6
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Default Re: Re: clock connection

Quote:
Originally posted by pilli


The inverted clock is from pin 7 of the comparator (AD8561 or MAX913)


_
right
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Old 5th June 2009, 10:07 AM   #7
atcgreg is offline atcgreg  Luxembourg
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Thumbs up kwak clock

Thanks Pilli and Tico


I will post my results when i hook it up
Thanks again guys.
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Old 5th June 2009, 10:24 AM   #8
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Default Re: kwak clock

Quote:
Originally posted by atcgreg
Thanks Pilli and Tico


I will post my results when i hook it up
Thanks again guys.

I am afraid that 35MHz crystal will not work in the kwak-clock....
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Old 5th June 2009, 10:32 AM   #9
atcgreg is offline atcgreg  Luxembourg
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Default clock connections

Well i will see i did try it with 27Mhz and it worked fine.

I have an oscilloscope to track the signal if that does not trigger then i have a similar design the hagclock and try that.
thanks
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Old 5th June 2009, 10:34 AM   #10
atcgreg is offline atcgreg  Luxembourg
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or this one as well.
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