XMOS-based Asynchronous USB to I2S interface - Page 157 - diyAudio
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Old 27th December 2012, 06:25 PM   #1561
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Join Date: Nov 2007
Quote:
Originally Posted by qusp View Post
I guess you mean the Murata EMIFIL NFM/L/R/E range? excellent parts, they look like 4 terminal but are 3 terminal. they come in larger than 0603 these days, right up to 2220
There are other manufacturers like TDK that make similar products but, in my opinion, with less performance. After all passing years I will (finally) have the chance to solder some in January on a new board that will come out soon.
Cheers,
L
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Contact link for WaveIO USB-to-I2S/SPDIF board.
Daughter card GB list for WaveIO can be found here
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Old 27th December 2012, 09:36 PM   #1562
jrling is offline jrling  United Kingdom
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Join Date: Jan 2010
Location: London England
Default New Board?

I am sure that I am not alone in wondering what new board you are planning?
I assume you do not mean the WaveIO daughter board.

Please tell us!
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Old 28th December 2012, 09:59 PM   #1563
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If i properly understood, than if i want to use isolated i2s output i need separate 3.3V power supply. How do do it properly ?
I am using TP Placid to power my WaeIO. Can i just connect another regulator to 5v Placid output to get 3.3 V ? Any hints ?
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Old 29th December 2012, 07:36 AM   #1564
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Location: Bologna, Italy
Quote:
Originally Posted by sinski View Post
If i properly understood, than if i want to use isolated i2s output i need separate 3.3V power supply. How do do it properly ?
http://www.nve.com/Downloads/il71x.pdf

You can supply anywhere from 3.0 to 5.5Vdc
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Old 29th December 2012, 08:00 AM   #1565
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Join Date: Feb 2009
Location: Brisbane, Australia
Quote:
Originally Posted by sinski View Post
If i properly understood, than if i want to use isolated i2s output i need separate 3.3V power supply. How do do it properly ?
I am using TP Placid to power my WaeIO. Can i just connect another regulator to 5v Placid output to get 3.3 V ? Any hints ?
The voltage that you supply the 'clean' side should be the same as the logic voltage level expected by your DAC.

You should not use the placid reg that supplies the WaveIO as this then passes the noise propagating on the ground connection to the 'clean' side and this negates the intention of the isolator. So a separate regulated supply should be provided to the 'clean' side of the WaveIO isolated output.
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Old 29th December 2012, 10:32 PM   #1566
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Join Date: Nov 2002
Location: Cologne, Germany
I use currently a lt1084-regged psu for the isolator...and I am wondering if not taking the 3.3v from the buffalo-dac would not be even better, e.g. from the i2c connector ? I read somewhere that looking at the isolator psu wise as part of the dac makes most sense, so identical noise is helpful. If that is the case...which 3.3v tap from the buffalo is adviseable ? I believe there are at least two different areas or regs i could try to use...
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Old 31st December 2012, 09:07 PM   #1567
brgds is offline brgds  Poland
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Guys, could you pls advise the physical dimensions of the WaveIO board. Thanks.
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Old 31st December 2012, 09:30 PM   #1568
mjock3 is offline mjock3  United States
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Dimensions are: 66.2mm x 68.2 mm
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Old 31st December 2012, 09:42 PM   #1569
brgds is offline brgds  Poland
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Location: Poland
Thanks mjock3, and Happy New Year!
(counting down last quarter of 2012 on my side
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Old 31st December 2012, 09:54 PM   #1570
mjock3 is offline mjock3  United States
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Happy New Year to you as well as the rest of the DIY community.
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