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Old 21st November 2002, 11:09 AM   #1
Join Date: Dec 2001
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Question Schematic Audio Note DAC-3

Anyone has a schematic of the Audio Note DAC-3?
thanks in advance!
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Old 21st November 2002, 03:49 PM   #2
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I have ! But what do you want to do with it Elso ? I think your Kwak DAC should be better
It's only audio. Member of the non modular PCB design committee
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Old 21st November 2002, 04:08 PM   #3
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Smile Audionote DAC-3 schematic

Hi Jeanpaul,
Great! I sent you a private e-mail.
I wanted to check the powersupply as I am going nuts with the TDA1543. Quite powersupply sensitive!
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Old 22nd November 2002, 07:48 AM   #4
rbroer is offline rbroer  Netherlands
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What supplies did you try yet Elso for the TDA1543 and which did you like best ?

Most recent non-os TDA1543 I fed with LT1086-ADJ,
with a capacitor bypassed LM329 6.9V reference to ADJ giving about 8.15V output voltage. The reference is fed from output with a LM334 current source set for 1~2 mA.
Set up this way, it isolates ADJ as much as possible from whatever the TDA1543 is throwing back at the psu line.

One of the things I still want to try is just feeding it with a bypassed zener/string of LEDs referenced NPN follower.
But maybe you have tried that already and could share your results ?

Rudolf Broertjes
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Old 24th November 2002, 01:04 PM   #5
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Default DAC3

GO BATTERY.!! BTW:Ur chip on the way.

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