4 x TDA1543 parallel dac schematic - diyAudio
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Old 17th April 2010, 05:55 PM   #1
noyan is offline noyan  Turkey
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Default 4 x TDA1543 parallel dac schematic

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Old 19th April 2010, 12:15 AM   #2
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Thanks.
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Old 19th April 2010, 10:00 PM   #3
noyan is offline noyan  Turkey
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Default 4xTDA1543 DAC schematic

You are welcome.
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Old 9th August 2011, 08:15 PM   #4
ptempel is offline ptempel  United States
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Can you post a higher resolution (or clearer) version of this? Tried to download and sharpen but many details are still blurry. BTW, I have this DAC (assuming its the Muse one). I found out that the regulator for the DIR9001 chip is 5V on mine as well as this guys:

http://www.head-fi.org/forum/thread/...0#post_7658773

If you have this, then check the small AMS 1117 regulator next to the two small caps by this chip. If it says "AMS1117 5.0" then it has to come out. I'm replacing it with "AMS1117 3.3" which I ordered a few days ago.

Thanks,
Philippe

Last edited by ptempel; 9th August 2011 at 08:23 PM.
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Old 11th August 2011, 12:30 AM   #5
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Its not the same as the Muse one - just had a quick look. A few differences are:
  • Has an SPDIF input transformer (none on Muse)
  • Has 4 way DIP switch (single c/o switch on Muse)
  • Has clock oscillator module (none on Muse)
  • Muse has DIR9001, this has CS841X (can't read)
  • Muse has 74HC00 SPDIF input conditioning, this has none.
  • Has individual digital input resistors on each 1543, Muse has them in common.

<edit> I'm the guy who posted about the 5.0V reg on Headfi
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Last edited by abraxalito; 11th August 2011 at 12:32 AM.
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Old 12th August 2011, 09:12 PM   #6
ptempel is offline ptempel  United States
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Quote:
Originally Posted by abraxalito View Post
Its not the same as the Muse one - just had a quick look. A few differences are:
  • Has an SPDIF input transformer (none on Muse)
  • Has 4 way DIP switch (single c/o switch on Muse)
  • Has clock oscillator module (none on Muse)
  • Muse has DIR9001, this has CS841X (can't read)
  • Muse has 74HC00 SPDIF input conditioning, this has none.
  • Has individual digital input resistors on each 1543, Muse has them in common.

<edit> I'm the guy who posted about the 5.0V reg on Headfi
Ah, ok. So this thread is about a diffeent DAC then. Thanks for the post on headfi. You saved me from destroying the DIR9001 chip.
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Old 13th August 2011, 12:53 AM   #7
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I couldn't bear the thought of so many fellow dac lovers frying their chips. If I wasn't such crazy modder I'd never have found that problem - I was trying to attenuate the I2S lines out of the DIR9001 and wondering why the signals were still so big
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Old 14th August 2011, 09:19 AM   #8
Zoran is offline Zoran  Serbia
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exactly, there is datas in pdf of the dac chip about value of signals for 0 and 1.
and in paralel mode dac deserves bigger heat sinks not just piggy back.
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Old 10th September 2011, 03:32 PM   #9
Nomdi is offline Nomdi  France
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Hi !

I guess this schematics is very close to the 4X TDA 1543 Muse DAC.

Just consider this is for 1 TDA1543 so modify I/V stage resistors and output capacitors. There is also an extra 5V regulator for the 74H00 but its useless, perfect working with the 3.3 V regulator.

Cheers !
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File Type: jpg DAC 1543 MUSE like.jpg (74.5 KB, 587 views)
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Old 10th September 2011, 06:04 PM   #10
DF96 is offline DF96  England
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The circuit in post #1 looks like a DAC board I bought on ebay a few years ago. Not done much with it other than to check that it worked. I found that the variable resistors around the DAC were not quite set right by the supplier.
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