WeiTone DeCode 4.0.1 - DAC Board (Dual ES9018 + Cyclone III FPGA) - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, 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
Thread Tools Search this Thread
Old 23rd July 2014, 04:40 PM   #1
NuTron is offline NuTron  Switzerland
diyAudio Member
Join Date: May 2014
Default WeiTone DeCode 4.0.1 - DAC Board (Dual ES9018 + Cyclone III FPGA)

Hi everyone
I found an interesting design of a dual ES9018 DAC. Unfortunately I couldn't get much information about the Board. Maybe take a minute to get a look:


晚来的双并ES9018续_第二板 - Powered by Discuz!

Click the image to open in full size.

I tried to get in contact with the seller, who also claims to be the designer. Although we couldn't realy communicate (I don't speak chinese, and google translate is a pain), he convinced me to be involved in the engineering process.

My first thought on this was; could the ESS Chips maybe be feed by a synchronous master clock from the Cyclone FPGA? There is a discussion on this forum and as far as I know Weiss used a Dice chip to implement a synchronous master clock in their 202.

I asked him about this, but I think there were too many missunderstandings, so I didn't get a satisfying answer... I know, without any detailed insights, one can probably only speculate, but what do you think? Does it make sense, that a Cyclone FPGA is used to generate a synchronous master clock?
  Reply With Quote
Old 24th July 2014, 11:17 AM   #2
NuTron is offline NuTron  Switzerland
diyAudio Member
Join Date: May 2014
Just a small update. A closer look revealed, that indeed the MCLK is feed by the FPGA. Still I can't figure, if the master clock is synchronized with the bit clock (an exact multiple of it). I'll try to get in touch with WeiTone and ask again ... But anyway, what do you think of the board, is it worth a try?
Attached Images
File Type: png fpga_mclk.PNG (388.9 KB, 257 views)
  Reply With Quote
Old 5th August 2014, 07:15 AM   #3
diyAudio Member
Join Date: Aug 2014
Do you know the register address of the ES9018?
The datasheet says REG#0 to REG#71. What I understand is the address is from
"0000 0000" (REG 0)
"1000 1110" (REG 71)
But it's not working
  Reply With Quote


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
DAC-END R (ES9018) full assembled board audiodesign Quanghao Audio Design 2283 27th January 2016 03:46 AM
Low cost ES9018 DAC board GB syllable Group Buys 514 12th July 2014 02:23 PM
DAC ES9018 Evaluation Board / No Output ghmfranken Digital Line Level 7 15th January 2013 08:13 PM
FS: NeoY2ks ES9018 DAC board with all the components guglielmope Swap Meet 4 18th December 2012 10:01 AM
ES9018 DUAL MONO DAC PCB syllable Vendor's Bazaar 7 15th September 2012 08:50 AM

New To Site? Need Help?

All times are GMT. The time now is 03:31 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright 1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2