Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter

[regal]

Originally Posted by dvb-projekt

It was about the max. usable sampling rate!

This is a valid question/issue. I feel like I've been beating a dead horse in both threads but a true high class transport needs a 16 bit I2S, ie 32fs, the original standard I2S, not the hack standard phillips came up with for 24-32 bit I2s.

[analog_sa]

Got some Crystek CCHD-957s. Now i am probably a bit stupid but how does one solder these to Ian's boards without shorting the output pins. Ian's picture does not make it any clearer.


http://www.diyaudio.com/forums/attac...ithadapter.jpg

[TNT]

Originally Posted by hirez69

Hi Ian

would you confirm that the DualXOboard can operate with 90.3168 MHz and 98.304 MHz XO?

Waiting for the Si570 clock board, I would like to try the following XO:

FXO-HC736-98.304 Fox Electronics | FXO-HC736-98.304-ND | DigiKey


Thanks
hirez69

That clock will not give you any "hirez" results - I bet Ians generic clocks are better or at least s good.

/

[qusp]

Originally Posted by analog_sa

Got some Crystek CCHD-957s. Now i am probably a bit stupid but how does one solder these to Ian's boards without shorting the output pins. Ian's picture does not make it any clearer.


http://www.diyaudio.com/forums/attac...ithadapter.jpg

there is no copper on the corners of the clock underside, just center it as best you can

[qusp]

RollE2k, I'm having trouble following you, but its clearly not going to work. the dual XO bopard doesnt just work as a standalone reclocker for any signal you send to it.

[RollE2k]

Originally Posted by qusp

RollE2k, I'm having trouble following you, but its clearly not going to work. the dual XO bopard doesnt just work as a standalone reclocker for any signal you send to it.

Ok, that was a bummer then. Not even if you isolate the i2s before you send it to the XO-board? you have to run through the fifo?

[qusp]

the dual XO board doesnt just work as a standalone reclocker for any signal you send to it.

rephrasing the question doesnt change the answer =)

[RollE2k]

But how does the XO-board work then, if it's not only isolated i2s. I know the FIFO buffers the signal and sends to the XO-board, but what difference does the FIFO board have except that it buffers, that makes it impossible to send a isolated i2s into the XO?

I understand that you say it don't work - but my question now is rather why it doesn't work.

[qusp]

because the clock board is controlled by the fifo main board and its input

its possible you could send it some 48khz audio directly before switching to fool it into staying on 48khz then send it movie data. possible, Ian will have to answer that. but honestly thinking up some mechanical system that may be kludged to work in theory and making something work in reality could easily be very different.

[hirez69]

Originally Posted by TNT

That clock will not give you any "hirez" results - I bet Ians generic clocks are better or at least s good.

/

I agree with you: that clock doesn't show "pyrotechnic" performance ,
but I don't see many alternatives for those frequencies, Ian's generic clocks included.

For "hirez" results we need Si570 board.