CXD2550 - any infos? - 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 30th December 2003, 12:23 PM   #1
weissi is offline weissi  Europe
diyAudio Member
 
weissi's Avatar
 
Join Date: Sep 2002
Location: Austria
Default CXD2550 - any infos?

Hi there!

I recently bought a Sony CDP-670, nothing special in there, but Iīd like to have some infos on the CXD2550, must be a Digital Filter, its lokated between the DSP and the DACīs, 2xPCM56.
Itīs was interesting to compare it to my CDP-M75 (TDA1541a, 4xoversampling). The PCM56 seem to have much more controlled low frequency reproduction, but I have compared them only as a hole system...
Itīs also interesting as the CDP-670 states on its front that itīs 8times oversampling, in PCM56īs datasheet, the DAC is only suitable for 4times oversampling......
Beside them, it should be no miracle to replace the PCM56īs with a TDA1541A...
I love it, really, the TDA1541A... Cannot say that any newer sigmadelta-DAC sounds better... currently it sounds a little bit harsh mostly due to the usage of OPA2134 in the I/V...

So, back to the main thing, would be nice if anyone can provide me infos on the older Sony CD-Players...

Wish you a happy new year! PROSIT!
__________________
regards / servus
  Reply With Quote
Old 1st January 2004, 02:56 AM   #2
diyAudio Member
 
Join Date: Oct 2001
Location: .
Judging from the information in the AD1868 datasheet, the CXD2550P looks very similar to the CXD2551P in that they both are 18pin DIP and at least some of the key pins are in the same position so I will proceed on the basis that they are pin compatible.
According to the diagram showing the CXD2550P mated to the AD1868 in the AD1868 datasheet, the CXD2550P can run at 4Fs or 8Fs. At 8Fs and 48bit slots bitclock is around 8.5MHz, well within the capabilities of the PCM56.
If you want to use the TDA1541 pins 2 and 18 will have to be pulled low to select 4Fs (pin2) and 16 bit data(pin18). In 4Fs mode pin 16 is L and R serial data, pin17 is LRCLK and pin 13 is bitclock. As the above is in Sony format (NOT Sony/BB) some logic will be needed to convert this to I2S. LRCLK will have to be inverted and the data will have to be MSB justified to one bitclock position after the transtion of LRCLK. Alternatively save yourself the aggravation and insert a TDA1543A which Sony format ready.
  Reply With Quote
Old 1st January 2004, 01:07 PM   #3
weissi is offline weissi  Europe
diyAudio Member
 
weissi's Avatar
 
Join Date: Sep 2002
Location: Austria
Wow, thanks a lot!

OK, no TDA1543 isnīt my first choice... build one on the fast way, I didnīt like the sound, maybe if implemented good it does so, but TDA1541a is more symphatic to me :-)
Btw, format of cxd2550 must be compatible with my df1706, is it?
Then I can stick them together with 2 PCM1702īs or even with my TDA1541A.... and again, I had to read datasheets....,

Thanks, and a happy new year!
__________________
regards / servus
  Reply With Quote
Old 1st January 2004, 07:21 PM   #4
diyAudio Member
 
Join Date: Oct 2001
Location: .
Connecting the DF1706 to the TDA1541 will need some glue logic.
  Reply With Quote
Old 1st January 2004, 07:27 PM   #5
weissi is offline weissi  Europe
diyAudio Member
 
weissi's Avatar
 
Join Date: Sep 2002
Location: Austria
Do you know the PCM1702? Is it worth to pay 40€ for a pair of them?
__________________
regards / servus
  Reply With Quote
Old 1st January 2004, 11:03 PM   #6
diyAudio Moderator Emeritus
 
jean-paul's Avatar
 
Join Date: Sep 2002
Location: Germany
rfbrw, do you have a datasheet of CXD2551P ?
__________________
It's only audio. Official member of the Norske Brillegeit Gang.
  Reply With Quote
Old 1st January 2004, 11:10 PM   #7
diyAudio Member
 
Join Date: Oct 2001
Location: .
Yes. Where should I send it?
  Reply With Quote
Old 2nd January 2004, 09:25 AM   #8
diyAudio Member
 
Join Date: Sep 2003
Location: Greece
hi people. Sorry to break in your thread but could you please help me out too and see my thread about my sony CDP with CXD chip.

I want to be able to feed a commercial DAC (ART DI/O) and it doesnt have any ind of digital outs. The chip according to the data sheet of the chip has a digital out pin, which I dont know what kind of dig. signal it gives or anything about it.

Please see my thread.
  Reply With Quote
Old 10th October 2005, 08:20 AM   #9
diyAudio Member
 
Join Date: Feb 2005
Location: Vietnam
Send a message via Yahoo to minorchange
Hi everybody!

I'm also interested about CXD2550 datasheet, or CXD2551P datasheet if ii's similar to 2550. Please send me your datasheet.

My address: tanminh_vns@yahoo.com

btw, is CXD2550 compatiple with CS8412?

Thanks for your help!
  Reply With Quote
Old 2nd February 2011, 04:20 PM   #10
diyAudio Member
 
Join Date: Sep 2008
Hello guys i need that data too on krokotamus(at)mail.bg - 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
Aleph L schematic/discussion/infos? h_a Pass Labs 4 16th January 2007 09:34 AM
I need infos about Threshold SA series (can't afford the XA-200 yet ;-) ) Thurax Pass Labs 3 18th July 2004 07:23 PM
infos on PHASE LINEAR PL400 lenti Solid State 4 14th November 2003 11:57 AM


New To Site? Need Help?

All times are GMT. The time now is 08:27 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright Đ1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2