ESS Sabre Reference DAC (8-channel) - Page 98 - 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 7th September 2008, 10:06 AM   #971
diyAudio Member
 
just.sounds's Avatar
 
Join Date: Jan 2006
Location: Weesp
Russ/Brian (or anyone else who knows)

First i want to give you both a thumbs up for the nice projects!!

If i want to use an external wordclock generator (of very good quality) with the buffalo dac what is the best way to do this? Is is just connecting the wires to d1 terminal? I guess the sabre has an internal pll?

And is there a way to turn the reclocking/asrc off? I intend to clock my sound card and the Buffalo that i intend to buy from the same clock master.
  Reply With Quote
Old 7th September 2008, 12:53 PM   #972
NeoY2k is offline NeoY2k  France
diyAudio Member
 
Join Date: Dec 2007
The Sabre doesn't need any external clocking. It has it's own ASRC which is supposed to outperform any other asrc and seems to provide excellent results.
I don't remember that you could switch it off.

Generating a clock from external may be useless and degrade performance.

You may want to use an SPDIF receiver with wordclock input. Check WM8804. After all, if you have no jitter at the input, given you choose a clock for the Sabre which is a multiple of the frequency you'll use, the ASRC will simply pass words...

I'm a bit skeptical, despite I work in pro audio where we nearly always use a master clock to clock everything. I noticed several A/D and D/A working best without it.
  Reply With Quote
Old 7th September 2008, 05:42 PM   #973
NeoY2k is offline NeoY2k  France
diyAudio Member
 
Join Date: Dec 2007
Headache routing the Sabre...
It has been very well though anyway... But each time I do some "serious" routing I end up half mad...

Things are going on. May I soon post a topic to request your advice on my routing, to get the best out of it? I go through the expense of 4 layers to look if performances can go a little bit further, so if I mess the layout... xD

All caps Oscons, c0g/np0 (I'm designing for studio and live events so I try to escape any microphonic effect).

Big ugly FairRite SMT beads (big, ugly, but 6.2 mOhms at DC. Is it usefull... I don't know :/ but as I want to give a try at Jung super regulators, I try to keep line impedance as low as possible).

Vsense and Ground sense on each power line: Avvcr, Avccl, Avddl, Avddr, Dvdd, Dvcc, Vclock.

No onboard PIC, nothing else in fact... Just what is needed for the chip and headers all around for everything.

The point is good layout, to try it with I/V stages, input stages, power stages... Heavy prototyping ^^

There's an oscilloscope (digital) with the screen broken but VGA port on ebay, 500Mhz 500Ms/s... It may help me (my "old" tektronix being half dead...).

Well nobody cares, sorry, I said I went half mad when routing xD
  Reply With Quote
Old 8th September 2008, 09:41 AM   #974
matejS is offline matejS  Slovenia
diyAudio Member
 
Join Date: May 2007
Hi,

does anybody knows what is digital (3.3V, 1.2V) current consumption of ESS Sabre Reference DAC? I haven't found it anywhere? :S

Thanks,
Matej
  Reply With Quote
Old 8th September 2008, 02:09 PM   #975
diyAudio Member
 
Join Date: Dec 2005
Location: Zwolle
Quote:
Originally posted by NeoY2k
Headache routing the Sabre...

Well nobody cares, sorry, I said I went half mad when routing xD

Well, only one half went mad. The other half can still work on the routing.
  Reply With Quote
Old 10th September 2008, 08:22 AM   #976
Zoran is online now Zoran  Serbia
diyAudio Member
 
Join Date: Jan 2004
Location: Belgrade
Hi
thanks for good thread...
*
I have one Q:
*
Can Sabre ES9008 dac, operate in stand-alone mode
without microcontroler supervising?
*
I somehow not find that in the datas?..
thanks
__________________
###
  Reply With Quote
Old 10th September 2008, 02:09 PM   #977
NeoY2k is offline NeoY2k  France
diyAudio Member
 
Join Date: Dec 2007
No it can't.
  Reply With Quote
Old 10th September 2008, 03:40 PM   #978
diyAudio Member
 
Join Date: Feb 2004
Location: Zinzinnati
123Chris,

Well yes it can if you want to live with the defaults. As I remember in that case using it this way will only present a problem with the zero mute issue which people are talking about.

Look at the data sheet and if you can live with the defaults then it will work for you. Of course this means SPDIF is out. But you could hook up USB via say a PCM2706/7 or use a Crystal/Cirrus SPDIF or do an I2S thingy.

Thanks
Gordon
__________________
J. Gordon Rankin
Wavelength Audio, ltd.
  Reply With Quote
Old 10th September 2008, 08:38 PM   #979
Zoran is online now Zoran  Serbia
diyAudio Member
 
Join Date: Jan 2004
Location: Belgrade
i was read the defoult states...
it is maybe acceptable?
or not?
__________________
###
  Reply With Quote
Old 11th September 2008, 07:28 AM   #980
Zoran is online now Zoran  Serbia
diyAudio Member
 
Join Date: Jan 2004
Location: Belgrade
In factory setings,
All 8 DACs are in phase,
and phisical pins are for each DAC output are balanced (+i_out, -i_out)...
*
Is that point that CHIP is in MONO MODE
factory preseted?
*
thanks
__________________
###
  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



New To Site? Need Help?

All times are GMT. The time now is 07:22 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