Several forum members and exaU2I users have asked me to produce a modified version of exaU2I for use with PCM1704. A good solution will require two changes to the current device:
I wonder how many of you are using PCM1704 and would be interested to preorder?
- Change in the output format
- Elimination of GMR jitter
I wonder how many of you are using PCM1704 and would be interested to preorder?
Hi, Personnaly I would be very interested in a version of your exa device with 8 output channel of 44100hz PCM or I2S and linux support ( ALSA linux developpers would help you if you contacted them).
And yes I could be interested in PCM1704 but if on a seperate board because I am interested in 8 channel of output meaning several PCM 1704 (probably also in balanced fashion).
And yes I could be interested in PCM1704 but if on a seperate board because I am interested in 8 channel of output meaning several PCM 1704 (probably also in balanced fashion).
The modified exaU2I will be only an interface. The DAC board will be separate. You will be able to connect up to 8 channels and of course you will be able to implement balanced mode PCM 1704.
egberttheone, can you provide more information about the Reclock configuration that you want to implement. I will test it and I will publish the results. I am not familiar with Reclock so I will need some guidance from you.
I don't think anyone will decline this added functionality. As there will be a slight redesign of the board i wonder if a provision for external power instead of USB-derived will be possible via jumper/pad.
Hi exa, i have some q if You dont mind...
1. Does it Mac OSX supported?
2. Does the hardware accept difital USB galvaniv isolation
but on the input (with adum4160...)
{I know that one iso barrier exist at the outputs it is clear from the picture...}
3. is there some posibility to have split I2S bus L/L and R/R ?
thanks
cheers
1. Does it Mac OSX supported?
2. Does the hardware accept difital USB galvaniv isolation
but on the input (with adum4160...)
{I know that one iso barrier exist at the outputs it is clear from the picture...}
3. is there some posibility to have split I2S bus L/L and R/R ?
thanks
cheers
If there will be a PCB upgrade is it possible to add a header / jumpers between the USB connector and the USB hardware parts for 5 volt, gnd, and the D+ and D- signals for easy implementation of USB isolation?
RayCtech, I am not sure if this is a good idea. The new board will deal with galvanic isolation in a different way. There will be no need to isolate the USB input.
Hi Zoran,
For now there is no OS X support. Could you explain in more detail questions 2 and 3? How do you want to use the L/L R/R I2S output?
Cheers,
Exa065
Then it will be interesting to experience how the new galvanic isolation performs.
This is correct, the ASIO input can be configured as L/L R/R or any combination of any channels.
Now I am running "glue logic" I2S splitter to L and R ch
(to feed dual mono sabre)
to be more clear
data order:
normal I2S = 32bit_left-data - 32bit_right-data - 32bit_left-data - 32bit_right-data
I2S left = 32bit_left-data 32bit_left-data
I2S right = 32bit_right-data 32bit_right-data
(sys clk and latch remains the same...)
I think that should not be hard because the datas are alredy in memory
just to "repack" the order of words?
(to feed dual mono sabre)
to be more clear
data order:
normal I2S = 32bit_left-data - 32bit_right-data - 32bit_left-data - 32bit_right-data
I2S left = 32bit_left-data 32bit_left-data
I2S right = 32bit_right-data 32bit_right-data
(sys clk and latch remains the same...)
I think that should not be hard because the datas are alredy in memory
just to "repack" the order of words?
