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-   -   ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi (http://www.diyaudio.com/forums/pc-based/302687-es9018k2m-es9028q2m-9038q2m-dsd-i2s-dac-hats-raspberry-pi.html)

iancanada 23rd January 2017 11:51 PM

ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
 
Since I’ve already made Raspberry Pi capable for DSD playback, I think I’ll need a DSD/I2S DAC HAT for it. Few DSD DAC is available for Pi so far, so I’m gonna design something around.

I’ll pick up ES9018K2M first because basically it’s the 2 channel version of ES9018 (2ch vs 8ch), and I've been very happy with ES9018. Both of them have same SABRE32 Reference DAC core, so good sound quality is expected, here are some speciations:

. Industry’s highest performance 32-bit mobile audio DAC with unprecedented dynamic range and ultra low distortion;
. Supports both synchronous and ASRC (asynchronous sample rate converter) modes;
. Unmatched audio clarity free from input clock jitter;
. 127dB DNR -120dB THD+N;
. PCM384KHz/DSD512;
. Mono or stereo output in current or voltage mode based on performance criterion;
. Supports SPDIF, PCM (I2S, LJ 16-32-bit) or DSD input;
. 64-bit accumulator and 32-bit processing. Distortion free volume control;
. I2C based software control;

Prototype PCB is coming very soon.

https://c1.staticflickr.com/1/777/32...eca692ef_h.jpg
ES9018K2MPiPCB
by Ian

https://farm5.staticflickr.com/4788/...a6ca68d4_o.jpg
ES9028Q2MDAC3
by Ian, on Flickr

https://farm5.staticflickr.com/4782/...e63e61f9_o.jpg
ES9038Q2MRaspberryPiDAC
by Ian, on Flickr

Ian

Rod Coleman 24th January 2017 09:36 AM

Knowing your track record, I imagine that we can expect an interesting solution to the challenge of clocking the 9018 !

Forane12 24th January 2017 04:50 PM

Dear Ian,

That sure sounds fantastic, like all of your designs!

But is there a chance to organize the interest list in one of those google spreadsheets, that way it will be easier for anyone to change the number of boards in each position. And it might be easier for you to check which boards are more in demand, I find the current interest list a little too complicated to say the least, whenever I decide to add or subtract something I have to copy all previous posts with the risk to involuntary changing someone's list... And I change my mind often :)

BryceJ 24th January 2017 11:29 PM

This looks perfect! I am look forward to this very much.

Cheers!

iancanada 24th January 2017 11:42 PM

Quote:

Originally Posted by Nikola Krivorov (http://www.diyaudio.com/forums/pc-based/302687-es9018k2m-es9028q2m-9038q2m-dsd-i2s-dac-hats-raspberry-pi-post4963335.html#post4963335)
Dear Ian,

That sure sounds fantastic, like all of your designs!

But is there a chance to organize the interest list in one of those google spreadsheets, that way it will be easier for anyone to change the number of boards in each position. And it might be easier for you to check which boards are more in demand, I find the current interest list a little too complicated to say the least, whenever I decide to add or subtract something I have to copy all previous posts with the risk to involuntary changing someone's list... And I change my mind often :)

Thanks Nikola,

Just let me figure out how to do it :)

Regards,
Ian

iancanada 24th January 2017 11:42 PM

Quote:

Originally Posted by Rod Coleman (http://www.diyaudio.com/forums/pc-based/302687-es9018k2m-es9028q2m-9038q2m-dsd-i2s-dac-hats-raspberry-pi-post4962864.html#post4962864)
Knowing your track record, I imagine that we can expect an interesting solution to the challenge of clocking the 9018 !

Quote:

Originally Posted by BryceJ (http://www.diyaudio.com/forums/pc-based/302687-es9018k2m-es9028q2m-9038q2m-dsd-i2s-dac-hats-raspberry-pi-post4963710.html#post4963710)
This looks perfect! I am look forward to this very much.

Cheers!

Thanks,

Ian

iancanada 25th January 2017 01:00 AM

ES9018K2M DSD/I2S DAC HAT block diagram
 
ES9018K2M DSD/I2S DAC HAT block diagram

https://c1.staticflickr.com/1/375/31...e2cc4269_o.png


BlockDiagram
by Ian

Greg Erskine 25th January 2017 04:02 AM

Hi Ian,

How do you get around the lack of open source firmware and drivers for ESS products?

regards

iancanada 25th January 2017 09:16 PM

Quote:

Originally Posted by Greg Erskine (http://www.diyaudio.com/forums/pc-based/302687-es9018k2m-es9028q2m-9038q2m-dsd-i2s-dac-hats-raspberry-pi-post4963857.html#post4963857)
Hi Ian,

How do you get around the lack of open source firmware and drivers for ESS products?

regards

Hi Greg,

First you have to sign the NDA with ESS to get all datasheets. But I don't think there is any open source driver available for ESS9018. I have a couple of options, but in either way I have to write something by myself.

Regards,
Ian

wizardofoz 28th January 2017 01:42 AM

Ian you're a star...looking forward to this one too


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