ÎÒµÄ1865NOSDAC.Lrak.2

xiaolong · 16th April 2005, 04:23 PM

Meet this DAC's audition
My girl friend is said . Like having exchanged the small plate . Sound ( my girl friend does not understand sound ) that it is very beautiful

Bernhard · 16th April 2005, 06:28 PM

Hi,

are you happy with CCa ?

quantran · 17th April 2005, 03:15 AM

When are you going to market your product? In complete kit form? Furnished PCB?

digi01 · 18th April 2005, 02:07 AM

xiaolong is my friend.we have worked on team on the other projects.

to Bernhard
he work for a UPS company, designer.

Quote:

When are you going to market your product? In complete kit form? Furnished PCB?

PCB only,he has been busy

sch file available.

digi01 · 18th April 2005, 02:52 AM

sch file,PDF vresion

kkchunghk · 21st April 2005, 12:31 PM

Hi,

Looking at the schematic, the 74HC02 is sending inverse signals of Sdata and Fsync to the right channel of AD1865 and normal ones to the left. I've seen it done in a double DAC setup with balanced output. But I don't quit understand what the data structure is in an un-balanced setup such as this one. Explanation in simple English is much appreciated.

Cheers,

K K

philbyx · 22nd April 2005, 06:35 AM

Quote:

Originally posted by kkchunghk
Hi,

Looking at the schematic, the 74HC02 is sending inverse signals of Sdata and Fsync to the right channel of AD1865 and normal ones to the left. I've seen it done in a double DAC setup with balanced output. But I don't quit understand what the data structure is in an un-balanced setup such as this one. Explanation in simple English is much appreciated.

Cheers,

K K

No, No...

The same data on left and right. Only fsync is inverted between left and right.
This is the classical Audionote schematic.
We spoke here about this, and the nor gates could be replaced by simple inverters without major change in the final result.

Nothing very original here : I/U by a resistor, gain with a common cathode and cathode follower for the output impedance...
ECC88 I think, if we consider the psu caps : 50V + 50V, then B+<100V.

Philippe

MONTEFIORE · 15th June 2007, 12:10 PM

is your dac avaible as a kit
and how much
best regards
A MONTEFIORE
FRANCE

MONTEFIORE · 15th June 2007, 12:57 PM

dear sir do you know where i could buy AD 1865N-K
Many thanks
A MONTEFIORE
FRANCE

16th April 2005, 04:23 PM	#1
xiaolong diyAudio Member Join Date: Jul 2004 Location: China Shenzhen	ÎÒµÄ1865NOSDAC.Lrak.2 Meet this DAC's audition My girl friend is said . Like having exchanged the small plate . Sound ( my girl friend does not understand sound ) that it is very beautiful __________________ www.audio-sz.com http://www.audio-sz.com/UploadFile/2...1194429342.jpg

17th April 2005, 03:15 AM	#3
quantran diyAudio Member Join Date: Apr 2004 Location: Hanoi	When are you going to market your product? In complete kit form? Furnished PCB? __________________ Quan Tran

21st April 2005, 12:31 PM	#6
kkchunghk diyAudio Member Join Date: Oct 2004	LOGIC Hi, Looking at the schematic, the 74HC02 is sending inverse signals of Sdata and Fsync to the right channel of AD1865 and normal ones to the left. I've seen it done in a double DAC setup with balanced output. But I don't quit understand what the data structure is in an un-balanced setup such as this one. Explanation in simple English is much appreciated. Cheers, K K

15th June 2007, 12:10 PM	#8
MONTEFIORE diyAudio Member Join Date: Feb 2007 Location: sucy/france	dac is your dac avaible as a kit and how much best regards A MONTEFIORE FRANCE

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16th April 2005, 06:28 PM	#2
Bernhard diyAudio Member Join Date: Apr 2002 Location: Munich	Hi, are you happy with CCa ?

18th April 2005, 02:52 AM	#5
digi01 diyAudio Member Join Date: Mar 2003 Location: BEIJING	sch file,PDF vresion

15th June 2007, 12:57 PM	#9
MONTEFIORE diyAudio Member Join Date: Feb 2007 Location: sucy/france	dear sir do you know where i could buy AD 1865N-K Many thanks A MONTEFIORE FRANCE

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