ESS Sabre Reference DAC (8-channel) - Page 99 - diyAudio
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Old 11th September 2008, 03:53 PM   #981
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Zoran,

Basically the part comes up in I2S with the 4 data input lines associated as four stereo pairs.

Therefore if you parallel the 4 data lines and the 4 positive and 4 negative outputs you basically end up with a stereo unit.

You can then use the part in either voltage mode or current mode depending on the output circuit you devise.

Thanks
Gordon
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Old 11th September 2008, 09:08 PM   #982
Zoran is offline Zoran  Serbia
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Location: Belgrade
Thanks...
I check the datas again
not much about I2S input...
*
so I persume next:
(because, dacs output nested on power supply pins marked L/R)
*
output (every dac has differential outs...)
DAC 1,3,5,7 = Left
DAC 2,4,6,8 = Right
*
TRUE or FALSE ?
*
*
input I2S (UP to 24bit) or DSD
*
pin
51 GND

52 dsd data8
53 dsd data7
54 dsd data6

55 I2S data dac7/dac8 dsd data5
56 I2S data dac5/dac6 dsd data4
57 I2S data dac3/dac4 dsd data3
58 I2S data dac1/dac2 dsd data2

59 I2S L/R CLK dsd data1

60 I2S BCLK dsd bit clock
*
TRUE or FALSE ?
*
All I2S data pins shoul be connect together ?
*
thanks
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Old 12th September 2008, 04:33 AM   #983
JinMTVT is offline JinMTVT  Canada
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any of you guys thought about adding the ESS chip to the end of the DCX unit ?

would it be easy to achieve?
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Old 13th September 2008, 09:46 AM   #984
Zoran is offline Zoran  Serbia
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Someone please
take a look
about the
*
I2S INPUT DATAS
DAC L/R OUTPUTS
?
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Old 14th September 2008, 02:08 PM   #985
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Quote:
Originally posted by Russ White
Hey guys,

I have a couple DACs running now (and 4 different I/V stages so far), so I can A/B pretty easily.


Cheers!
Russ

Can you please explain why the Buffalo board will not lock onto signals greater than 48k? I have your made up board with Ivy.

You advised in a post that the Notch Delay Switch should be Low. However, I can hear distortion when so set. have I misunderstood?

Fred
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Old 14th September 2008, 02:13 PM   #986
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Anybody had the time to test the Sabre DAC with a transformer replacing the i/v stage yet? If so, please post a schematic and indicate what type of tranny you have used.
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Old 14th September 2008, 02:15 PM   #987
matejS is offline matejS  Slovenia
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Quote:
Can you please explain why the Buffalo board will not lock onto signals greater than 48k?
It does, I got it locked at 192kHz (and even more).

Cheers,
Matej
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Old 14th September 2008, 02:30 PM   #988
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Quote:
Originally posted by fmak



Can you please explain why the Buffalo board will not lock onto signals greater than 48k? I have your made up board with Ivy.

You advised in a post that the Notch Delay Switch should be Low. However, I can hear distortion when so set. have I misunderstood?

Fred

FMAK, I think you are confusing the buffalo for the PCM2707 board we carry. The PCM2707 USB moduel is not capable of more than 48khz.

The ESS chip on the Buffalo on the other hand can do any sample rate from 32khz to 192khz. I use it for 192khz material every day.

Switch 3 should indeed be low. I would have to see your setup to know if something is wrong.

Cheers!
Russ
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Old 14th September 2008, 03:09 PM   #989
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Quote:
Originally posted by Russ White



FMAK, I think you are confusing the buffalo for the PCM2707 board we carry. The PCM2707 USB moduel is not capable of more than 48khz.

The ESS chip on the Buffalo on the other hand can do any sample rate from 32khz to 192khz. I use it for 192khz material every day.

Switch 3 should indeed be low. I would have to see your setup to know if something is wrong.

Cheers!
Russ
Russ

No confusion; I don't have the usb board.

Setup:

spdif input to Buffalo which spdif switch on, all switches high as in as in maual Rev 0.2.

Output via Ivy.

Works only on 44.1k and 48k inputs. Lock light does not come on with 88.2k or 176.4k inputs. Have not tried 96k yet.

Also, if reset is enabled, then a reboot is needed to re-enable lock!

What's wrong???

Fred
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Old 14th September 2008, 03:25 PM   #990
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FMAK,

Honestly, I have no way of knowing what is wrong without having my eyes/hands on your gear, but my first suspicion is the SPDIF signal itself. Perhaps try a different source? Are you using coax? If so is it properly terminated?


For normal operation with the stock firmware:

Reset should be left open.

Address should be left open.

Cheers!
Russ
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