Anybody using the new ESS Vout DAC (ES9022)? - Page 58 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 8th March 2013, 04:49 PM   #571
diyAudio Member
 
Join Date: Aug 2010
It's a Sennheiser HD480 classic (100Ohm). On Monday i'll test with Sennheiser HD650 and compare with electrostatic phones from Sennheiser with HEAD acoustics PEQ V with PVA IV.3 (it's a bit unfair ).

Best regards, Daniel
  Reply With Quote
Old 8th March 2013, 05:05 PM   #572
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
You can also use the ES9022 to drive a 100~200 ohm phone at normal or low listening level.
But it won't drive a 32ohm Grado or an AK701.
It will still make sound, but I would not call it music.

Else why do I need to bother with the DAO SE .....


Patrick
__________________
xen-audio.com
  Reply With Quote
Old 8th March 2013, 05:05 PM   #573
diyAudio Member
 
Join Date: Feb 2011
Location: Madison, Wisconsin USA
Default Headphones vs V

I'll ask the stupid question, will the output of this FET stage {into headphones} increase with V? More slam? Daniel may still be running 9Vx2... yet.

I find that on "hot" recordings I have to turn down the digital volume on ES9023 or it clips [even at 3.6V with 100K to ground on pin#6]. After that it's a wonderful DAC chip for the price! I am anxious to try the filter buffer, I have one filter 90% done in a AC wiring box [just the filter] to experiment with in front of other gear I own, and after some DACS, obviously.

Quote:
Originally Posted by curryman View Post
It's a Sennheiser HD480 classic (100Ohm). On Monday i'll test with Sennheiser HD650 and compare with electrostatic phones from Sennheiser with HEAD acoustics PEQ V with PVA IV.3 (it's a bit unfair ).

Best regards, Daniel
  Reply With Quote
Old 8th March 2013, 05:08 PM   #574
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
No. Follower has no gain.


Patrick
__________________
xen-audio.com
  Reply With Quote
Old 13th March 2013, 03:02 PM   #575
diyskat is offline diyskat  Australia
diyAudio Member
 
Join Date: Nov 2012
I wonder if anyone with access to proper measurement equipment could run and publish some performance measurements for Daniel's board (THD+N, IMD, DNR etc.) ?
  Reply With Quote
Old 13th March 2013, 08:52 PM   #576
diyAudio Member
 
Join Date: Aug 2010
Quote:
Originally Posted by diyskat View Post
I wonder if anyone with access to proper measurement equipment could run and publish some performance measurements for Daniel's board (THD+N, IMD, DNR etc.) ?
That would indeed be quite interesting However the first betatester just received their proto-boards and it may take some time until they sourced the components and soldered the boards.

I already did some first measurements with my build but did not save the graphs (Arta Demo -> only screenshots). With my RME DIGI 96/8 PAD I measured a THD+N around 0.0058 (-103dB) with 96kHz I2S Input (not U.Fl but pinheader) from miniSTREAMER (TE7022) *. Hard to interpret though since there are too many variables. I don't have a low THD generator at hand to test the ADC of the RME card. In loopback (incl. soundcards DAC) THD is (only) slightly better.

Best regards, Daniel

*There might also be some potential to improve the miniSTREAMER or asynchronous USB solutions might also be better
  Reply With Quote
Old 14th March 2013, 12:09 AM   #577
diyskat is offline diyskat  Australia
diyAudio Member
 
Join Date: Nov 2012
Thanks Daniel. It does look promising. I would still love to see someone run a similar testing methodology like nwavguy did for the ODAC. I know it is a long shot to ask as it would require time and access to a professional grade equipment. If your BOM is finalized and replicable, the test results could provide a good indication of what we can practically achieve with the board.

BTW, are you planning to give this specific board a code name?

I think I'm going to get one piece to try out. Just worried about replicating that ES9023 soldering feat in your photo.
  Reply With Quote
Old 2nd April 2013, 12:31 PM   #578
diyAudio Member
 
Join Date: Jul 2010
Hi Curryman,

I arrived here from your thread over in the mini DSP forum.

Where are you at with this board? sound like just what I'm after to use with the new minisharc board and then out to my hypex modules.

Stefan
  Reply With Quote
Old 2nd April 2013, 03:03 PM   #579
diyAudio Member
 
Join Date: Feb 2011
Location: Madison, Wisconsin USA
Orangeart,

the build-thread you seek is at:

Build thread for ES9023 + JG Buffer boards (betatest)
  Reply With Quote
Old 17th August 2013, 10:00 AM   #580
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
I have been asked by PM whether the 9022 as I posted here can be used with the Amanero.

The ES9022 module I designed has a low-jitter XO next to it, as it should be.
For the likes of QA550, the XO frequency is divided down 4x to also drive the dsPIC.
So there is no synchronization problems between the two, and the DAC takes the clock directly from the XO.
This is our preferred solution.

The Amanero has dual clocks of different frequencies which are switchable according to the music.
It then outputs this clock signal also to the DAC. But the clock signal does seem to go through the MCU.

To use this with the ES9022, the 9022 either has to received thre MCLK from the MCU.
Or alternatively it has to use a say 50MHz XO and then do asynchronous clocking.
None of the above I consider the ideal solution.

The ideal solution would be have 2x XO next to the DAC.
Select them with a logic line from the MCU, and output the XO to both the DAC and the MCU.
This solution requires different hardware, and hence cannot be done as a stand-alone solution.

If you have an Amanero, and want to use the ES9022, the easiest way would be to use the Amanero to drive the MCLK of the DAC.
All you need then is a SOIC16 to DIP16 adaptor board and some P2P wiring.
Try this for yourself first.


Patrick
__________________
xen-audio.com
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Balanced jfet buffer for Vout DAC? jonners Solid State 7 22nd October 2010 07:57 AM
where to connect + wire for Vout? jarthel Power Supplies 2 27th March 2007 04:49 AM
Advice wanted - regulated PSU for Vin 42 V / Vout 25-40 V Groundloops Power Supplies 14 16th February 2007 01:13 PM
help in adjusting Vout in the power supply of the "Brute force in a line stage" by Er jarthel Tubes / Valves 9 30th May 2006 07:47 AM


New To Site? Need Help?

All times are GMT. The time now is 08:42 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2