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Valve DAC from Linear Audio volume 13
Valve DAC from Linear Audio volume 13
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Old 27th August 2020, 05:20 AM   #771
nautibuoy is offline nautibuoy  United Kingdom
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Hi Agent.5. Both the reclocker and Valve DAC boards have 'Amanero pattern' headers so I just plugged them together, paying attention to orientation/alignment of course. Does that answer your question?
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Old 27th August 2020, 05:22 AM   #772
agent.5 is offline agent.5  United States
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Thanks. It is enough for me to research and get the answer.
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Old 27th August 2020, 05:29 AM   #773
agent.5 is offline agent.5  United States
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Matching the pin outs of the connector, it appears that DSD1 is connected to DSDLA and DSD2 is connected to DSDRA.
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Old 27th August 2020, 05:37 AM   #774
nautibuoy is offline nautibuoy  United Kingdom
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I've attached screengrabs from the schematics (yellow=reclocker, white=Valve DAC). It's slightly confusing because the header numbering is different on the two but if you renumber one or the other it'll all fall into place.

I installed my BBB/reclocker combo under the Valve DAC board, positioned so that the Valve DAC plugs straight onto the reclocker header (you just need to experiment to get the relative heights of the standoffs right). I have a mechanical drawing with the drill holes for both the Valve DAC and BBB stand-off drill holes correctly positioned if that would help?
Attached Images
File Type: jpg Capture2.JPG (46.9 KB, 107 views)
File Type: jpg Capture1.JPG (61.2 KB, 108 views)

Last edited by nautibuoy; 27th August 2020 at 05:43 AM.
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Old 27th August 2020, 05:47 AM   #775
nautibuoy is offline nautibuoy  United Kingdom
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Some pictures might help?

Click the image to open in full size.

Click the image to open in full size.
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Old 27th August 2020, 05:55 AM   #776
agent.5 is offline agent.5  United States
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Thanks. I got it. I am working on something and want to document all the connections.
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Old 27th August 2020, 06:06 AM   #777
nautibuoy is offline nautibuoy  United Kingdom
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Old 27th August 2020, 03:16 PM   #778
nautibuoy is offline nautibuoy  United Kingdom
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The first Valve DAC GB PCB (my spare from the original purchase) is on its way to torb in Finland today.

Also, I've had an enquiry from a potential late arrival GB subscriber - if they follow up on their interest everyone will see a small reduction in the unit costs of the PCBs - I will post an update if it happens.

I've received deposits from everyone (except for one subscriber who made me aware that he's away until early September) so all good. Thanks everyone.

Last edited by nautibuoy; 27th August 2020 at 03:20 PM.
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Old 27th August 2020, 03:25 PM   #779
MarcelvdG is offline MarcelvdG  Netherlands
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Quote:
Originally Posted by nautibuoy View Post
I've attached screengrabs from the schematics (yellow=reclocker, white=Valve DAC). It's slightly confusing because the header numbering is different on the two but if you renumber one or the other it'll all fall into place.

I installed my BBB/reclocker combo under the Valve DAC board, positioned so that the Valve DAC plugs straight onto the reclocker header (you just need to experiment to get the relative heights of the standoffs right). I have a mechanical drawing with the drill holes for both the Valve DAC and BBB stand-off drill holes correctly positioned if that would help?
It looks like I messed up with the DSD64_128 and FS0...FS3 pins. They are grounded now, which doesn't matter when you use the reclocker, but matters when you connect an Amanero Combo384. A workaround is to remove these pins from the header.

According to https://www.amanero.com/drivers/combo384-D.pdf , DSD64_128 is open drain, so grounding it does no harm. That still leaves FS0...FS3.

Maybe I used this datasheet by mistake, which has them all NC: https://www.amanero.com/drivers/combo384-D3.pdf

Last edited by MarcelvdG; 27th August 2020 at 03:38 PM.
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Old 27th August 2020, 03:49 PM   #780
nautibuoy is offline nautibuoy  United Kingdom
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Thanks Marcel, I was going to ask you about that...

Can you add the info to post #1 in case someone uses an Amanero.

Ray
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