Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Any project with PCM1704
Any project with PCM1704
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 26th May 2019, 04:00 PM   #61
kenta16807 is offline kenta16807  Sweden
diyAudio Member
 
Join Date: Sep 2005
...Thinking about it some more...the drift 'problem' is for the SE version.

With duly matched and thermally coupled FET's it shouldn't be a problem.

...then again, I haven't built it
  Reply With Quote
Old 28th May 2019, 05:33 PM   #62
phongnavy is offline phongnavy  Viet Nam
diyAudio Member
 
Join Date: Feb 2014
Location: HN
Default Reply for method

Quote:
Originally Posted by Alchamist View Post
Hi,

I have 4 PCM1704U-J and JLSound I2SoverUSB board.
I2SoverUSB - I2S over USB Audio

My plan is make a reference DAC which Non-Oversampling, full balanced , XLR and SE two type outputs.

First this circuit base from pavouk.org then returned to balanced type.Can it useable with this way, what is your opinion about circuit? According to this circuit could you recommend a reference I/V Converter, LP filter output? It could be discrete design maybe a transformer. Or these OPA627 and OPA2134P output acceptable for a reference grade?

Also i'm not sure how can i convert XLR outputs to SE outputs, what is best methods for that?
You can try my schematic, this is good method for you!
Attached Images
File Type: jpg 6B159DA0-8028-4571-B257-58D4E5DDD56E.jpg (581.1 KB, 77 views)
  Reply With Quote
Old 2nd June 2019, 08:51 AM   #63
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
The JL Sound works as claimed.

This is not a DAC.
This is a measurement fixture to match (a batch of) PCM1704's.
So only one channel on IC test socket, and opamp IV.


Patrick

.
Attached Images
File Type: jpg 190601 PCM1704 Test Jig 1.JPG (351.6 KB, 50 views)
File Type: jpg 190601 PCM1704 Test Jig 2.JPG (255.3 KB, 51 views)
__________________
xen-audio.com
  Reply With Quote

Reply


Any project with PCM1704Hide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
DSD with PCM1704 Lupulroz Musicaltech 14 22nd February 2019 09:54 AM
WTB: PCM1704 blmn Swap Meet 4 9th March 2016 08:02 PM
WTB: PCM1704 * 2 gentlevoice Swap Meet 0 22nd May 2014 05:16 AM
I/V for PCM1704 merlin el mago Digital Line Level 2 14th January 2013 11:38 AM
non OS pcm1704 hugobors Digital Source 12 1st March 2006 09:07 PM


New To Site? Need Help?

All times are GMT. The time now is 12:35 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki