Pushing the limits of TDA1543 NOS DAC - Page 18 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Audio Sector

Audio Sector Kits & PC boards from AudioSector

Reply
 
Thread Tools Search this Thread
Old 22nd February 2012, 02:26 PM   #171
diyAudio Member
 
uncle_leon's Avatar
 
Join Date: Jun 2007
Location: Czyżeminek, near Łdź
There is no real "alternative" to Black Gate, unfortunately. For me, the "second best" in digital are Sanyo Os-Con or Elna Starget (Stargets being mellower and more pleasant of the two, but slightly less precise).

The PCB looks nice and orderly, but is kinda hard to read without any part names... What is the 14-pin IC on the far left?...
__________________
Studio Zy - natural, hand-crafted components for hi-end audio.
"Dare to be different, and you may stumble upon something amazing."
  Reply With Quote
Old 22nd February 2012, 03:05 PM   #172
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
74ACT86 for splitting DATA for balanced outputs. Sorry, the whole thing posted upside down or flipped, whichever.
  Reply With Quote
Old 26th February 2012, 07:01 PM   #173
diyAudio Member
 
triode_al's Avatar
 
Join Date: May 2004
Location: Westland
Blog Entries: 1
Quote:
Originally Posted by Peter Daniel View Post
I use TOCO toggle switch for source selecting, didn't observe any problems.
Click the image to open in full size.
As to polarity switch, this is how it's implemented (to match my reversed XLR output wiring, for unbalanced signal, it will be the other way)
Hi Peter, I think this is interesting, but I cant find this part. I am looking to get a balanced out to drive a long line (from digital TV to stereo amp). I understand this is to get one chip to reverse the signal in polarity. One TDA1543 gets DATA+ the other DATA- signal.
Do you have a source or ref of it?
albert
__________________
DAC TDA1541 S1; Kondo post-I/V filter; MC30-Super --> two stage RIAA; Pre: SP-6 clone ; F5 ; 300B PP ; ESL 57
  Reply With Quote
Old 1st March 2012, 06:42 PM   #174
diyAudio Member
 
triode_al's Avatar
 
Join Date: May 2004
Location: Westland
Blog Entries: 1
Can it be the 74AC86?
Being a Quad 2-Input Exclusive-OR Gate?
I'm not into logic. So don't know.
__________________
DAC TDA1541 S1; Kondo post-I/V filter; MC30-Super --> two stage RIAA; Pre: SP-6 clone ; F5 ; 300B PP ; ESL 57
  Reply With Quote
Old 3rd March 2012, 10:20 AM   #175
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
What oscons are recommended? SP or the new SEP? Do i have to worry about fakes?
  Reply With Quote
Old 3rd March 2012, 11:34 AM   #176
diyAudio Member
 
abraxalito's Avatar
 
Join Date: Sep 2007
Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
Blog Entries: 98
Send a message via MSN to abraxalito Send a message via Yahoo to abraxalito Send a message via Skype™ to abraxalito
Quote:
Originally Posted by triode_al View Post
Can it be the 74AC86?
Being a Quad 2-Input Exclusive-OR Gate?
The 'AC' series is normal CMOS (i.e. symmetrical) logic levels and the 'ACT' is TTL-compatible logic. Since the source is a CMOS part either should be OK from a technical pov. I don't know if Peter's auditioned one over the other though.

For myself I prefer to use the 'HC' family as it generates much less switching noise. In driving my own TDA1543 DAC I run the part (74HC86) from a TL431 shunt regulator at 2.5V to keep the edges nice and gentle
__________________
It doesn't have to take the form of a conspiracy, rather a consensus... James H Kunstler
  Reply With Quote
Old 3rd March 2012, 02:09 PM   #177
diyAudio Member
 
triode_al's Avatar
 
Join Date: May 2004
Location: Westland
Blog Entries: 1
Thanks abraxalito, this means you use the same schema with the 74HC86 to invert the signal?
__________________
DAC TDA1541 S1; Kondo post-I/V filter; MC30-Super --> two stage RIAA; Pre: SP-6 clone ; F5 ; 300B PP ; ESL 57
  Reply With Quote
Old 3rd March 2012, 02:15 PM   #178
diyAudio Member
 
buzzforb's Avatar
 
Join Date: Oct 2010
Location: Burlington, NC
Abraxalito,
what has come of your tda1543? In you blog, youseeemed to have shelved it?
  Reply With Quote
Old 3rd March 2012, 02:22 PM   #179
diyAudio Member
 
abraxalito's Avatar
 
Join Date: Sep 2007
Location: Hangzhou - Marco Polo's 'most beautiful city'. 700yrs is a long time though...
Blog Entries: 98
Send a message via MSN to abraxalito Send a message via Yahoo to abraxalito Send a message via Skype™ to abraxalito
Its similar, not identical because I have no use for the phase invert switch. I have a switch but its used to check the balance of the two (positive and negative) sides. So in mine there's a 'normal' position and a 'test' position where there should be nothing coming out if all is correctly working This means I'm only using two gates for data, I use the other two to buffer BCK and WS.

@buzzforb - thanks for asking I've graduated up from TDA1543 to TDA1545 now that I have a way to solve the latter's glitchiness. For a long time, 1543 sounded best but just in the last month, 1545 has overtaken it for me. I guess I'll write it up on my blog sometime...
__________________
It doesn't have to take the form of a conspiracy, rather a consensus... James H Kunstler
  Reply With Quote
Old 5th March 2012, 04:05 PM   #180
diyAudio Member
 
Join Date: Jan 2005
Location: Sao Paulo
Hey abraxalito, can you kindly help me how to invert the output of the 74HC86?
Im using it on a Muse 4XTDA43 and I really would like to check the sound dif between the "inverted" and non "inverted" polarity.

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: NOS TDA1543 DAC 2A3SET Swap Meet 0 24th March 2011 07:10 PM
Pushing Aleph P to limits - Passive Tri-amp Alves Pass Labs 4 12th September 2006 01:56 AM
TDA1543 and CS8412 NOS DAC Igla Digital Source 3 7th March 2006 07:27 PM
Nos Tda1543 Dac. IpsilonSound Digital Source 0 4th June 2004 06:25 PM
TDA1543 nos dac question... setmenu Digital Source 13 2nd June 2004 12:03 PM


New To Site? Need Help?

All times are GMT. The time now is 01:58 PM.


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