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Looking for a Recommendation for an Old MultiBit DAC that can be Purchased Today
Looking for a Recommendation for an Old MultiBit DAC that can be Purchased Today
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Old 15th February 2019, 06:23 PM   #31
miro1360 is offline miro1360  Europe
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diyinhk is using high quality parts ...
but the AD1862 is obsolete and therefore questionable ... you can buy board without DAC chips
... better if you ask them directly
... if are you looking for 100% originality, you have only one option
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Old 15th February 2019, 06:32 PM   #32
spaceman5 is offline spaceman5  Israel
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really only one?
wow..

In business that would be regarded as market failure..
Or business potential..
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Old 15th February 2019, 06:59 PM   #33
rfbrw is offline rfbrw
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Quote:
Originally Posted by spaceman5 View Post
This is sad..

Another interesting thing is why chip manufacturers don't see the problem, and resurrect the manufacturing old chips.

.
More interesting is why you don't see the problem with you seeing a problem here.
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Old 15th February 2019, 07:07 PM   #34
spaceman5 is offline spaceman5  Israel
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Please explain..
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Old 15th February 2019, 07:44 PM   #35
rfbrw is offline rfbrw
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Quote:
Originally Posted by spaceman5 View Post
Please explain..
How much do you think it will cost to reconstitute, more likely rebuild from scratch, the semiconductor fabs on which these chips were originally built ? A modern process simply won't do. It wouldn't be authentic.
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Old 15th February 2019, 08:27 PM   #36
miro1360 is offline miro1360  Europe
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Anyway you can buy a R2R DAC from other source. They are cheaper but note, most of them are products from electronic scrap. I recommend only DIP packages (because they did not need to be removed by a heatgun). I strictly do not recommend PCM1704 from ebay and other china sources (SMD chips degraded by heat during recycling).
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Old 18th February 2019, 08:27 PM   #37
weissi is offline weissi  Austria
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Recently I purchased 4pcs of PCM58 from aliexpress for only €18. Those seem to have very good specs according to the datasheet. The delivered chips seem to be legit, have the distinctive BB DIP28 case. I'm about to build an evaluation board. Will report the outcome.
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Old 18th February 2019, 08:36 PM   #38
spaceman5 is offline spaceman5  Israel
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Quote:
Originally Posted by weissi View Post
I'm about to build an evaluation board. Will report the outcome.
Will be very interesting to hear your impression after it's built..
Please write..

BTW, will your board be powered from USB, or need an external power supply?
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Old 18th February 2019, 09:21 PM   #39
miklos is online now miklos  Hungary
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You can buy any multi bit DAC , just buy an old CDP.
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Old 20th February 2019, 08:46 AM   #40
ygg-it is offline ygg-it  Italy
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Of course PCM56, K or S selection. Very easy and flexible to implement with few logics. Buy it on ebay.
Superb sound if running in parallel and without oversampling.
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