Audio Alchemy DDE v1.1 schematic

aparatusonitus · 21st August 2010, 06:54 AM

I'm looking for an Audio Alchemy DDE v1.1 dac schematic based on CS4303 dac (managed to cannibalise one from an old, not working Philips CDi player), hardwired it to SAA7310 in a working player via I2S, plug in some quad flip-flops after CS4303 to perform 1-bit conversion and opamps based LP filter and it does sound really, really nice. So I'm looking for AA DDE v1.1 sch to see how they implemented CS8412 -> CS4303 as standalone unit...thx in advance.

aparatusonitus · 25th August 2010, 08:35 AM

Anyone?

aparatusonitus · 27th August 2010, 03:18 PM

Hi rubicon,

Thx for the info, I'll do that!

aparatusonitus · 9th May 2011, 09:07 AM

Still looking

SoNic_real_one · 10th May 2011, 04:12 PM

I found only the DAC-20 DDE3:
ALCHEMY DAC-20 DDE 3 Service Manual free download, schematics, eeprom, repair info for electronics

aparatusonitus · 10th May 2011, 04:25 PM

Thanks for replay SoNic, I already have that one ;-)...but the one that really interest me is AA DDE v1.1 with CS4303 so I can use its bitstream outputs directly to FF + passive LP filter, so FF will actually do digital to analog conversion, not CS4303 ;-)

SoNic_real_one · 10:08 PM

Well, data sheet of CS4303 should be enough then, no?
LE: If you find it. I would ask CS for it...

aparatusonitus · 10th May 2011, 10:06 PM

Right, but would like to see is there any reclocking involved in AA and how it's implemented (you see digital is not my cap of tee...)

aparatusonitus · 10th May 2011, 10:27 PM

I've the CS4303 datasheet, and I know how to wire it to CS841x, but in my case, thing are little different...I would like to reclock after CS4303, prior to my "dac" 74AC175 followed by entirely passive LP filter (no active element here to screw up the sound)...all is well documented in the CS4303 evaluation board, named CDB4303, which I don't have btw :-(

SoNic_real_one · 10:39 PM

D flip-flops don't "reclock".
They will skip or repeat samples periodically, based on instantaneous delta F.

21st August 2010, 06:54 AM	#1
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	Audio Alchemy DDE v1.1 schematic I'm looking for an Audio Alchemy DDE v1.1 dac schematic based on CS4303 dac (managed to cannibalise one from an old, not working Philips CDi player), hardwired it to SAA7310 in a working player via I2S, plug in some quad flip-flops after CS4303 to perform 1-bit conversion and opamps based LP filter and it does sound really, really nice. So I'm looking for AA DDE v1.1 sch to see how they implemented CS8412 -> CS4303 as standalone unit...thx in advance. __________________ Non é mai abbastanza...

25th August 2010, 08:35 AM	#2
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	Anyone? __________________ Non é mai abbastanza...

27th August 2010, 03:18 PM	#3
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	Hi rubicon, Thx for the info, I'll do that! __________________ Non é mai abbastanza...

9th May 2011, 09:07 AM	#4
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	Still looking __________________ Non é mai abbastanza...

10th May 2011, 04:25 PM	#6
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	Thanks for replay SoNic, I already have that one ;-)...but the one that really interest me is AA DDE v1.1 with CS4303 so I can use its bitstream outputs directly to FF + passive LP filter, so FF will actually do digital to analog conversion, not CS4303 ;-) __________________ Non é mai abbastanza...


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10th May 2011, 04:12 PM	#5
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	I found only the DAC-20 DDE3: ALCHEMY DAC-20 DDE 3 Service Manual free download, schematics, eeprom, repair info for electronics

10th May 2011, 10:00 PM	#7
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	Well, data sheet of CS4303 should be enough then, no? LE: If you find it. I would ask CS for it... Last edited by SoNic_real_one; 10th May 2011 at 10:08 PM.

10th May 2011, 10:06 PM	#8
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	Right, but would like to see is there any reclocking involved in AA and how it's implemented (you see digital is not my cap of tee...) __________________ Non é mai abbastanza...

10th May 2011, 10:27 PM	#9
aparatusonitus diyAudio Member Join Date: Jan 2004 Location: Split, Croatia	I've the CS4303 datasheet, and I know how to wire it to CS841x, but in my case, thing are little different...I would like to reclock after CS4303, prior to my "dac" 74AC175 followed by entirely passive LP filter (no active element here to screw up the sound)...all is well documented in the CS4303 evaluation board, named CDB4303, which I don't have btw :-( __________________ Non é mai abbastanza...

10th May 2011, 10:36 PM	#10
SoNic_real_one diyAudio Member Join Date: Jan 2008 Location: Virginia	D flip-flops don't "reclock". They will skip or repeat samples periodically, based on instantaneous delta F. Last edited by SoNic_real_one; 10th May 2011 at 10:39 PM.

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