Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter - Page 212 - diyAudio
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Old 15th January 2013, 12:24 PM   #2111
regal is offline regal  United States
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Quote:
Originally Posted by dvb-projekt View Post
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.
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Old 15th January 2013, 01:48 PM   #2112
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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

Last edited by analog_sa; 15th January 2013 at 01:51 PM.
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Old 15th January 2013, 05:58 PM   #2113
TNT is online now TNT  Sweden
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Originally Posted by hirez69 View Post
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.

/
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Old 15th January 2013, 06:47 PM   #2114
qusp is offline qusp  Australia
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Quote:
Originally Posted by analog_sa View Post
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
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Old 15th January 2013, 07:02 PM   #2115
qusp is offline qusp  Australia
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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.
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Old 15th January 2013, 07:23 PM   #2116
RollE2k is offline RollE2k  Sweden
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Originally Posted by qusp View Post
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?
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Old 15th January 2013, 07:39 PM   #2117
qusp is offline qusp  Australia
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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 =)
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Old 15th January 2013, 07:49 PM   #2118
RollE2k is offline RollE2k  Sweden
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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.
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Old 15th January 2013, 07:53 PM   #2119
qusp is offline qusp  Australia
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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.

Last edited by qusp; 15th January 2013 at 08:04 PM.
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Old 15th January 2013, 07:58 PM   #2120
hirez69 is offline hirez69  Europe
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Originally Posted by TNT View Post
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.
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