tda1541 decoupling caps - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, 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 21st May 2006, 10:31 AM   #1
weegs is offline weegs  New Zealand
diyAudio Member
 
Join Date: Mar 2006
Location: Dunedin
Send a message via Yahoo to weegs
Cool tda1541 decoupling caps

Hi Team I am building a non sampling da converter using two tda1541 si chips
This design is based on the leshsa dac off the net .
I am looking for .47-1uf polyproperlene 50volt .They need two be real small as I am using a circuit board and things are tight, has any one got a good source
  Reply With Quote
Old 13th September 2006, 09:54 PM   #2
diyAudio Member
 
Join Date: Aug 2006
Default Sources

You should find in google search MOUSER electronics or DigiKey or type in Black Gate Nonpolar. Good luck.
  Reply With Quote
Old 14th September 2006, 07:18 AM   #3
PetrL is offline PetrL  Czech Republic
diyAudio Member
 
Join Date: Sep 2005
I have built nos dac with single 1541. Did many experiments with these caps and can say 0.1uF polypropylene is enough for all pins except the two MSB pins, where I finally settled on 2uF MKT. Also there is no benefit (in my case) going above the 2.2uF here. These 2 pins have huge impact on the sound unlike the others (though they also have). So I advise not to stick on particular type/value and order more at once.

Don't know if for twin dac would be the same, though.
  Reply With Quote
Old 14th March 2007, 08:57 PM   #4
diyAudio Member
 
Join Date: Mar 2004
Location: UK
Hi,

Can anyone explain how to choose the 'correct' value for the decoupling caps and what effect this has on the sound.

Schematics I've seen

1) 100nF on each pin (from the datasheet)
2) 4.7uF tant on the two most significant bits on each side (13,12,18,19) and then 220nF on the remaining 10 pins
3) film caps (unknown value) on all 14 pins with an additional Oscon (unknown value) on each of the two MSB pins.

Any thoughts or comments ?

Cheers,

Jon
  Reply With Quote
Old 15th March 2007, 01:40 PM   #5
diyAudio Member
 
Join Date: Jul 2004
Location: Hong Kong
hi,

for the 14 coupling caps I still prefer 0.1uf MKP.

Finally I choose original Philips 0.1uf MKP & two the best was epcos 100V 0.1~0.15uf MKP & another one was siemens MKL 0.1uf.

thx

thomas


Click the image to open in full size.
  Reply With Quote
Old 15th March 2007, 03:30 PM   #6
weissi is offline weissi  Europe
diyAudio Member
 
weissi's Avatar
 
Join Date: Sep 2002
Location: Austria
all with a lot of inductance....
__________________
regards / servus
  Reply With Quote
Old 15th March 2007, 05:10 PM   #7
lucpes is offline lucpes  Romania
diyAudio Member
 
Join Date: Dec 2003
Location: Iasi
Send a message via Yahoo to lucpes
WIMA MKP 2 series offer pretty good quality in a small footprint: 5mm - 0.33uf, but you can solder an aditional cap on the other side of the board if you need for the MSBs.

http://www.mouser.com/catalog/621/538.pdf
__________________
Deep down inside.
  Reply With Quote
Old 7th December 2013, 11:43 AM   #8
diyAudio Member
 
Join Date: Mar 2011
I'm thinking about using c0g's in my RED BARON, what do you think? Those seem very good caps.
  Reply With Quote
Old 7th December 2013, 06:59 PM   #9
oshifis is offline oshifis  Hungary
diyAudio Member
 
Join Date: Mar 2004
Location: Budapest, Hungary
It is good sounding for me without any capacitors...
  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
Best decoupling caps for TDA1541 D.A.R.R.Y.L. Digital Source 5 27th April 2006 05:28 PM
Decoupling caps(again) argonrepublic Parts 2 10th May 2005 11:32 PM
Manipulating TDA1541 via decoupling pins Bernhard Digital Source 0 7th April 2004 09:49 PM
Best Decoupling caps for TDA1541 mrstone Digital Source 0 27th January 2004 03:56 AM
Voltage on TDA1541s decoupling pins... weissi Digital Source 4 14th January 2004 08:34 PM


New To Site? Need Help?

All times are GMT. The time now is 01:40 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