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DAC-END R (ES9018) full assembled board - version 2

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#661
1. atterbud - Option 6 full DAC build with Super I/V output stage in place of standard
2. bsy020 - Option 6 full DAC (standard output) + PCBs for Transformer output
3. Abszero!
4. Gugi 100 (dacboard, output board, chassis)
5. smokingdog
6. feriandas - DAC module + amanero + output stage + transformer + chassis (Complete set: Item 6)
7. flocchini options (1+3+4+5 (DAC +chassis + amanero + transformer))
8. ivigueras: 1 + 2 + 3 (DAC, DD output stage, chassis)
9. Djauweh - Option 9 Complete assembled DAC with Lundahl LL1684 output stage
10. audiomusica - Complete set (option 1+2+3+4+5) assuming this makes a complete kit like option 6 but finally assembled on my own.
11. bamarek - option 6 - complete assembled DAC with LL1684
12. Sugden - (option 9)Complete assembled DAC with Lundahl LL1684 output stage
13. Nicos - DAC module + amanero + output stage + transformer + chassis (Complete set: Item 6)
14. mjensen - (option 9) - complete assembled DAC with Lundahl LL1684 output stage
15.ingemar-(option 9)- complete assembled Dac with Lundahl LL1684 output stage
 
#663
TNT said:
< 0,082ps (82fs) rms impessive!

Hard to measure - how did you do it?
Click to expand...

Hi ..

I have access to an Instrument that can measure Phase Noise level.
The Jitter level is calculated from the measurement.

Below measurement was made at the Clock input of the DAC chip. The Clock Frequency is 100MHz.

Please note: that all measurements are measured on Production boards. No Measurements was made on "selected" boards..

Br
Caad
 

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  • 100MHz_Production_input_ES9018_Va.jpg
    100MHz_Production_input_ES9018_Va.jpg
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Last edited:
#668
Where to find spec, schema and layout plan for the DAC module

I guess this is mainly a question for audiodesign:
I plan to include the DAC module (with Amanero) directly into my Primare Preamp Pre30 (almost as Primare offers for the successor PRE32). There is enough room for the board and maybe I could use the same transformer already built in… The 4-digit LCD I will place in a frame outside the chassis.

Questions:

  • What is the AC power supply spec (consumption) for both mentioned modules?

  • Does this setup have other constraints/disadvantages from your perspective?

  • Where can I find the schema and layout for the DAC module, so I could fix it myself when it brakes sometime?
 
#669
caad said:
Hi ..

I have access to an Instrument that can measure Phase Noise level.
The Jitter level is calculated from the measurement.

Below measurement was made at the Clock input of the DAC chip. The Clock Frequency is 100MHz.

Please note: that all measurements are measured on Production boards. No Measurements was made on "selected" boards..

Br
Caad
Click to expand...

Ok, so that time figure, to which frequency does it relate - 35kHz from Fc?

//
 
Last edited:
#671
TNT said:
Ok, so that time figure, to which frequency does it relate - 35kHz from Fc?

//
Click to expand...


Hi

Sorry I have to correct mysellf..
In the Tech spec "Vc" at 82fsec, is the specification from the Crystek CCHD-575.
The datasheet for the CCHD-575 states 82fsec at 12kHz to 80MHz. (for a 100MHz OSC)

The attached Phase noise measurement in post #663 is made at the Clock input of theES9018 and from 10Hz to 100kHz offset to the 100MHz OSC. At this frequency range the Jitter level is well below the Technical specification "Vc". Actually the Phase noise tester calculated this range to <10fsec.. (so the technical spec sheet Vc is still correct ;-) )

Br
Caad
 
Last edited:
#672
Mas Penk said:
Quanghao/Audiodesign : When the shipping will be started??
Click to expand...
Tensions rise in South China Sea as Vietnamese boats come under attack | World news | theguardian.com

China marine police attack Vietnamese patrol vessels and repeatedly rammed them - YouTube

Event political tensions between Vietnam and China has caused the controller component of my aluminum stranded.

Therefore, I still have not shipped the DAC for you.

All of you, sympathy and more waiting. Thank you!
quanghao
 
#673
1. atterbud - Option 6 full DAC build with Super I/V output stage in place of standard
2. bsy020 - Option 6 full DAC (standard output) + PCBs for Transformer output
3. Abszero!
4. Gugi 100 (dacboard, output board, chassis)
5. smokingdog
6. feriandas - DAC module + amanero + output stage + transformer + chassis (Complete set: Item 6)
7. flocchini options (1+3+4+5 (DAC +chassis + amanero + transformer))
8. ivigueras: 1 + 2 + 3 (DAC, DD output stage, chassis)
9. Djauweh - Option 9 Complete assembled DAC with Lundahl LL1684 output stage
10. audiomusica - Complete set (option 1+2+3+4+5) assuming this makes a complete kit like option 6 but finally assembled on my own.
11. bamarek - option 6 - complete assembled DAC with LL1684
12. Sugden - (option 9)Complete assembled DAC with Lundahl LL1684 output stage
13. Nicos - DAC module + amanero + output stage + transformer + chassis (Complete set: Item 6)
14. mjensen - (option 9) - complete assembled DAC with Lundahl LL1684 output stage
15.ingemar-(option 9)- complete assembled Dac with Lundahl LL1684 output stage(i need to bail out,sorry!!)
 
#674
quanghao said:
Tensions rise in South China Sea as Vietnamese boats come under attack | World news | theguardian.com

China marine police attack Vietnamese patrol vessels and repeatedly rammed them - YouTube

Event political tensions between Vietnam and China has caused the controller component of my aluminum stranded.

Therefore, I still have not shipped the DAC for you.

All of you, sympathy and more waiting. Thank you!
quanghao
Click to expand...

Quanghao,
in this situation perhaps you would consider the shipment with the plastic control, and to send the metal one once it's available which I guess is hard to predict today. I don't know how about other recipients but as for me the further delay is something painfull...
 
#677
1. atterbud - Option 6 full DAC build with Super I/V output stage in place of standard
2. bsy020 - Option 6 full DAC (standard output) + PCBs for Transformer output
3. Abszero!
4. Gugi 100 (dacboard, output board, chassis)
5. smokingdog
6. feriandas - DAC module + amanero + output stage + transformer + chassis (Complete set: Item 6)
7. flocchini options (1+3+4+5 (DAC +chassis + amanero + transformer))
8. ivigueras: 1 + 2 + 3 (DAC, DD output stage, chassis)
9. Djauweh - Option 9 Complete assembled DAC with Lundahl LL1684 output stage
10. audiomusica - Complete set (option 1+2+3+4+5) assuming this makes a complete kit like option 6 but finally assembled on my own.
11. bamarek - option 6 - complete assembled DAC with LL1684
12. Sugden - (option 9)Complete assembled DAC with Lundahl LL1684 output stage
13. Nicos - DAC module + amanero + output stage + transformer + chassis (Complete set: Item 6)
14. mjensen - (option 9) - complete assembled DAC with Lundahl LL1684 output stage
15.ingemar-(option 9)- complete assembled Dac with Lundahl LL1684 output stage(i need to bail out,sorry!!)
16.Gergar-(option 9) - complete Dac with LL1684 + 2 DD output + Op-amp output
 
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