AD-DA Converter

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ast8346
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AD-DA Converter

Post by ast8346 »

Hello,

My name is Anton, at the moment I am a student on the engineering course at the Glyndwr University. For my third and the last year I am designing an Analogue-to-Digital and Digital-to-Analogue (AD-DA) Converter.
I will use ES9018k2M and ES9112 chips for data conversion and XMOS-U8A-64 BGA as a microcontroller generating I2C and I2S protocols. I will have digital USB Input\Output, Analogue XLR Input and Analogue RCA Output. It should work with 32 bit \384 kHz audio in stereo mode of operation.

I would like to share my schematics and design files with you (developed in Eagle PCB design software). I hope to hear some feedback and perhaps some suggestions for further improvement to my design.

Thank You
Attachments
Bill Of Materials.pdf
Bill of Materials
(262.87 KiB) Downloaded 360 times
Bill Of Materials.pdf
Bill of Materials
(262.87 KiB) Downloaded 360 times
Schematic full.jpg
Schematics of the whole project
(1.81 MiB) Not downloaded yet
Schematic full.jpg
Schematics of the whole project
(1.81 MiB) Not downloaded yet
PCB layout full.jpg
PCB layout of the whole project
(1.07 MiB) Not downloaded yet
PCB layout full.jpg
PCB layout of the whole project
(1.07 MiB) Not downloaded yet
Last edited by ast8346 on Fri Aug 14, 2015 3:14 pm, edited 4 times in total.


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Post by Guest »

Have a look at U16 SLICEKIT design files and see how that is done. You can find the design files from the following link:

https://www.xmos.com/support/xkits/?sub ... 6&secure=1

Hope this helps.
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infiniteimprobability
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Post by infiniteimprobability »

Thanks for sharing - looks like a cool project.

Sethu's idea is good one - it's the ideal diode component in particular on the U16 kit which may be of interest..

http://cds.linear.com/docs/en/datasheet/4415fa.pdf
ast8346
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Post by ast8346 »

Ok Thanks
LTC4415 looks perfect
ps. Oh, not really because it is 5v maximum voltage. However I found similar product LTC4353 (or LTC4370) which can support up to 18v. It is also seems to be a good idea to combine current from both power supplies.
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lilltroll
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Post by lilltroll »

You need to import some design rules (a .dru file) from one of the PCB board manufactures and run the rules on your board. I believe that you will find some areas on your board that needs to be adjusted.
ast8346
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Post by ast8346 »

--
Last edited by ast8346 on Wed May 06, 2015 11:41 pm, edited 1 time in total.
ast8346
Active Member
Posts: 39
Joined: Mon Jan 05, 2015 12:58 am

Post by ast8346 »

I have updated schematics and the PCB layout on the first message.
Bill of Materials is also added.
Last edited by ast8346 on Fri Aug 14, 2015 3:15 pm, edited 2 times in total.
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lilltroll
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Post by lilltroll »

He clearance between pads and other copper looks better now!
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