Ian asynchronous I2S and S/PDIF FIFO KIT group buy - Page 56 - diyAudio
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Old 13th August 2012, 11:51 AM   #551
hirez69 is offline hirez69  Europe
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Default Low Phase clock

Quote:
Originally Posted by andrea_mori View Post
Hi all,
I would like to suggest a way about clock, since it will influence heavily the performance of the FIFO buffer and all other devices synchronized with it.

The Crystek CCHD-957 seems to be the better choise, BTW it's not a very low phase noise device. In the datasheet it shows -97dBc/Hz@10Hz, but a very low phase noise oscillator could be at leat -110 or better -120dBc/Hz@10Hz, or -85/90 dBc/Hz@1Hz.

So, if many folks were interested, and if it were possible to identify the optimal frequency useful for all, we can think to make a group buy to get a very low phase noise crystal, that's an SC-cut crystal, from Bliley, Croven or so. Then build a simple very low phase noise oscillator.
Not sure Bliley or other SC-cut crystal manufacturers will be interested on our request, but if we reach a decent number, we could try.

Let me now if anyone was interested.

Andrea
Hi, Andrea

I'm seriously interested.

Please let me know.

hirez69

iously
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Old 13th August 2012, 12:03 PM   #552
hirez69 is offline hirez69  Europe
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Default Received

#27 has arrived,

many thanks, Ian

hirez69
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Old 13th August 2012, 05:04 PM   #553
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Hi Ian,

#11 juast arrived. Thanks.
When do you think you will be ready for the i2S/PCM converter group buy?

hirez69,
if other folks (many I mean) would interested in, I could ask Bliley for an SC-cut crystal. So, I ask all member in this thread (and all in the forum) to post their interest, indicating the frequency.

Andrea
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Old 13th August 2012, 07:14 PM   #554
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Quote:
Originally Posted by andrea_mori View Post
Hi Ian,

#11 juast arrived. Thanks.
When do you think you will be ready for the i2S/PCM converter group buy?

hirez69,
if other folks (many I mean) would interested in, I could ask Bliley for an SC-cut crystal. So, I ask all member in this thread (and all in the forum) to post their interest, indicating the frequency.

Andrea
Sounds good Andrea. I'm waiting for your good news.

I almost finish the fpga design of the i2s to pcm daughter board. I'll do some test the evaluation the next. If more then 30 people want it, I can set up a GB. But I'm not sure if there are enough NOS guys.

Regards,

Ian
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Old 13th August 2012, 07:17 PM   #555
cddumat is offline cddumat  Germany
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Quote:
Originally Posted by iancanada View Post
I almost finish the fpga design of the i2s to pcm daughter board. I'll do some test the evaluation the next. If more then 30 people want it, I can set up a GB. But I'm not sure if there are enough NOS guys.
So maybe just start a list of people interested in this:

1) cddumat

Clemens
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Old 13th August 2012, 08:34 PM   #556
BDL is offline BDL  Romania
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#46 has arrived.
Thank you very much Ian!

Im interested in the I2S to PCM daughter board.
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Old 13th August 2012, 08:56 PM   #557
BDL is offline BDL  Romania
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Default I2S to PCM daughter board GB interest

1) cddumat
2) BDL
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Old 13th August 2012, 09:23 PM   #558
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Quote:
Originally Posted by iancanada View Post
Sounds good Andrea. I'm waiting for your good news.

I almost finish the fpga design of the i2s to pcm daughter board. I'll do some test the evaluation the next. If more then 30 people want it, I can set up a GB. But I'm not sure if there are enough NOS guys.

Regards,

Ian
Ian,
count me for 3 boards.
Andrea

1) cddumat
2) BDL
3) andrea_mori * 3
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Old 14th August 2012, 12:46 AM   #559
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Quote:
Originally Posted by andrea_mori View Post
Ian,
count me for 3 boards.
Andrea

1) cddumat
2) BDL
3) andrea_mori * 3
Thanks Andrea.

Ian
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Old 14th August 2012, 01:02 AM   #560
SPWONG is offline SPWONG  Hong Kong
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Default I2S to PCM daughter board GB interest

1) cddumat
2) BDL
3) andrea_mori * 3
4) SPWONG

Thanks.
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