TDA1543- How many to use? - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

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
Reply
 
Thread Tools Search this Thread
Old 11th February 2003, 08:56 AM   #1
diyAudio Member
 
Join Date: Apr 2002
Default TDA1543- How many to use?

All,

I have 16 TDA1543's available for use. What is teh optimal number for teh zero-oversampling DAC everyone raves about?

Should I use all 16 and get better signal/noise ratio?

Would one CS8412 still suffice for all 16?

Would I need to reclock for each TDA1543 (i.e. 16x 74hc74) or can I simply place one 74hc74 between the CS8412 and the 16 TDA1543?

Is the TDA1543 best run at 5V or 8V?

Thanks for helpful hints!
Ryan
  Reply With Quote
Old 25th February 2003, 02:27 PM   #2
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Lightbulb TDA1543

Hi Ryan,
In my experience one is the optimal number for the TDA1543.
The high's get kind of smeared when pallelling TDA1543's. Also I like +5V supply the most. I posted a schematic that I liked best.
If you are asynchronously reclocking it is best to use two flip-flops in series to countermeasure the metastability effect. See Feddes site for the idea. Click on the schematic of the DAC. Best use 74VHC74 (two flip-flops in one package. )
http://home.student.utwente.nl/f.s.b...dio/nonoz.html
  Reply With Quote
Old 25th February 2003, 09:36 PM   #3
diyAudio Member
 
Join Date: Oct 2001
Location: .
As another option you could use one stereo pair per channel in a balanced configuration i.e. one device per channel.

ray.
  Reply With Quote
Old 6th March 2003, 11:46 AM   #4
Zelko is offline Zelko  Croatia
diyAudio Member
 
Join Date: Mar 2003
Location: Zagreb
I prefer 3 paralleled, the best distorsion spectrum, dominant second, a bit of third and that's all.
The same has been confirmed on listening tests.
One only is a bit crude, rough in highs and a lot of 3rd harmonic.
Try different biasing and load resistors.
Good luck,
  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
Tda1543 fili Digital Source 6 7th July 2014 04:04 PM
Wtb: Tda1543 leadbelly Swap Meet 0 19th October 2006 05:42 AM
TDA1543 dac dariusku Digital Source 3 31st March 2006 06:38 PM
Where to buy TDA1543 D/A stan_33 Digital Source 32 7th May 2004 07:54 AM
TDA1543 Non OS DAC jean-paul Digital Source 83 22nd January 2004 10:27 PM


New To Site? Need Help?

All times are GMT. The time now is 09:41 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