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 Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Philips SAA7220 Reclock PCB any good?
Philips SAA7220 Reclock PCB any good?
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 April 2019, 12:45 PM   #11
DawgNo1 is offline DawgNo1  United Kingdom
diyAudio Member
 
Join Date: Mar 2005
Location: Berkshire
Quote:
Originally Posted by hollowman View Post
The hell with DEM reclocking ... just put a good cap with appropriate value on the 1541 DEM pins. As the datasheet suggests.
If you've got time to kill, invest it in building dedicated pwr regulators for each IC's power pins.
All my TDA players seem to have a cap on these pins already, obviously SMD, is the upgrade related to the type of capacitor or is it related to machines that didnt have it fitted already?
  Reply With Quote
Old 14th April 2019, 02:20 PM   #12
schillg11 is offline schillg11  Germany
diyAudio Member
 
Join Date: Dec 2011
Location: near Stuttgart
It is related to additional 14 capacitor with 220 or 330nF on the DEM lines(mostly used WIMA MKS-2), google for Lampizator and you'll find the explanation therefore (TDA1541A).


A better reclocking for the SAA7220 is also recommended, since the slope of the original clock is very weak.
  Reply With Quote
Old 14th April 2019, 02:35 PM   #13
DawgNo1 is offline DawgNo1  United Kingdom
diyAudio Member
 
Join Date: Mar 2005
Location: Berkshire
Quote:
Originally Posted by schillg11 View Post
It is related to additional 14 capacitor with 220 or 330nF on the DEM lines(mostly used WIMA MKS-2), google for Lampizator and you'll find the explanation therefore (TDA1541A).


A better reclocking for the SAA7220 is also recommended, since the slope of the original clock is very weak.
Thanks for the reply, I followed Lukasz from the early days, I don't see a link to the DEM cap and his works, he has helped me a lot in building an ultimate valve output stage but I think he has limits and also issues, he always recommend 100r IV resistor, way too high in my opinion, also backed up by data. I am going to reclock the cdp.
Alan
  Reply With Quote

Reply


Philips SAA7220 Reclock PCB any good?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SAA7220 reclock question with 74HC175N help MAZCO12345678 Digital Source 0 26th January 2018 08:11 PM
How to add reclock in Philips CD303 olaychang Digital Source 12 3rd February 2011 07:43 AM
Philips CD-951: Tent Labs XO3 and SPDIF reclock plus I2S out Hercules Digital Source 22 2nd January 2010 11:54 PM
Saa7220 sparks from ground pin (killed a saa7220 ?) ash_dac Digital Source 26 26th March 2006 02:32 PM
Looking for Discontinued Philips Part Digital filter SAA7220 P/B xorbitman Parts 0 19th July 2005 06:09 PM


New To Site? Need Help?

All times are GMT. The time now is 08:43 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki