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Old 18th April 2010, 10:43 PM   #11
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Hello

I have six TDA1541A that I've buy in the 90's, original from Phillips.

I've try few kind of dac, but I still hesitate to try this analog oversampling, but with so much chip and the CD4517 it may have lot of jitter ?

Have you seen any errors in that 4X analog oversampling schematic ?

Thank

Bye

Gaetan

Last edited by gaetan8888; 18th April 2010 at 10:48 PM.
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Old 18th April 2010, 11:38 PM   #12
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It is another thread around here about this kind of linear interpolation/oversampling.
You can sweep thru
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Old 19th April 2010, 10:32 PM   #13
amc184 is offline amc184  New Zealand
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I second the above, that thread has some great stuff going on.

Mucking around with glue logic can be unpredictable. It may sound better than four TDA1541As in parallel, or it may not work at all, and I can't tell which from one very incomplete schematic.

I especially steer clear of those designs since I don't like to prototype. You've got to do a lot of prototyping o make stuff like that work well.
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Old 20th April 2010, 05:38 PM   #14
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gaetan8888 i answered you in a e-mail letter, but do not know whether it has come to you.
Hi Gaetan
1244 needs 384fs clock. He was designed for 48BCK but works even with 64BCK. You need sync reclock after DF. And be VERY carefully, OS DAC is much harder to build compared to simple NOS.
1244 works with 64BCK in my dac Overture v3.0

Regards, Nazar
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Old 22nd April 2010, 09:48 PM   #15
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Quote:
Originally Posted by Nazar_lv View Post
gaetan8888 i answered you in a e-mail letter, but do not know whether it has come to you.
Hi Gaetan
1244 needs 384fs clock. He was designed for 48BCK but works even with 64BCK. You need sync reclock after DF. And be VERY carefully, OS DAC is much harder to build compared to simple NOS.
1244 works with 64BCK in my dac Overture v3.0

Regards, Nazar
Hello

I will look at my anti-spam section, sometime I can received one email and the other are stop by the anti-spam or sometime (but not often) Hotmail don't send the email I want to send. Sorry for that.

I've found a Adcom GCD-600 cd player for low cost and I mod it a bit, it sound better than my Denon DCM-420, but it still could be much better with more complex orchestral music. The CXD1244 would come from my Adcom GCD-600 cd player.

After trying few diy Dac I'm looking for better but can't find all types of digital filter or dac chip, so I allways work with the parts from my parts bin.

Complex orchestral music are the reason why I did not like non-oversampling Dac.

Btw I don't see the schematic of your dac Overture v3.0 in your web site.

Thank

Bye

Gaetan

Last edited by gaetan8888; 22nd April 2010 at 09:52 PM.
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