Ian asynchronous I2S and S/PDIF FIFO KIT group buy - Page 53 - diyAudio
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Old 7th August 2012, 07:43 PM   #521
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Join Date: Nov 2003
Location: Bristol
Kit #1 has arrived safe and sound!

Thank you very much Ian, I look forward to trying it out at the weekend!

Best Regards,

James
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Old 8th August 2012, 01:40 AM   #522
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Hi

Just like to let You know that ..

It Is Alive...!!!

Regards
Rosendorfer
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Old 8th August 2012, 02:50 AM   #523
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Mine arrived too !

Now torn between a PCM1704 project (which will require on of those fancy i2s to pcm boards... and a PCM1704 board, wherever they come from), or a synchronous buffalo project ...
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Old 8th August 2012, 03:55 AM   #524
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Good to know they arrive safely. Thanks guys.
Sorry again for some guly XO pins on the Single XO clock board. Please let me know if you really couldn't put up with them .

Regards from Canada

Ian
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Old 8th August 2012, 07:36 AM   #525
cddumat is offline cddumat  Germany
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N1 paid.

Thanks a lot,
Clemens
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Old 8th August 2012, 10:39 AM   #526
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Greetings Ian

I'm getting ready to start testing the gear.

I think I've got this straightened out for going dual mono with my build

The 12s output and clock need to be spliced out to go to the 2 dac inputs. The wires are strongly recommended to be of the same length. Your buf3 adapter kits should be a good fit for this configuration. So one kit would be used to split the sgnal from the fifo/clock gear while 2 kits would be used to connect the 12s signal to the 2 dacs.An extra kits would be required if using sidecar. Does this make sense?

If this is the case, I will have to order extra buf3 adapters and uf.l connectors. Can you supply these items?

other question, does the i2s backdoor support 32bit 384khz signal?

This is the build process I will be using:

1a) build dac with vanilla single dac and ttl input direct to dac
1b) implement spdf fifo kit
2) implement hifiduino controller
3) implement sync/async clock tweak on buf3 dacs
4) implement dual mono configuration


regards.

Last edited by necplusultra; 8th August 2012 at 10:54 AM.
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Old 8th August 2012, 02:03 PM   #527
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Join Date: Dec 2009
Hi,

#18 received ok.
Thank you very much to Ian for this great work.
I will post news about my build when it is time, but not very soon.
The plan is Waveio -> spdif board -> fifo board -> i2s two clocks reclocker -> buffalo III (in sync mode) -> legato 3.

Regards.
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Old 8th August 2012, 04:47 PM   #528
SPWONG is offline SPWONG  Hong Kong
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Hi,

Kit#24 received.

Thanks.
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Old 8th August 2012, 09:00 PM   #529
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Location: Toronto
Quote:
Originally Posted by necplusultra View Post
Greetings Ian

I'm getting ready to start testing the gear.

I think I've got this straightened out for going dual mono with my build

The 12s output and clock need to be spliced out to go to the 2 dac inputs. The wires are strongly recommended to be of the same length. Your buf3 adapter kits should be a good fit for this configuration. So one kit would be used to split the sgnal from the fifo/clock gear while 2 kits would be used to connect the 12s signal to the 2 dacs.An extra kits would be required if using sidecar. Does this make sense?

If this is the case, I will have to order extra buf3 adapters and uf.l connectors. Can you supply these items?

other question, does the i2s backdoor support 32bit 384khz signal?

This is the build process I will be using:

1a) build dac with vanilla single dac and ttl input direct to dac
1b) implement spdf fifo kit
2) implement hifiduino controller
3) implement sync/async clock tweak on buf3 dacs
4) implement dual mono configuration


regards.
Hi necplusultra,

Using a BIII adapter to branch the I2S signals into the two ESS DACs is a very smart idea. I didn't think of it. And there are already two U.FL MCLK output sockets on the dual clock board for the dual mono sync mode.

Yes,you can order the additional BIII adapter PCB and the cables now. Since you are in Canada, the shipping would be only $1- if I mail them as a letter. Please just send the order form to me if you want.

I2S back door support 384KHz, but with the 49.xxxMHz XO, you could get only 128*Fs MCLK, that's no problem for async mode, but might be problem for sync mode with ESS DAC( need 256*fs or more).

Please let me know your progress.

Ian
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Old 8th August 2012, 09:24 PM   #530
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Default Thank you veeery much , Ian !

just finished my FIFO . it`s integrated with dual-mono Opus Dac .... and with these generic XO`s (i`m waiting for 1ppm , -135dB phase noise TCXO`s from ebay...) it sounds unbelievably good (my setup is : PC based linear powered CMP player , BAT VK30 +VK200 and Audio Physic New Tempo) and i must say again : THANK YOU VERY MUCH ,IAN !!!! BTW : where are my rubber rings ?! )))
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