USB board Mk3 and AYA II revisited (proposal)

Two projects proposal for 2018.

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USB to simultaneous data or I2S converter, series 2

Audial USB interface second release. Now offered as both module and ready made device.

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USB to simultaneous data (or I2S) board

Audial quality USB interface. At one side it connects to PC via USB port, and on the other it outputs “raw” PCM signal, in simultaneous data or I2S form.

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Asynchronous USB to simultaneous data converter board, interest check

Asynchronous USB Audio Class 2.0, galvanic isolation, two oscillators, and reclocked simultaneous data output. With U.FL output connectors it would be adequate companion to AYA II 2014 or DS board, and of course the great possibility to connect PC to Model S MkIII.

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AYA II DS, DIY edition

As announced a few months ago, we have another run of AYA II. This run, marked as DS, includes one update with respect to AYA II 2014: synchronous DEM clocking circuit is now more completely integrated, so it is not optional but integral part of this AYA II project.

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AYA II 2014 DIY edition, second run

As an extension of original AYA II 2014 DIY edition offer, here is the second turn of AYA II 2014 orders.

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AYA II 2014 DIY edition talks

Everything related to AYA II 2014 DIY edition building, parts and possible tweaks can be asked, discussed or shared at this page.

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AYA II 2014 DIY edition interest check

As a result of initiative by several TDA1541A fans at diyaudio.com, AYA II DAC may re-appear in 2014.

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Balanced DAC I2S interface project

The OPA861 based output stage for TDA1541A, as used in the AYA II DAC, was posted here one month ago and, according to feedback, authentic and ambitious DIY spirit is still around. So I am reposting now one old article that was once available at pedjarogic.com.

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OPA861 zero-feedback output stage of AYA II

The output stage of AYA II DAC, released back in 2007, now with details of circuit sitting behind originally posted block diagram. Dare to say, it might be the best I/V circuit published so far.

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