ESS Sabre Reference DAC (8-channel) - Page 63

Russ White · 29th April 2008, 02:39 AM

It's not uncommon for a manufacturer to protect early data sheets like this. Not so much because they are secret, but more because they are not finished. What I found strange was that the data sheet was available on their site for quite a while, then disappeared.

4real · 29th April 2008, 05:50 AM

Any spec on performance is already out there anyway, on their own website, downloadable in excel

It probably sais more than the datasheet...

They also provide a free schematic of the ESS website. You could even copy that and have a DAC without the need of a datasheet if you wanted.

A few days ago, this link somewhere on this thread did actually still work, so I'm guessing it still does. If ESS does not want it public I suggest that the link is removed. I'd sign an NDA if I need to.. no problem.

Imho the datasheet does not contain any shocking information that should be hidden from the public, so I guess that Russ is right in saying that it's not public because it's preliminary..

RayCtech · 29th April 2008, 07:23 AM

Hi Dustin,

Where can I find some info on the ESS Sabre Ultra 48pin chip?.
From what I have seen of limited info it appears to be nearly indentical to the ESS Sabre Reference 64pin chip,
but with lower channel count?

Raymond

rossl · 29th April 2008, 09:21 AM

there are several errors on the datasheet. particulary where it lists what the register defaults should be. register 14 and 15 tell the wrong defaults.

NeoY2k · 29th April 2008, 01:08 PM

To people waiting for my board: it will take a bit more time to complete it.

Why?

Just because I have to fix my *&#$ computer.
The new hard drive was in my mailbox this morning, I'm trying to rescue all my data :'(

I'll now stop polluting this thread - but be sure that I'm working on it.
When the projet will be ready - just to check again everything, I'll post a new thread.

Thanks,
Nicolas

4real · 29th April 2008, 01:09 PM

Well, good luck! And make sure to post a link to the new topic here!

Russ White · 29th April 2008, 09:59 PM

OK for those of you who don't mind risking a Denon DVD-1920 and want to get DSD out of it...

Here is how I am doing it:

There are three vias at DBK,DSD1,DSD2. Solder a tiny wire into each via.

I am not sure how I will run these to the panel, but for now just to test the DAC I just used allegator clip jumpers to wires which are installed in the DAC.

It actually sounds very good despite the makeshift wiring! It is definitely much better than the stock DAC, but that would not actually take much.

The DVD-1920 is much easier to modify than the DVD2910, so I would go that route personally.

Cheers!
Russ

Here is a picture of the wires soldered into the whiskers.

Russ White · 29th April 2008, 10:02 PM

Here is the rig in use. Keep in mind this is not by any means a finished project. I just wanted to show that it works.

Russ White · 29th April 2008, 10:46 PM

Interesting side note...

If you take out the useless little analog section at back left corner of the player there is more than enough room for a Buffalo/IVY stack and two power supplies and a couple toroidal trafos.

Sweeeet.

MrMajestic · 30th April 2008, 08:09 AM

Great posts Russ, just what I was looking for

I think i remember reading somehwre in the thread that you tried DVD-Audio out as well. Where did you tap that?

Edit:
Would pin 46,47 and 50 get me PCM output and could I run that to TP SPDIF module?

29th April 2008, 02:39 AM	#621
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	It's not uncommon for a manufacturer to protect early data sheets like this. Not so much because they are secret, but more because they are not finished. What I found strange was that the data sheet was available on their site for quite a while, then disappeared. __________________ Less pulp more juice Twisted Pear Audio.

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29th April 2008, 05:50 AM	#622
4real diyAudio Member Join Date: May 2004 Location: Arnhem	Any spec on performance is already out there anyway, on their own website, downloadable in excel It probably sais more than the datasheet... They also provide a free schematic of the ESS website. You could even copy that and have a DAC without the need of a datasheet if you wanted. A few days ago, this link somewhere on this thread did actually still work, so I'm guessing it still does. If ESS does not want it public I suggest that the link is removed. I'd sign an NDA if I need to.. no problem. Imho the datasheet does not contain any shocking information that should be hidden from the public, so I guess that Russ is right in saying that it's not public because it's preliminary..

29th April 2008, 07:23 AM	#623
RayCtech diyAudio Member Join Date: Sep 2007 Location: Multiple...	Hi Dustin, Where can I find some info on the ESS Sabre Ultra 48pin chip?. From what I have seen of limited info it appears to be nearly indentical to the ESS Sabre Reference 64pin chip, but with lower channel count? Raymond

29th April 2008, 09:21 AM	#624
rossl diyAudio Member Join Date: Nov 2004 Location: Central Ohio	there are several errors on the datasheet. particulary where it lists what the register defaults should be. register 14 and 15 tell the wrong defaults.

29th April 2008, 01:08 PM	#625
NeoY2k diyAudio Member Join Date: Dec 2007	To people waiting for my board: it will take a bit more time to complete it. Why? Just because I have to fix my *&#$ computer. The new hard drive was in my mailbox this morning, I'm trying to rescue all my data :'( I'll now stop polluting this thread - but be sure that I'm working on it. When the projet will be ready - just to check again everything, I'll post a new thread. Thanks, Nicolas

29th April 2008, 01:09 PM	#626
4real diyAudio Member Join Date: May 2004 Location: Arnhem	Well, good luck! And make sure to post a link to the new topic here!

30th April 2008, 08:09 AM	#630
MrMajestic diyAudio Member Join Date: May 2007	Great posts Russ, just what I was looking for I think i remember reading somehwre in the thread that you tried DVD-Audio out as well. Where did you tap that? Edit: Would pin 46,47 and 50 get me PCM output and could I run that to TP SPDIF module?