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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
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Old 23rd January 2017, 11:51 PM   #1
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Default 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.

Click the image to open in full size.
ES9018K2MPiPCB
by Ian

Click the image to open in full size.
ES9028Q2MDAC3
by Ian, on Flickr

Click the image to open in full size.
ES9038Q2MRaspberryPiDAC
by Ian, on Flickr

Ian

Last edited by iancanada; 16th March 2018 at 02:33 AM.
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Old 24th January 2017, 09:36 AM   #2
Rod Coleman is offline Rod Coleman  United Kingdom
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Knowing your track record, I imagine that we can expect an interesting solution to the challenge of clocking the 9018 !
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Old 24th January 2017, 04:50 PM   #3
Forane12 is offline Forane12  Bulgaria
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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
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Old 24th January 2017, 11:29 PM   #4
BryceJ is offline BryceJ  Canada
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This looks perfect! I am look forward to this very much.

Cheers!
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Old 24th January 2017, 11:42 PM   #5
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Quote:
Originally Posted by Nikola Krivorov View Post
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
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Old 24th January 2017, 11:42 PM   #6
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Quote:
Originally Posted by Rod Coleman View Post
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 View Post
This looks perfect! I am look forward to this very much.

Cheers!
Thanks,

Ian
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Old 25th January 2017, 01:00 AM   #7
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Default ES9018K2M DSD/I2S DAC HAT block diagram

ES9018K2M DSD/I2S DAC HAT block diagram

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BlockDiagram
by Ian
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Old 25th January 2017, 04:02 AM   #8
Greg Erskine is offline Greg Erskine  Australia
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Hi Ian,

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

regards
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Old 25th January 2017, 09:16 PM   #9
iancanada is offline iancanada  Canada
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ES9018K2M, ES9028Q2M, 9038Q2M DSD/I2S DAC HATs for Raspberry Pi
Quote:
Originally Posted by Greg Erskine View Post
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
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Old 28th January 2017, 01:42 AM   #10
wizardofoz is offline wizardofoz  Singapore
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Ian you're a star...looking forward to this one too
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