PCM4204, DSD to PCM conversion - 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 20th November 2005, 09:14 PM   #1
diyAudio Member
 
Join Date: Dec 2004
Location: here now
Default PCM4204, DSD to PCM conversion

Just noticed that TI's PCM4204 seems to be usable as 4-channel DSD to PCM converter.

Using this part will be alot easier than buying Pioneer DV-575A and DV-578A or the otherwise unobtainable SM5819AF.

Hope this helps,
  Reply With Quote
Old 28th November 2005, 12:41 PM   #2
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
Yes it does!
Looks very promissing. Much better than sm5819. Now we must wait for a CD/DVD/SACD-player with this chip so we can diy our way into an high performance digital (PCM) output for SACD.
  Reply With Quote
Old 28th November 2005, 12:54 PM   #3
diyAudio Member
 
Join Date: Dec 2004
Location: here now
There's no need to wait for players with PCM4204 (there probably won't be any since PCM4204 is supposed to be used in professional audio equipment) - it could be hooked to any player with DSD DAC.

Or, if SACD over FireWire does not use additional DTLA encryption layer on top of the SACD stream (someone, please tell me that it doesn't) and there are any SACD players with FireWire output capability, external FireWire "ripbox" with digital 24/192 output could be realized with TSB43CB43A, PCM4204 and SPDIF transceiver.

Is there any interest in a such device?
  Reply With Quote
Old 28th November 2005, 01:04 PM   #4
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
I'm not shure what you are talking about, but as I understand it the pcm4204 chip can convert a digital dsd-signal directly to high-res pcm. The pcm than can be used in dsp-based digital correction and crossover machines.
  Reply With Quote
Old 28th November 2005, 03:52 PM   #5
diyAudio Member
 
Join Date: Dec 2004
Location: here now
The point is that you probably could mod just about any SACD player, not only the ones using some form of DSD-PCM conversion
  Reply With Quote
Old 29th November 2005, 08:54 AM   #6
diyAudio Member
 
Join Date: Feb 2003
Location: deventer
My point is having a high-res pcm output from sacd (after modding or implementing a diy-kit in a sacd-player). And this pcm 4204 has the ability to do just this (DSD-24/176,4 the sm5819 can only do 88,2)
  Reply With Quote
Old 29th November 2005, 05:01 PM   #7
diyAudio Member
 
Join Date: Aug 2003
Location: Santa Cruz, California
You might want to check the PCM4202 link: it's a 2 channel part (the 4204 is 4 channels), in a 28 pin SSOP package compared with the 4204 in a 64 pin quad flat pack which needs heatsinking to the circuit board, so for that reason I'd say the 4202 looks easier to use in a DIY context.

The '04 supports TDM for up to 8 channels on a single serial link, whereas the '02 doesn't, but I don't think that's a deal breaker.
  Reply With Quote
Old 29th November 2005, 05:47 PM   #8
diyAudio Member
 
Join Date: Dec 2004
Location: here now
PCM4202 doesn't support DSD input mode (at least as the datasheet says)

Heatsinking could be sorted out without access to reflow soldering equipment by placing thermal interface between board and powerpad and/or conventional heatsink on top of the chip
  Reply With Quote
Old 29th November 2005, 08:53 PM   #9
diyAudio Member
 
Join Date: Aug 2003
Location: Santa Cruz, California
Oops, you're right, forgot to check that.

I presume you're thinking of recreating the system clock from the various bit clocks?
  Reply With Quote
Old 30th November 2005, 05:54 AM   #10
diyAudio Member
 
Join Date: Dec 2004
Location: here now
That's one possibility, other is using the player's system clock since it's there and could be tapped from the same DSD DAC we're getting the DSD bitstream from
  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
SVC to DVC conversion madstamm Subwoofers 8 13th January 2008 04:45 PM
dB/W/M conversion - M vs 0.5 M ?? MadMutt Multi-Way 3 26th December 2007 12:51 PM
24 to 18 bit conversion ??? Lyra Digital Source 13 9th March 2006 02:03 PM
9v to 12v conversion purprobe Parts 2 17th September 2005 09:37 PM
PCM to DSD conversion liz Digital Source 6 2nd October 2003 08:53 AM


New To Site? Need Help?

All times are GMT. The time now is 04:59 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