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Old 30th January 2011, 04:25 PM   #1
Shinja is offline Shinja  Japan
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Default a new multibit DAC chip Arda technologies AT1401

hi

this might be a good news for multibit DAC lover.
a new multibit *not ΔΣ* DAC will be released from Arda technologies.
Arda Technologies - AT1401 Flagship Audio D/A Converter

there is not complete datasheet yet,
but reported it overcomes THD+N and DNR spec of PCM1704...
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Old 31st January 2011, 07:29 PM   #2
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That DA is ridiculously good. External reference, passive iv. I'll go & sign up.
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Old 31st January 2011, 08:10 PM   #3
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Seems to be designed for passive IV conversion, right?
Their ADC also seems to be good...
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Old 1st February 2011, 01:04 AM   #4
Gluca is offline Gluca  Italy
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Me too, signing up ... it looks like we can start with something new ... I do even have a R+xformer+tube I/V ready to roll.
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Old 1st February 2011, 01:43 AM   #5
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I concur with the previous Gentlemen..

It's like all dreams coming true in one shot..

The next (real) shot will be the price?

Ciao, George
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Old 1st February 2011, 01:45 AM   #6
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Certainly looks interesting - very nice to see a differential clock input to the DAC. Wonder why the ADC doesn't have that? ADC A-A filter is b*ggered up, violating Nyquist, but response looks nice otherwise - could have been a very nice part.
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Old 1st February 2011, 02:47 AM   #7
qusp is offline qusp  Australia
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meh, you guys can keep your passive IV. very cool that you can finally play around with a chip that is still in production though. I like the sound of the AT1525 cleanup phaselock loop chip. i'm going to keep an eye on it, because it does sound quite intriguing and a fresh way of doing things.

option for external reference is good, hardly unique though
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Old 1st February 2011, 02:55 AM   #8
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I think its not 'still in production' rather 'still to be produced' as they're inviting input into the feature set.
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Old 1st February 2011, 12:12 PM   #9
qusp is offline qusp  Australia
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not sure why you corrected me there. I realize that, I read the copy, seems they are pretty far along, was just making the distinction between it and the usual NOS of sometimes dubious origins
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Old 1st February 2011, 02:31 PM   #10
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Nice coincidence at some other diy forum, lol:
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Most users ever online was 125 on Sun Jan 30, 2011 2:18 am
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