DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 170 - diyAudio
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Old 24th April 2012, 08:22 AM   #1691
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I have a quick questions for those who bought only the pcb. Bottom left corner shows 10k R, while it's 100k on the scheme I've got from supplier. What value should I use?
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Old 24th April 2012, 10:23 AM   #1692
billo44 is offline billo44  United Kingdom
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Your PCB hyperlink seems to be a picture of a different board to the pcb discussed here.
I'm no expert but it has different chips in different places.
Also your board has an USB input....

Bill

Last edited by billo44; 24th April 2012 at 10:28 AM.
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Old 24th April 2012, 10:30 AM   #1693
VT67 is offline VT67  Belgium
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Indeed, we are talking about a different board here.
Picture shows the same setup but for the Mini2496 and there is no resistor at all.

Regards
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Old 24th April 2012, 10:49 AM   #1694
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Quote:
Originally Posted by dtses View Post
I have a quick questions for those who bought only the pcb. Bottom left corner shows 10k R, while it's 100k on the scheme I've got from supplier. What value should I use?
This picture is for a board, with USB support. Basically it is the same, but still different.
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Old 24th April 2012, 11:11 AM   #1695
bcmbob is offline bcmbob  United States
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Has anyone determined a preferred spec (part number) for the on-board LEDs ?

Also, C40 and C42 are listed in the upgrade BOM but are not installed in the picture from the Goggle Docs ?????
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Last edited by bcmbob; 24th April 2012 at 11:18 AM.
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Old 24th April 2012, 11:25 AM   #1696
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indeed, the layout is different, the rest is the same, just added usb input (CM102).
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Old 24th April 2012, 12:10 PM   #1697
VT67 is offline VT67  Belgium
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Quote:
Originally Posted by bcmbob View Post
Also, C40 and C42 are listed in the upgrade BOM but are not installed in the picture from the Goggle Docs ?????
They are at the bottom side of the board.
If you look closely you can see the leads sticking out on top of the board

regards
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Last edited by VT67; 24th April 2012 at 12:20 PM.
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Old 24th April 2012, 12:26 PM   #1698
TheGimp is offline TheGimp  United States
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Should a new thread be started for the USB (CM102S) variants of the board?

I've got one on order with the CS8416 + CS4398.

From looking at the schematics it seems to me that there are about five variants of these boards using the CS8416. All use basically the same power supply and output filter with component value variances.

In general, mods to one are applicable to any of the others with the exception of the output DAC having different features (especially the pinout changes for the CS4398 vs AK4393 and AK4396).

I realize the thread was started specifically for the AK4393, but it evolved to encompass the AK4396 as well, so it seems to make sense to include the newer AK4398 boards as well.

What makes sense to me may not agree with the OP, so I am asking before posting more on the AK4398.

Respectfully,

Steven
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Old 24th April 2012, 12:34 PM   #1699
bcmbob is offline bcmbob  United States
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Thanks VT67, Now that you point it out I remember seeing that on some other builds.
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Old 25th April 2012, 09:01 AM   #1700
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Originally Posted by dtses View Post
thanks a lot!
then probably I would use your reg - LM317+BD139 + U6 for A+3.3 part.
I've got the parts for PS finally and curious now, is it safe to omit U6 at all, I mean if I stay with simple shunt from Dario (LM317+BD139+zener) could I directly feed CS8416 A+3.3 bearing in mind voltage peaks during switching on/off the dac?
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