A nice dac to complement the Aleph-X.

[dggs]

I didn´t know that it´s such an issue to get MAT´s in the US!

You can get MAT02 in US for a whooping $22.24 each from Nxxxxk Electronics. (Don't know if it's allowed to post distributor name here?)

[Blitz]

I would take as well a pair of boards.

All the best.

[fschlenk]

Hi list,

I am looking for good opportunities to buy:
1. 11.2896 Mhz Osci.
2. 2*7.5V / 36 VA Transformer

in Germany.

Please let me know.

Thanks

F

[pquadrat]

I got my 11.2896 Mhz crystals from Elso.

For the transformer, 2*6V should work even better, because of less heat from
the regulators.


-Peter

[Coulomb]

Hello Paolo, I would be interested in this project. Is the board a stereo DAC or would I need two of them for Stereo? Can the I2s output from a CDPRO2 Philips Drive be fed into this DAC?

Anthony

[Penguin]

I am looking at the D1 design and it looks to be a perfect design to replace the HDAM based analog stuff in that player. What would i need to do to make the design work off of +-12V supplies?

dee
;-D

[OliverD]

Originally posted by Penguin
I am looking at the D1 design and it looks to be a perfect design to replace the HDAM based analog stuff in that player. What would i need to do to make the design work off of +-12V supplies?

The D1 output stage wouldn't run from 12V supplies and cannot easily be changed to work from rails that low. The changes necessary would include changes in topology and/or swapping the FETs with BJTs.

I think installting an extra power supply in your CD player is the best way.

[promitheus]

AMT Freak do you have an email. I would like to ask you something about AMT drivers.
You can email me at promitheus@web.de

[Penguin]

Hi AMT,

The D1 output stage wouldn't run from 12V supplies and cannot easily be changed to work from rails that low. The changes necessary would include changes in topology and/or swapping the FETs with BJTs.

I need to see if there is enough room in the SACD 1000 to do this. The player has CS 4397 DACS which put out balanced audio. Would the design tolarete the 2.26V DC offset coming out of the DAC or do i need to decouple with a CAP. Also can one increase the input impedance to say 470K to reduce the size of the cap needed?



dee
;-D

Ps image of the DAC circuitry in the SACD 1000 is on my ftp site
ftp://ftp.charm.net/pub/usr/home2/dc...1000%20DAC.jpgDAC Circuitry in the SACD 1000

[OliverD]

Originally posted by Penguin
The player has CS 4397 DACS which put out balanced audio. Would the design tolarete the 2.26V DC offset coming out of the DAC or do i need to decouple with a CAP.

As far as I know, the CS4397 is a voltage output DAC, whereas the Pass D1 circuit basically is a cascode stage with current input... The good news is you can forget about the supply voltage problem