Philips 304 mods. Tda1540 to Tda 1541 and DEM RECLOCKING - 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 14th November 2010, 04:15 PM   #1
diyAudio Member
 
Join Date: Sep 2003
Location: Italy
Default Philips 304 mods. Tda1540 to Tda 1541 and DEM RECLOCKING

Hello to everyone.

I want to update my Philips 304 with a pair of TDA 1541.

I already found some threads here..but i could not find the aswer to all my questions..so i hope that someone will help me.

After switching the TDA1541 in simultaneous mode..is better to think about a reclock..? Or to use the diagram here enclosed?

I would like to use also the DEM reclock circuit proposed by ECdesign..is it possible to use it with the TDA 1541 in Simultaneous mode..? If yes ...How?

THanks again.

MAurizio.
Attached Images
File Type: jpg screen-capture.jpg (145.3 KB, 426 views)
File Type: jpg TDA1540 NOS002.jpg (126.9 KB, 408 views)
  Reply With Quote
Old 15th November 2010, 08:08 PM   #2
oshifis is offline oshifis  Hungary
diyAudio Member
 
Join Date: Mar 2004
Location: Budapest, Hungary
I was who made the hand sketch on the left. In simultaneous mode it is important to reclock the LE (Latch Enable) signal, since it controls the conversion. The CLCF- is a pulse train, it can not be used for DEM. You can combine the I2S attenuator (it should work also for simultaneous signals) with my circuit. As for the DEM, I have no experience, but I think it is better to keep it below 1 MHz. Try a /4 or /8 divider from the master clock - or ask _ecdesigns_, he knows the TDA1541A in and out.
  Reply With Quote
Old 16th November 2010, 07:25 AM   #3
diyAudio Member
 
Join Date: Sep 2003
Location: Italy
Thanks for your reply..

I'm thinking to prepare one pcb for the two tda1541, and one to replace the SAA7030 with your circuit buiklt in..

I will try to ask to EC design if he can help me about the DEM Reclock.

Thanks again.

Maurizio.
  Reply With Quote
Old 18th November 2010, 09:44 AM   #4
diyAudio Member
 
Join Date: Sep 2003
Location: Italy
HI Osi..

Did you get real benefits reclocking the LE? Did you compared the sound with or without LE reclock?

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
TDA 1541 Philips Cd Pro2 nafanja Digital Source 2 24th November 2008 05:39 PM
Ghetto Philips CD471, 1541 inside, mods ? brianuk Digital Source 10 14th April 2004 06:19 PM
Phillips/Marants TDA 1541 CD 80 mods. goldears Digital Source 21 18th January 2004 12:29 PM
Non os reclocking, I2S and DEM reclocking Zodiac Digital Source 13 16th January 2004 11:24 PM


New To Site? Need Help?

All times are GMT. The time now is 04:42 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