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Old 26th February 2002, 08:45 PM   #1
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Default DAC without oversampling

I got interested in building a DAC without oversampling. Here is a link:
http://www.homestead.com/whaan/files/index.html
Did anybody tried that type of design? Any opinions and suggestions welcome.
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Old 27th February 2002, 03:18 AM   #2
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I have one of these 1x dacs (8412/1702) and I am not absolutely certain that its behaviour is not programme dependent.
It seems to prefer Lemon Jelly, Akasha and Peter Gabriel to anything else. Then again it is still only a prototype with crude resistor i/v stage.
But as these things are relatively easy to build especially the TDA1541/3 based ones and those who use them, both diy and commercial, rave about them I say put one together and see for yourself.
ray.
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Old 27th February 2002, 10:20 AM   #3
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Smile x1 oversampling dac

You should have a try.

Here in UK we can also obtain tda 1541 which is also cheap (Cricklewood Electronics), and appears to have better performance figures than the tda1543.

I have built this on Veroboard (matrix board with copper strips), and minimal wires between each small board. It does work, but I have taken it to pieces again because I am getting distortion in quiet passages. This may be because my construction method is too basic.
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Old 27th February 2002, 02:19 PM   #4
tvi is offline tvi  Australia
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You may be interested in the<a href="http://www.tnt-audio.com/clinica/convertusdecima_e.html">Convertus Decima</a> article at TNT audio.


Regards
James
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