clockfrequency Philips DVD 963SA - 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 22nd January 2003, 04:26 PM   #1
Jaap is offline Jaap  Netherlands
diyAudio Member
 
Jaap's Avatar
 
Join Date: Dec 2002
Location: Netherlands
Question clockfrequency Philips DVD 963SA

Does anyone know the clockfrequency of the 963sa ?

Anyone experience with upgrading this machine ?

regards,

Jaap
  Reply With Quote
Old 26th August 2003, 05:44 PM   #2
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Lightbulb Clock frequency

Hi Jaap,
33.8688 MHz is used for SACD, 24.576 MHzfor upsampling and another one for ????

http://www.audiocominternational.com...psdvd963Sa.asp
Will soon know more as I have plans to tweak this model. Hopefully will get a manual too.See also:
http://forum.audiogon.com/cgi-bin/fr...1&openflup&1&4
  Reply With Quote
Old 27th August 2003, 12:14 PM   #3
diyAudio Member
 
Join Date: Dec 2001
Location: Eindhoven
Hi

The clock architecture of 963 is a mess

The SACD clock stms from a LL chip driven by the clock from the drive (yuck). Furthermore, 2 other crystal clocks are present, and too many gates control all the clocks

I am figuring out how to improve all this. Will keep you updated

best regards
__________________
Guido Tent
www.Tentlabs.com
  Reply With Quote
Old 27th August 2003, 02:56 PM   #4
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Question Philips DVD963SA

Quote:
Originally posted by Guido Tent
Hi

The clock architecture of 963 is a mess

The SACD clock stms from a LL chip driven by the clock from the drive (yuck). Furthermore, 2 other crystal clocks are present, and too many gates control all the clocks

I am figuring out how to improve all this. Will keep you updated

best regards
Guido,
This does not appeal to me as a sound recommandation for this product made by your employer!
LL does mean?
I hold my breath for your update.

  Reply With Quote
Old 27th August 2003, 05:13 PM   #5
diyAudio Member
 
Join Date: Oct 2001
Location: Hong Kong
Send a message via ICQ to hatasa
The 33.8688MHz for the SACD/CD DAC... (If I havent get wrong full frequency and half frequency cut off)

The 24.5760MHz for the Upsampling chips...

And there have the 27.000MHz for the DVD encoder chip... at the transport...

You know what still have the 8.4672MHz for the cotroller chip at the bottom of the Transport... but leave it alone!

  Reply With Quote
Old 27th August 2003, 06:55 PM   #6
diyAudio Member
 
Join Date: Dec 2001
Location: Eindhoven
Default Re: Philips DVD963SA

Quote:
Originally posted by Elso Kwak

Guido,
This does not appeal to me as a sound recommandation for this product made by your employer!
LL does mean?
I hold my breath for your update.


Hi Elso

Can't help it, I am into DVD +RW product development....

The 963 is a lot of function for money, som decent upgrades on clock and supply wouyd make it a killer, it contains decent opamps and a true AD1955 for the FRONT channels (so forget about normal stereo outputs)

LL should be PLL.....

regards
-
Guido
__________________
Guido Tent
www.Tentlabs.com
  Reply With Quote
Old 30th August 2003, 02:25 PM   #7
Jos v E is offline Jos v E  Netherlands
diyAudio Member
 
Join Date: Aug 2003
Location: Eindhoven
Unhappy DVD963SA audio clocks

I have done some measurements on the clock circuit of my DVD963....

A high-quality AD1955 audio DA-converter is used for the left and right Front channels. The 'master clock' of this chip (pin 27)
is 16.9MHz for CD-audio playback, 12.28MHz for DVD 5.1 audio, and 11.28MHz for MP3 and SACD playback.
This latter frequency is not generated with a nice crystal oscillator on the audio board, but seems to originate from a PLL circuit at the main driver-and-video board, passing through connectors and selection gates.
A low-jitter clock circuit upgrade should definitely bring audible improvement.
  Reply With Quote
Old 3rd September 2003, 08:48 AM   #8
diyAudio Member
 
Join Date: Jun 2003
Location: Nashville, TN
What op amp does the 963 use for an output stage?
  Reply With Quote
Old 5th September 2003, 08:03 PM   #9
diyAudio Member
 
Join Date: Dec 2001
Location: Eindhoven
Quote:
Originally posted by Bill Lummus
What op amp does the 963 use for an output stage?

All channels LM833 (yuck), front channels use AD 8032 (much better), and AD8022 I/V converters, fed by AD1955 DAC (very nice)

figure which channel sounds best.....

regards
__________________
Guido Tent
www.Tentlabs.com
  Reply With Quote
Old 5th September 2003, 09:10 PM   #10
Jaap is offline Jaap  Netherlands
diyAudio Member
 
Jaap's Avatar
 
Join Date: Dec 2002
Location: Netherlands

Allen Wright is going to do an upgrade for the 963 (see his website). What do you think ? I believe that his work on the sony machines is outstanding. Perhaps we should have him doing the difficult work ?
  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
Philips DVD-963SA, great condition, $150 pjanda1 Swap Meet 1 16th March 2009 02:19 PM
FS brand new Philips 963sa drive VAL6011/14 effective_audio Swap Meet 0 12th June 2008 06:32 AM
tent labs PSU for philips 963sa cporada Digital Source 3 27th April 2006 01:43 PM
FS. Dead Philips 963sa dvd player Htguy Swap Meet 0 13th March 2006 02:09 AM
Philips DVD 963sa as an SACD player Jaap Digital Source 0 2nd January 2003 09:02 PM


New To Site? Need Help?

All times are GMT. The time now is 09:15 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