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Old 23rd April 2014, 06:03 AM   #1
acko is offline acko  Australia
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Default ADC using ES9102/9112

QUOTE=more10;3898320]Hi, your AKV-8 is very interesting. Please PM your price.

I would be very interested in ESS ES9102 kits as well.[/QUOTE]

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Second that ADC interest.

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We may have to do another project for this. There are evaluation boards from ESS for you to experiment or are you looking from something more customized?

PS. Will respond to your PM soon, thanks

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I am looking for something which is affordable :-). I like the ESS since it has biquad filter which can be used for RIAA. Other cheaper ADCs could be used for line level inputs.
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So, it is like a "Digital Vinyl Transport" that can be hooked up to the 9018 DAC?
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Old 23rd April 2014, 06:33 AM   #2
TNT is offline TNT  Sweden
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My intention is to build a ADC for recording with michrophones. 2 channels (or 4?). The Ian clock / buffer is a given. At least a very good clock - the buffer might not be needed. USB out (or ethernet/TCP/IP). Or SSD.

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Old 23rd April 2014, 06:37 AM   #3
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seems like a very good , maybe state of the art ADC compared to the existing ones on the market ... but how could it be properly interfaced to a PC? I would love to rip my vinil collection with this ADC

I also remember the CM6631A chip has 2 x I2S inputs (beside I2S outputs) so I think it would be a very cheap solution to integrate this ADC through an USB interface ASYNCHRONOUSLY and supporting all sample rates up to 384 khz;
would be a nice project ...
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Old 23rd April 2014, 06:54 AM   #4
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I'd be interested in an ADC as I've been waiting forever for one from Twisted Pear.
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Old 23rd April 2014, 07:12 AM   #5
acko is offline acko  Australia
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Thanks Guys! Keep going ....
I am awaiting more information from ESS on chips and will advise.
Like I have indicated earlier, mostly planned as 'Digital Vinyl' or Analog input Transport with I2S outputs for direct connection to DAC. Other outputs like USB link to PC etc may require some expert help
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Old 23rd April 2014, 07:19 AM   #6
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SPDIF/AES outputs would be nice.
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Old 23rd April 2014, 07:27 AM   #7
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Guys may be interested in following opc's The Wire thread especially with a close look at the right hand side of the first pic in this post - "The Wire" Official Boards for All Projects Available Here! BAL-BAL, SE-SE, LPUHP
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Old 23rd April 2014, 07:29 AM   #8
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Originally Posted by TNT View Post
My intention is to build a ADC for recording with michrophones. 2 channels (or 4?). The Ian clock / buffer is a given. At least a very good clock - the buffer might not be needed. USB out (or ethernet/TCP/IP). Or SSD.

//
Jitter on the ADC data transfer is a non-issue. As long as the data is transferred bit perfect the only issue is that of the sampling clock jitter, reclocking the data achieves nothing.
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Old 23rd April 2014, 07:31 AM   #9
more10 is offline more10  Sweden
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The perfect hardware for an I2S to USB or Ethernet is the Raspberry PI. This is a very good DIY project!

The Raspberry PI with Arch ARM Linux will boot in a few seconds thanks to systemd.
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Old 23rd April 2014, 07:40 AM   #10
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The perfect hardware for an I2S to USB or Ethernet is the Raspberry PI. This is a very good DIY project!

The Raspberry PI with Arch ARM Linux will boot in a few seconds thanks to systemd.
That didn't occur to me. I have an RPi here gathering dust.
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