High Performance WM8741 Super Mini DAC with I2S Data Switching – PCB - Group Buy

heartwinter · 31st August 2011, 07:48 AM

I am offering group buy for the same super compact upsampling Wolfson WM8741 Mini DAC PCB which was posted earlier. You can make your own high performance upsampling DAC using this PCB at home. The mini DAC has USB and coaxial inputs with I2S Data switching between the USB and coaxial. The DAC works from 6V to 7.5V 750mA regulated power supply. The PCB is a double-sided FR4 PCB. The PCB size is about 110 mm (l) x 60 mm (b). BOM, component layout and schematic for easy assembling will be provided with the board. The enclosure can be bought from RF connectors, Adapter, Cable Assemblies, Pigtail Cable, Tools, Wifi Antennas & Accessories. This aluminium enclosure is a perfect fit for the DAC board. The cost per board is $25 + $10 worldwide shipping. Those who are interested can PM with number of boards required. I will process the orders once I reach a minimum of 50. All members who are placing the order will be listed.

Following members are interested in the PCB

ANADIGIT - 1
markus22ch - 2

Need 47 more to go...

heartwinter · 1st September 2011, 06:58 AM

Got few boards fabricated in advance. Apart from those who had already placed their orders four boards are available for immediate shipping. If anyone interested can send PM immediately with full name, address, paypal ID and number of boards required.

heartwinter · 1st September 2011, 07:06 AM

There will not any any increase in the shipping charge even if two boards are ordered, it will be the same $10.

Jokener · 1st September 2011, 07:53 PM

Hey, I would be interested to know what design this is, if it is a publicly available design at all.
And if not, would it be possible to receive the CAD-files for it in return for a fee?
(I know a PCB prototyper and would like to get it in a black/gold flavor.)
Of course I would not share the design if that is not intended and I would not manufacture it for others without explicit permission!

heartwinter · 2nd September 2011, 04:14 AM

Quote:

Originally Posted by Jokener

Hey, I would be interested to know what design this is, if it is a publicly available design at all.
And if not, would it be possible to receive the CAD-files for it in return for a fee?
(I know a PCB prototyper and would like to get it in a black/gold flavor.)
Of course I would not share the design if that is not intended and I would not manufacture it for others without explicit permission!

Hello, i do not know if this design is publicly available or not, i haven't seen one yet. The pcb cad files are not available for sale. This project is meant only for diy hobbyist to make and enjoy a high performance super compact dac.

heartwinter · 2nd September 2011, 04:22 AM

Here are few boards which I got fabricated in advance and are available for immediate shipping. The components can be easily procured from ebay, farnell, digi-key, mouser, etc. If anyone interested can PM with full name, address, and paypal ID.

heartwinter · 2nd September 2011, 06:51 AM

Mr.Watchara Saladkaew, ANADIGIT from Thailand has paid for one board.

Frex · 2nd September 2011, 07:07 AM

Hello,

This project seem interesting, but before to buying the circuit-board, i would like to see the schematic.
Can you posted it ?
Regards.

Frex

tassosk · 2nd September 2011, 07:26 PM

I have received my boards. Thanks.
Nice quality. I have already started populating them. One will be stock, the other for experimentation with Sallas regulators, transformers +N.Pass buffer like my TP Opus or with That1200 + buffer.

korben69 · 2nd September 2011, 07:59 PM

Hi Tassosk
Nice to read your results vs Opus.
Could you give us some informations about your tweaks (a little bit OT... sorry)
PM will be more accurate.
Thanks

31st August 2011, 07:48 AM	#1
heartwinter diyAudio Member Join Date: Jun 2009 Location: Somewhere on Earth	High Performance WM8741 Super Mini DAC with I2S Data Switching – PCB - Group Buy I am offering group buy for the same super compact upsampling Wolfson WM8741 Mini DAC PCB which was posted earlier. You can make your own high performance upsampling DAC using this PCB at home. The mini DAC has USB and coaxial inputs with I2S Data switching between the USB and coaxial. The DAC works from 6V to 7.5V 750mA regulated power supply. The PCB is a double-sided FR4 PCB. The PCB size is about 110 mm (l) x 60 mm (b). BOM, component layout and schematic for easy assembling will be provided with the board. The enclosure can be bought from RF connectors, Adapter, Cable Assemblies, Pigtail Cable, Tools, Wifi Antennas & Accessories. This aluminium enclosure is a perfect fit for the DAC board. The cost per board is $25 + $10 worldwide shipping. Those who are interested can PM with number of boards required. I will process the orders once I reach a minimum of 50. All members who are placing the order will be listed. Following members are interested in the PCB ANADIGIT - 1 markus22ch - 2 Need 47 more to go...

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1st September 2011, 06:58 AM	#2
heartwinter diyAudio Member Join Date: Jun 2009 Location: Somewhere on Earth	Got few boards fabricated in advance. Apart from those who had already placed their orders four boards are available for immediate shipping. If anyone interested can send PM immediately with full name, address, paypal ID and number of boards required.

1st September 2011, 07:06 AM	#3
heartwinter diyAudio Member Join Date: Jun 2009 Location: Somewhere on Earth	There will not any any increase in the shipping charge even if two boards are ordered, it will be the same $10.

1st September 2011, 07:53 PM	#4
Jokener O2 GroupBuy addict diyAudio Member Join Date: Sep 2010 Location: Good ol' Germany	Hey, I would be interested to know what design this is, if it is a publicly available design at all. And if not, would it be possible to receive the CAD-files for it in return for a fee? (I know a PCB prototyper and would like to get it in a black/gold flavor.) Of course I would not share the design if that is not intended and I would not manufacture it for others without explicit permission!

2nd September 2011, 04:22 AM	#6
heartwinter diyAudio Member Join Date: Jun 2009 Location: Somewhere on Earth	Here are few boards which I got fabricated in advance and are available for immediate shipping. The components can be easily procured from ebay, farnell, digi-key, mouser, etc. If anyone interested can PM with full name, address, and paypal ID.

2nd September 2011, 06:51 AM	#7
heartwinter diyAudio Member Join Date: Jun 2009 Location: Somewhere on Earth	Mr.Watchara Saladkaew, ANADIGIT from Thailand has paid for one board.

2nd September 2011, 07:07 AM	#8
Frex diyAudio Member Join Date: Nov 2009	Hello, This project seem interesting, but before to buying the circuit-board, i would like to see the schematic. Can you posted it ? Regards. Frex

2nd September 2011, 07:26 PM	#9
tassosk diyAudio Member Join Date: Sep 2008	I have received my boards. Thanks. Nice quality. I have already started populating them. One will be stock, the other for experimentation with Sallas regulators, transformers +N.Pass buffer like my TP Opus or with That1200 + buffer.

2nd September 2011, 07:59 PM	#10
korben69 diyAudio Member Join Date: Nov 2006 Location: Near Lyon	Hi Tassosk Nice to read your results vs Opus. Could you give us some informations about your tweaks (a little bit OT... sorry) PM will be more accurate. Thanks

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