4 x TDA1543 parallel dac schematic

noyan · 17th April 2010, 05:55 PM

marchel · 19th April 2010, 12:15 AM

Thanks.

noyan · 19th April 2010, 10:00 PM

You are welcome.

ptempel · 08:23 PM

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

abraxalito · 12:32 AM

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

ptempel · 12th August 2011, 09:12 PM

Quote:

Originally Posted by abraxalito

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.

abraxalito · 13th August 2011, 12:53 AM

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

Zoran · 14th August 2011, 09:19 AM

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.

Nomdi · 10th September 2011, 03:32 PM

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 !

DF96 · 10th September 2011, 06:04 PM

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.

19th April 2010, 10:00 PM	#3
noyan diyAudio Member Join Date: May 2004 Location: istanbul	4xTDA1543 DAC schematic You are welcome.

9th August 2011, 08:15 PM	#4
ptempel diyAudio Member Join Date: Jul 2008	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.

11th August 2011, 12:30 AM	#5
abraxalito diyAudio Member Join Date: Sep 2007 Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though... Blog Entries: 46	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 __________________ I think ideas are what you want to get rid of. I don't really like songs with ideas. - Leonard Cohen Last edited by abraxalito; 11th August 2011 at 12:32 AM.

13th August 2011, 12:53 AM	#7
abraxalito diyAudio Member Join Date: Sep 2007 Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though... Blog Entries: 46	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 __________________ I think ideas are what you want to get rid of. I don't really like songs with ideas. - Leonard Cohen

14th August 2011, 09:19 AM	#8
Zoran diyAudio Member Join Date: Jan 2004 Location: Belgrade	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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17th April 2010, 05:55 PM	#1
noyan diyAudio Member Join Date: May 2004 Location: istanbul	4 x TDA1543 parallel dac schematic

19th April 2010, 12:15 AM	#2
marchel diyAudio Member Join Date: Nov 2007	Thanks.

10th September 2011, 06:04 PM	#10
DF96 diyAudio Member Join Date: May 2007	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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