my double PCM1794DAC projet

skygtr · 30th May 2007, 01:03 PM

system diagram

skygtr · 30th May 2007, 01:15 PM

PCB

skygtr · 30th May 2007, 01:26 PM

mute off noise

ch1(up) test BW 0--20MHZ
ch2(down) test BW 0-95KHZ

skygtr · 30th May 2007, 01:28 PM

full=100uv BW 0--95khz

skygtr · 30th May 2007, 01:34 PM

ch1(up) BW 0--20mhz
ch2(down) BW 0--95khz

skygtr · 30th May 2007, 01:38 PM

-80db

skygtr · 30th May 2007, 01:39 PM

-70db

skygtr · 30th May 2007, 01:51 PM

-60db

bou · 30th May 2007, 06:12 PM

Do you have the schematic of your DAC??

galouche · 30th May 2007, 07:28 PM

I'm building a 2xpcm1794 dac too (perhaps 4 x pcm1794) but directly with the I2S output of my CDPRO2. I like your design and the color of your pcb

It seems you've done it in single face the front face is for the separate grounds ? Are you coupling the grounds and how ( capacitors, ... )?

what about your I/V opamp choice ? I have 6 opa827 and I'd like to test them in my DAC ...

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30th May 2007, 06:12 PM	#9
bou diyAudio Member Join Date: Feb 2007 Location: Montreal	Do you have the schematic of your DAC??

30th May 2007, 07:28 PM	#10
galouche diyAudio Member Join Date: Oct 2006	I'm building a 2xpcm1794 dac too (perhaps 4 x pcm1794) but directly with the I2S output of my CDPRO2. I like your design and the color of your pcb It seems you've done it in single face the front face is for the separate grounds ? Are you coupling the grounds and how ( capacitors, ... )? what about your I/V opamp choice ? I have 6 opa827 and I'd like to test them in my DAC ...

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