ackoDAC based on ES9018 - Page 7 - 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 17th October 2009, 05:50 PM   #61
jkeny is offline jkeny  Ireland
Banned
 
Join Date: Feb 2007
Location: Dublin
Quote:
Originally Posted by tritosine View Post
The Sabre is one extreme to me. WAAAAY different than what others do BTW. And I wont go there , no patent infringement is in sight on my behalf.
What you sayin', tritosine, is it the same as other DACs with a text book approach or waaaay different, I'm confused what you mean
  Reply With Quote
Old 17th October 2009, 06:08 PM   #62
diyAudio Member
 
Join Date: Aug 2008
both You know this is a very mixed IC (ASRC included),
...and this Q is difficult to answer. For 88.2 , 96k material it might be as good as it gets, but im not so sure about 44.1 , nor DSD.
We will see once there will be Sabre32's with DSP front end. (If they subscribe to the 'hyperstream' )
Until then, I recommend reading this:
Page Title

Last edited by tritosine; 17th October 2009 at 06:11 PM.
  Reply With Quote
Old 17th October 2009, 06:16 PM   #63
jkeny is offline jkeny  Ireland
Banned
 
Join Date: Feb 2007
Location: Dublin
I'll leave it at that - this is going nowhere & only hijacking Acko's thread.
  Reply With Quote
Old 17th October 2009, 06:32 PM   #64
diyAudio Member
 
Join Date: Aug 2008
There s not much to improve upon sabre as it is (ASRC stuff aside) . So I am too interesed if someone has something in mind. Read that article for different perspective. I wont hijack either anymore
  Reply With Quote
Old 17th October 2009, 09:46 PM   #65
acko is offline acko  Australia
diyAudio Member
 
Join Date: Jan 2008
Location: Sydney, Australia
Thanks guys, your points are well taken.

I am doing this all for fun and sharing it so contributions will make it more interesting. Yes, Jkeny you have done you your share in this project and it I will offer a free bare board (+ free shipping) to you once ready. How about that for carrot

Yes, it is not the pcb costs that will matter. I could flog it of to china and get it for 2 a penny but at the end of the day the sabre chips and high end crystals etc dominate pricing.

Ok then, I will have to get back to rest of you all. Initial batch of boards have now all 'sold' out. I will get it touch with those who have contacted me.

Regards, acko

Last edited by acko; 17th October 2009 at 09:49 PM.
  Reply With Quote
Old 17th October 2009, 10:40 PM   #66
jkeny is offline jkeny  Ireland
Banned
 
Join Date: Feb 2007
Location: Dublin
Quote:
Originally Posted by acko View Post
Thanks guys, your points are well taken.

I am doing this all for fun and sharing it so contributions will make it more interesting. Yes, Jkeny you have done you your share in this project and it I will offer a free bare board (+ free shipping) to you once ready. How about that for carrot
That's very kind of you acko, I was not expecting that - I was only replying to Curly Woods when I made my remark. I'll PM you
Quote:
Yes, it is not the pcb costs that will matter. I could flog it of to china and get it for 2 a penny but at the end of the day the sabre chips and high end crystals etc dominate pricing.
That's why I wanted to use the lower price Crystek clock with a good PS ( see Jocko's low noise board on diyhif.org) - it can perform as good as some of the "audiophile" clocks mentioned. Remember with any low jitter clock you are going to need a superlative PS to realise anything like the jitter figures quoted for the clock (this is the fact that the clock specs don't reveal)
  Reply With Quote
Old 10th November 2009, 04:44 AM   #67
diyAudio Member
 
Joe Rasmussen's Avatar
 
Join Date: Jan 2003
Location: Sydney, Australia
Send a message via MSN to Joe Rasmussen
Hi Guys

Oppo Digital has just announced the SE version (add USD $400 over the standard model) of their Blu-Ray player. The SE improvements are purely on the audio side, going from using CS4398 Stereo DAC and CS4382 Multi-Ch DAC to ESS ES9016 (paralleling the outputs) Stereo and ES9006 on the Multi-Ch.

I would love to see PDF data sheets and the suggested application notes they usually include - how is the ES9016 paralleling up done, I versus V modes etc.

Does any have these or know where they can be downloaded?

Cheers.

Joe R.

PS: Acko, I'm in Sydney too.
__________________
The "Elsinore Project" DIY Speaker System
Custom Analogue Audio - we also support and promote non-profit DIY
  Reply With Quote
Old 27th November 2009, 09:04 AM   #68
UKPD is offline UKPD  United Kingdom
diyAudio Member
 
Join Date: Nov 2007
Location: Sheffield
Any updates?

Peter.
  Reply With Quote
Old 27th November 2009, 11:26 PM   #69
diyAudio Member
 
Joe Rasmussen's Avatar
 
Join Date: Jan 2003
Location: Sydney, Australia
Send a message via MSN to Joe Rasmussen
Quote:
Originally Posted by UKPD View Post
Any updates?

Peter.
Well, it seems that NDA provisions by ESS means you cannot reveal the datasheet and also you cannot even reveal your own schematic of how you employed (implementation) their ESS DAC?

For example, the SE version of the Oppo Blu-Ray uses the ESS DAC (ES9016) in the dedicated stereo outputs, is it in voltage mode or current mode? Is it OK by the ESS NDA to let us know how the DAC is put into either mode and which, if any, there is a default mode? I am getting an SE within a few weeks and perhaps I will be able to answer which mode it is in as I gather it can be put into one or the other? Or is it possible to have both and if the Oppo uses voltage (is this an inbuilt opamp I/V converter?) can the current out still be used and a separate I/V stage be built and go to other RCA out while still maintaining Oppo's RCA outs.

I think what ESS is doing does not make sense to me. It only builds up frustrations.

ESS should learn how to deal in good faith, even if an NDA is required it should have reasonable lattitude. Why should the ESS user be prevented to reveal his work by way of showing his schematic, whose property is that? I would never sign an NDA that would prevent me from sharing something that is mine to share. No NDA I have ever seen has prevented any manufaturer to show a schematic, not even a block diagram? Also, I wonder if this was thought up by a tech guy? I think not, rather a stuff shirt with a lawyer standing by his side.

Who does ESS think they are? Microsoft?

But seriously, what does the NDA allow and what does it not?

Joe R.
__________________
The "Elsinore Project" DIY Speaker System
Custom Analogue Audio - we also support and promote non-profit DIY

Last edited by Joe Rasmussen; 27th November 2009 at 11:53 PM.
  Reply With Quote
Old 27th November 2009, 11:43 PM   #70
diyAudio Member
 
Joe Rasmussen's Avatar
 
Join Date: Jan 2003
Location: Sydney, Australia
Send a message via MSN to Joe Rasmussen
Quote:
Originally Posted by acko View Post
Output can be configured as Vout for easy interface but for best results Iout is recommended and this requires a suitable IV stage
Does the I/V outs have an offset voltage? Like 2.4V? Or is it zero volt. If zero I am very excited... do I have an I/V converter that sings...

Joe R.
__________________
The "Elsinore Project" DIY Speaker System
Custom Analogue Audio - we also support and promote non-profit DIY
  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
WM8816 based pre-amp panson_hk Chip Amps 13 22nd May 2009 03:16 PM
DIY ESL III (based on an ER Audio Kit) jasonlky Planars & Exotics 7 23rd January 2008 08:09 AM
UCD based amp oldmaelstrom2 Class D 3 27th June 2007 11:10 AM


New To Site? Need Help?

All times are GMT. The time now is 01:00 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