"Reference" TDA1541A DAC with I2S-BUS architecture - Page 4 - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

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
View Poll Results: Surface Finish for future PCBs
ENIG - Electroless Nickle/Immersion Gold 59 46.46%
Immersion Silver 36 28.35%
Immersion Tin 18 14.17%
OSP - Organic Solderability Preservatives 14 11.02%
Voters: 127. You may not vote on this poll

Reply
 
Thread Tools Search this Thread
Old 6th July 2010, 05:19 PM   #31
UV101 is offline UV101  England
diyAudio Member
 
UV101's Avatar
 
Join Date: Dec 2008
Location: Oxford
Started the TDA board to initially replace the DAC section in my CD960. I want to take the I2S after the SAA7220P/B (already tested on my other 1541 DAC.)

I'm waiting for Takman R's and 3 BG FK's for the TDA rails from Parts connection, the bit decoupling caps and an inductor but this is it so far!
Attached Images
File Type: jpg IMG_6195_Medium.JPG (116.2 KB, 1313 views)
__________________
When Bitstream came out, I thought, my God, what are we going to do...? Ken Ishiwata http://www.hifisounds.co.uk
JA-88D Class A, Audio Aero Capitole MKII, Focal and Kimber "Leave Nothing as Standard"
  Reply With Quote
Old 9th July 2010, 09:56 PM   #32
Malka07 is offline Malka07  England
diyAudio Member
 
Join Date: Mar 2009
Finished The 5v Salas Reg today and tested with 9v battery's

Click the image to open in full size.
  Reply With Quote
Old 13th July 2010, 10:24 AM   #33
diyAudio Member
 
regiregi22's Avatar
 
Join Date: May 2009
Location: Madrid (Spain)
Is anybody going to try adifferent output stage rather than Tube-i-zator?
__________________
diyAudio, doing it as big as you can, JUST BECAUSE WE CAN!
  Reply With Quote
Old 13th July 2010, 02:08 PM   #34
Thomo is offline Thomo  United Kingdom
diyAudio Member
 
Thomo's Avatar
 
Join Date: Nov 2006
When I finally get around to building mine, I shall try my Pass D1 and also an opamp based I/V stage using Burson opamps.

Cheers, Lee.
  Reply With Quote
Old 13th July 2010, 10:28 PM   #35
UV101 is offline UV101  England
diyAudio Member
 
UV101's Avatar
 
Join Date: Dec 2008
Location: Oxford
Mine will start with a Burson opamp I/V with CCS for nulling the DC offset (same as my philips CD960), but I will build the Tube-i-zator. I've previously tried many combinations on the outut of a 1541 including oamp I/V into a tube buffer (clone of MF). The best out of the box is the fully discrete I/V and DC servo found in Meridian cdps with this dac.

The Takman R's and BG's arrived today S2 won't go in until i've completed any testing!!!!
Attached Images
File Type: jpg IMG_6212.JPG (234.7 KB, 1251 views)
__________________
When Bitstream came out, I thought, my God, what are we going to do...? Ken Ishiwata http://www.hifisounds.co.uk
JA-88D Class A, Audio Aero Capitole MKII, Focal and Kimber "Leave Nothing as Standard"
  Reply With Quote
Old 15th July 2010, 10:20 AM   #36
diyAudio Member
 
Join Date: Oct 2009
Location: Brunei
I am still in doubt what to use as output stage. Will anybody build the Thorsten Loesch tube stage?
  Reply With Quote
Old 22nd July 2010, 08:06 AM   #37
UV101 is offline UV101  England
diyAudio Member
 
UV101's Avatar
 
Join Date: Dec 2008
Location: Oxford
Default IRFP9240 alternative???

Guys,

I have a supply issue with IRFP9240. RS, Farnell and several other UK suppliers are out of stock of this device. Mouser have a 32 week lead time, infact Vishay appear not to have any!

Looking at the specs on Vishays website, it appears that there is an identical device for both IRFP9240 and IRFP240 but in a TO-200 package. I have looked at all datasheets and I cannot see any technical differences except the package.

IRFI240 (TO-247) = IRF640 (TO-220)
IRFI9240(TO-247) = IRF9640(TO-220)

Whilst the board is not designed for TO-220, I suspect that the device can be used given the apparent shortage of the IRFP9240.

So currently I have negative regs, but no positive!
Attached Images
File Type: jpg IMG_6237.JPG (235.5 KB, 1157 views)
__________________
When Bitstream came out, I thought, my God, what are we going to do...? Ken Ishiwata http://www.hifisounds.co.uk
JA-88D Class A, Audio Aero Capitole MKII, Focal and Kimber "Leave Nothing as Standard"
  Reply With Quote
Old 22nd July 2010, 08:21 AM   #38
diyAudio Member
 
dvb projekt's Avatar
 
Join Date: Feb 2009
Location: Willich, Germany
Blog Entries: 37
Send a message via Skype™ to dvb projekt
If you want to use other devices, i recommend to write a short PM to Salas if he sees no problems.

BTW, Conrad have them in stock! Conrad
__________________
Reference TDA1541A DAC project PCBs / Tube-I-zator PCB / SSHV-Shunt PCB
Stock status in my Blog
  Reply With Quote
Old 22nd July 2010, 11:53 PM   #39
toufu is offline toufu  United States
diyAudio Member
 
Join Date: Jun 2008
Location: San Francisco
Oliver, how do we connect the input to the dac? Do you get an optical jack? I don't mind using coaxiel. Where do we buy them and how to connect? Thanks.
  Reply With Quote
Old 23rd July 2010, 06:36 AM   #40
diyAudio Member
 
dvb projekt's Avatar
 
Join Date: Feb 2009
Location: Willich, Germany
Blog Entries: 37
Send a message via Skype™ to dvb projekt
Quote:
Originally Posted by toufu View Post
Oliver, how do we connect the input to the dac? Do you get an optical jack? I don't mind using coaxiel. Where do we buy them and how to connect? Thanks.
Hi toufu,

you need a SPDIF to I2S converter i.e. from Doede Douma or Twisted Pear Audio.

If you want to work with a optical input, you connect the Toslink Module from Twisted Pear Audio in front of the SPDIF to I2S converter.

Thats all. Not really difficult.


Best regards,
Oliver
__________________
Reference TDA1541A DAC project PCBs / Tube-I-zator PCB / SSHV-Shunt PCB
Stock status in my Blog
  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
i2s bus vs. i2c bus Doovieman Digital Source 9 5th February 2013 02:08 PM
My take to the "Reference" TDA1541A DAC with I2S-BUS architecture dvb projekt Digital Line Level 130 30th January 2011 01:54 PM
what is "ground bus"? gychang Parts 4 12th November 2007 09:21 PM
PCM2707 I2S out to TDA1541A DAC TV Man Digital Source 3 4th December 2004 05:53 PM
A real DAC Philips TDA1541A "Double Crown"? dbhh Digital Source 17 7th May 2004 05:15 AM


New To Site? Need Help?

All times are GMT. The time now is 01:30 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