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Hello,
I'm new to this forum searching for some advices from you guys. I want to build a DAC with PCM1794A and/or PCM1792A chips (doesn't matter which one because the control interface it's not a problem here) using RAKK LL1674 board as passive I/V stage.
Still, I do have some issues regarding LL1674 connections to PCM1794 DACs configured in Mono Mode with the outputs balanced (using XLRs). I found some infos here: http://www.raleighaudio.com/passive_output.htm but the output is single ended and I'm not so sure it will work in Mono mode. Based on all the infos that I've had, I made a schematic (see attached photo) which reflects a possible connection between PCM1794 and Lundahl's LL1674 but I'm not confident that's the best possible connection.
Thank you in advance for your time!
Lucifix
Edits: 08/19/08 08/19/08 08/19/08 08/19/08 08/19/08 08/19/08Follow Ups:
The connection illustrated in this post is the one with which we have experience in stereo mode. We have not tried the other two connections without ground connections for the transformer primaries, so I can't comment on the relative merit of the three connections you propose. Let us know your impressions if you try them all.
Kevin Carter
K&K Audio
www.kandkaudio.com
... this is another image with one possible connection between PCM1794 and LL1674:
... and the last one:
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