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Old 17th January 2013, 06:19 PM   #11
JanErik is offline JanErik  Finland
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I meant TDA1543... and what is wrong with oversampling?
Yes, I am very satisfied already with PCM2705, but they all have worse specs than the PCM2702 that was used in the AlienDAC, and it is not available anymore.
Plus, the PCM1792 would give balanced outputs natively.
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Old 18th January 2013, 04:01 PM   #12
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Quote:
Originally Posted by JanErik View Post
I meant TDA1543... and what is wrong with oversampling?
Yes, I am very satisfied already with PCM2705, but they all have worse specs than the PCM2702 that was used in the AlienDAC, and it is not available anymore.
Plus, the PCM1792 would give balanced outputs natively.
Don't know about today (because I didn't check), but few years ago I was still able to buy TDA1543 (and TDA1543A) in local shop in my country for 2 Euros/piece. Chip have very bad spec, but on other hand good sound. Only few components are needed (passive IV) for complete DAC. It is working with PCM270x I2S signal as input without problems. PCM270x is 16/44.1 USB audio device, not 24-bit.

Direction from your first post is OK, but this I will not advise to anybody, because it is much more complicated way, with possibility that final result will be worst than simple TDA1543 solution.

I build small USB bus powered board with PCM2707, that is used as USB/I2S bridge, and can be connected to any external DAC device (with I2S input) that I have.
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Old 18th January 2013, 04:33 PM   #13
billyk is offline billyk  United States
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Wolfson WM8524 I am by no means an expert on this but have used this chip in combination with a PCM2707.
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