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"Reference" TDA1541A DAC with I2S-BUS architecture
"Reference" TDA1541A DAC with I2S-BUS architecture
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Old 7th February 2013, 12:08 PM   #911
dvb projekt is offline dvb projekt  Germany
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"Reference" TDA1541A DAC with I2S-BUS architecture
Quote:
Originally Posted by dvb-projekt View Post
Bargain Sale


Here you could order two of my ready build Red Baron DAC test module:

Main Parts

- PRP resistors
- Sanyo OS-CON SEPC capacitors
- Highspeed NL17SZ02 adapter pcb for DEM-Reclocking

for the special price of


$55 each

including
Worldwide shipping and paypal fee


Click the image to open in full size.



If you are interested, please send me a PM.



Both sold!
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Old 8th February 2013, 09:01 AM   #912
dvb projekt is offline dvb projekt  Germany
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"Reference" TDA1541A DAC with I2S-BUS architecture
Exclamation Announcement

The Red Baron V3.0 DAC Module is sold out.

The new Red Baron V4.0 DAC Module
is comming soon...


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Old 8th February 2013, 10:39 AM   #913
noizas is offline noizas  Lithuania
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Default Red Baron V4 features

Quote:
Originally Posted by dvb-projekt View Post
The Red Baron V3.0 DAC Module is sold out.

The new Red Baron V4.0 DAC Module
is comming soon...


Hi Oliver

what is new in your incoming Red Baron V4?

You have mentioned use of 1210 decoupling capacitors 1uF/16V acryl (DF - about 1.5%).

Can you also add soldering pads for SMD 1206 decoupling capacitors on upper side of PCB (under TDA1541)?
This would allow to use decoupling capacitors as it was in most old Philips and Marantz CD players , but current days we can put COG/NPO 100nF capacitors here. Those capacitors have less that 0.1% DF, so it can be worth.
And your PCB would be more flexible in application.

Best regards
Saulius
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Old 8th February 2013, 11:47 AM   #914
regal is offline regal  United States
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Quote:
Originally Posted by noizas View Post
Hi Oliver

what is new in your incoming Red Baron V4?

You have mentioned use of 1210 decoupling capacitors 1uF/16V acryl (DF - about 1.5%).

Can you also add soldering pads for SMD 1206 decoupling capacitors on upper side of PCB (under TDA1541)?
This would allow to use decoupling capacitors as it was in most old Philips and Marantz CD players , but current days we can put COG/NPO 100nF capacitors here. Those capacitors have less that 0.1% DF, so it can be worth.
And your PCB would be more flexible in application.

Best regards
Saulius
X2
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Old 8th February 2013, 03:29 PM   #915
dvb projekt is offline dvb projekt  Germany
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"Reference" TDA1541A DAC with I2S-BUS architecture
Quote:
Originally Posted by noizas View Post
Hi Oliver

what is new in your incoming Red Baron V4?

You have mentioned use of 1210 decoupling capacitors 1uF/16V acryl (DF - about 1.5%).

Can you also add soldering pads for SMD 1206 decoupling capacitors on upper side of PCB (under TDA1541)?
This would allow to use decoupling capacitors as it was in most old Philips and Marantz CD players , but current days we can put COG/NPO 100nF capacitors here. Those capacitors have less that 0.1% DF, so it can be worth.
And your PCB would be more flexible in application.

Best regards
Saulius
Quote:
Originally Posted by regal View Post
X2
You will find a solution on the New Red Baron V4.0!

BTW, John (-ecdesigns-) recommend to use Cornell Dubilier FCA1210C105M-G2 1F/16V SMD on all decoupling pins (DF: 0.015%).

You will find these in the new RB V4.0 BOM.

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Old 8th February 2013, 04:26 PM   #916
noizas is offline noizas  Lithuania
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Quote:
Originally Posted by dvb-projekt View Post
You will find a solution on the New Red Baron V4.0!

BTW, John (-ecdesigns-) recommend to use Cornell Dubilier FCA1210C105M-G2 1F/16V SMD on all decoupling pins (DF: 0.015%).

You will find these in the new RB V4.0 BOM.

Tangent delta (DF): 0.015 (data from datasheet in Mouser) is 1.5 % .
It is almost twice better than any X7R ceramic (0.025 - 0.05), but still ten times worse than COG/NPO (<0.001).
Problem with NPO capacitors is low capacitance per volume - we need at least
100 nF, better 470nF, best - 1000 nF.
But ot would be fine to try do it with 100nF NPO, if this not enough - to add 0.47 - 1.0 uF syacked type MKT or any other suitable capacitor.
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Old 9th February 2013, 06:11 AM   #917
dvb projekt is offline dvb projekt  Germany
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&quot;Reference&quot; TDA1541A DAC with I2S-BUS architecture
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Originally Posted by noizas View Post
Tangent delta (DF): 0.015 (data from datasheet in Mouser) is 1.5 %
Ups...
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Old 9th February 2013, 06:45 AM   #918
samoloko is offline samoloko  Bulgaria
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check out Panasonic PPS ECHU or ECPU - more capacitance
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Old 9th February 2013, 09:36 PM   #919
crobbins5421 is offline crobbins5421  United States
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Default Red Baron with Ian FIFO

I (finally) finished the integration of the Ian FIFO with The Red Baron. Build notes are in my last post. FWIW...

1. Lock frequency is ~88K
2. Salas 5V shunt modded to ~6V (500mA) - Thanks Oliver and Salas.
3. Decoupling caps - 3.9 uF Solen (Thanks James) on MSB pins. 1 uf WIMA on the next two pins (other 1 uF underneath). Following 4 caps are .22 uF WIMA.
4. Air cap is BARELY engaged. Used -40 dB music to fine tune.
5. 6.8K resistors under the board
6. Ian FIFO works flawlessly - Bravo!
7. USB to I2S converter from JarekC. 16 bit data/16 bit frame. Very easy install. It's the second of JarekC's converters I've used.

Early listening has me speechless...its just so smooooth...with no detail loss. The two things that stick out are the bass improvement (weight and attack) and the upper ferquency range (clarinet and harmonica have no "etch")

I'll report back once this gets a few hundred hours on it.
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Old 10th February 2013, 05:35 AM   #920
dvb projekt is offline dvb projekt  Germany
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&quot;Reference&quot; TDA1541A DAC with I2S-BUS architecture
Quote:
Originally Posted by crobbins5421 View Post
I (finally) finished the integration of the Ian FIFO with The Red Baron. Build notes are in my last post. FWIW...

1. Lock frequency is ~88K
2. Salas 5V shunt modded to ~6V (500mA) - Thanks Oliver and Salas.
3. Decoupling caps - 3.9 uF Solen (Thanks James) on MSB pins. 1 uf WIMA on the next two pins (other 1 uF underneath). Following 4 caps are .22 uF WIMA.
4. Air cap is BARELY engaged. Used -40 dB music to fine tune.
5. 6.8K resistors under the board
6. Ian FIFO works flawlessly - Bravo!
7. USB to I2S converter from JarekC. 16 bit data/16 bit frame. Very easy install. It's the second of JarekC's converters I've used.

Early listening has me speechless...its just so smooooth...with no detail loss. The two things that stick out are the bass improvement (weight and attack) and the upper ferquency range (clarinet and harmonica have no "etch")

I'll report back once this gets a few hundred hours on it.
Hi Chris,

this is a very promising short review. I hope Ian could start the GB IV shortly, because i couldnt await to integrate the FIFO in my rig...

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