My ESS Sabre Buffalo DAC - 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 22nd February 2009, 06:21 PM   #1
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Default My ESS Sabre Buffalo DAC

Not wanting to get in the way of the development of the new ESS Dac, and following Russ suggestion, I'll move my progress works on my ESS Sabre Buffalo DAC on this thread.

I started with interconnect diagram of the different Twisted Pear modules on how to build the Buffalo. Here they Counterpoint I/V converter version:
Attached Files
File Type: pdf buffalo_counterpoint_interconnect.pdf (24.9 KB, 347 views)
  Reply With Quote
Old 22nd February 2009, 06:22 PM   #2
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
And the IVY version
Attached Files
File Type: pdf buffalo_ivy_interconnect.pdf (24.0 KB, 218 views)
  Reply With Quote
Old 22nd February 2009, 06:25 PM   #3
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Just completed most of the support PCB for my Buffalo. One LCDPS for the digital supplies, two LCBPS (my own PCB and parts choice) for the upcoming CounterPoint ver2, the digital input PCB with AES/EBU, True 75 ohms BNC and optical SPDIF using the TORX142L (192Khz speed support). The RCA is not mounted because I'll use the USB input card for the forth input into the CS8416 MUX.

There is also the small Simple Reg PCB for the Buffalo analog reference modification. The MUX is all assembled as well as the Buffalo. I just need to complete the USB card and wait for the Counterpoints.
Attached Images
File Type: jpg all.jpg (81.9 KB, 935 views)
  Reply With Quote
Old 22nd February 2009, 06:27 PM   #4
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
I made also a Transfo PCB to receive all three power transformer, one for the digital section, and one for each futur Conterpoint I/V converter (dual mono).

The board has these features:
External Power switch pads, option to turn on the digital section separate or together with the analog section (to keep the analaog section turn on all the time, if desired), fuse holder. The IEC320 AC socket will come from the bottom of the DAC enclosure, ala ML38 style, so AC won't be near the DAC electronic, but close to the front.
The Main Power switch will be under the case, near the front.

The front panel will have a secondary power switch for the digital section only, inputs selector switch, and a few leds (power-On, Lock, etc...)
Attached Images
File Type: jpg transfo pcb_s.jpg (55.5 KB, 836 views)
  Reply With Quote
Old 22nd February 2009, 06:42 PM   #5
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
I'll put the Buffalo into a nice enclosure from www.hifi2000.it that I got from an other project. It is the Galaxy Serie, model 248. I have a nicely machined aluminum front panel to go with it. I used AutoCAD and made sure that all PCB will fit inside. I used this tool also to design the size the transfo PCB. Here the future enclosure PCB location.

Digital inputs, including USB will be in the middle of the rear panel. Single ended and balanced outputs will be at each sides. AC will come from under, near the front.
Attached Images
File Type: jpg enclosure_top view.jpg (58.7 KB, 831 views)
  Reply With Quote
Old 22nd February 2009, 06:46 PM   #6
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
The Buffalo modification Analog supply Simple Reg designed by Russ, will sit on top of the buffalo. Here Russ complete version 2.0 schematic with notes. This is what as used to test mine.
Attached Files
File Type: pdf version 2.0 fast startup_schematic with notes.pdf (13.2 KB, 198 views)
  Reply With Quote
Old 22nd February 2009, 06:50 PM   #7
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Here my version of Simple Reg PCB.
Attached Images
File Type: jpg simple_reg_pcb.jpg (89.2 KB, 841 views)
  Reply With Quote
Old 22nd February 2009, 06:54 PM   #8
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
And the test prototype voltages measurements.
Attached Images
File Type: jpg simple reg_with voltages.jpg (46.1 KB, 890 views)
  Reply With Quote
Old 23rd February 2009, 07:11 PM   #9
diyAudio Member
 
Join Date: Nov 2004
Location: west java
Slurp, when ess sabre will be available
  Reply With Quote
Old 23rd February 2009, 07:30 PM   #10
glt is offline glt  United States
diyAudio Member
 
Join Date: Oct 2004
Quote:
Originally posted by Algar_emi
Here my version of Simple Reg PCB.

Very nice. Are you planning on also driving the clock with this supply?
  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 10:25 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