Build thread for Diyinhk ES9018 DAC on Ebay - Page 45 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 14th April 2013, 05:53 AM   #441
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Electrolytic cap polarity....on the board.....

1) What are the polarities for the two 10uf caps to the right and left the 9018 chip ? (when looking at the chip/board printed side up)
I'm assuming these are bypasses for the two +3.3v psu's....so, negative to ground, for both...correct ?

2) I am also assuming the 10uf cap immediately above the chip is also a bypass for the +1.2v regulator....so negative to ground there too. (?)
~~~~
I've figured out the cap polarities for the opamps...

Positive power pins..... (-) to ground.
Negative power pins.....(+) to ground.

I'm using some SMT package 16v/10uf electros' that will fit everywhere (4 mm Dia. x 5.8 mm L x 5.5 mm H)....even next to the 9018 chip. >>>>except for the ADP151 regulator, where ceramics are specified by the manufacturer.

Here are the electrolytics (low ESR) I'm using...... Type AFK

Last edited by redrabbit; 14th April 2013 at 05:56 AM.
  Reply With Quote
Old 14th April 2013, 04:55 PM   #442
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
.....checked the ESS schem.......my above assumptions are correct.
My fault for not seeing that.
  Reply With Quote
Old 15th April 2013, 06:37 AM   #443
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
I use a RME HDSP9632 sound card, with the optional Word Clock card/output.
Is there any method or advantage of implementing/mating this clock signal to this 9018 board or input interface?

Last edited by redrabbit; 15th April 2013 at 06:50 AM.
  Reply With Quote
Old 16th April 2013, 07:55 PM   #444
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Let me try this again.
This is my first venture into digital. I am just a hobbyist.
This is my first DAC project. I realize most of you have built several.
Remember your first DAC venture ?
So I'm asking for a bit of help.
I'm asking my questions in simple form, so that others in my position can also benefit.
My goal is to keep this board/project as "stock" as possible...AD797's throughout, onboard Crystek/950 100mhz clock.

My questions are ultra-basic....mostly routing and hookup.
I'll ask my questions in numbered form, so you can answer them easily.
(mostly yes/no answers)


1) Header "CN2" is for I2S input....correct ?

2) Hearer "CN6" is for SPDIF input ?

3) On those headers, the second row (ground) is for ribbon cable "ground interleaving"...correct ?

4) "Mute" and "Lock" are for LED's which can be routed to a front panel if desired. The "Lock" can be a bi-coloured LED, correct ? (common cathode)

5) What is the 3pin header marked "GND, SDA, SCL" used for ?

6) What is the 2pin "/EN" header used for ?

7) What is the 2pin header marked "X1, GND" used for ? (also has 3 SMD pads....looks like for another LED) ??

8) The "Reset" header....would be for a momentary push-button (if ever needed) ??

9) Can someone suggest a descent SPDIF (toslink + phono plug) ??

10) Can someone suggest a descent USB/I2S converter ?
~~~

I've stuffed most of the board (see pic).
Not "stock" (tweak) are the 10n WIMA caps paralleled with the 100n SMD bypass caps (opposite sides of the board, around the chip) see pic.
(btw....this is my first time soldering SMD parts)
Attached Images
File Type: jpg es9018_board (2 of 6).jpg (1,019.9 KB, 497 views)
File Type: jpg es9018_board (6 of 6).jpg (988.9 KB, 455 views)
File Type: jpg es9018_board (3 of 6).jpg (978.5 KB, 438 views)
File Type: jpg es9018_board (4 of 6).jpg (799.6 KB, 418 views)
  Reply With Quote
Old 16th April 2013, 08:22 PM   #445
glt is offline glt  United States
diyAudio Member
 
Join Date: Oct 2004
1) Header "CN2" is for I2S input....correct ?
Yes
2) Hearer "CN6" is for SPDIF input ?

Some of the pins can be used for SPDIF but it will require that you use the DAC in s/w mode (use Hifiduino for example)

3) On those headers, the second row (ground) is for ribbon cable "ground interleaving"...correct ?
Yes

4) "Mute" and "Lock" are for LED's which can be routed to a front panel if desired. The "Lock" can be a bi-coloured LED, correct ? (common cathode)
Sometimes, both lock and mute can be on.

5) What is the 3pin header marked "GND, SDA, SCL" used for ?
This is for an external controller

6) What is the 2pin "/EN" header used for ?
To enable or disable the clock (for clocks that have enable pin)

7) What is the 2pin header marked "X1, GND" used for ? (also has 3 SMD pads....looks like for another LED) ??
To connect an external clock if you are not using the local clock. Or you could disable the local clock and feed an external clock.

8) The "Reset" header....would be for a momentary push-button (if ever needed) ??
Yes

9) Can someone suggest a descent SPDIF (toslink + phono plug) ??
As it is (without external controller) you can only use I2S or SPDIF but not both. You will connect SPDIF to DATA1 line
What do you mean toslink to phono plug?

10) Can someone suggest a descent USB/I2S converter ?
Both Amanero and diyinhk latest XMOS receivers are excellent choices
__________________
www.hifiduino.wordpress.com
  Reply With Quote
Old 16th April 2013, 08:42 PM   #446
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Thank you GLT.

Quote:
"What do you mean toslink to phono plug?"
I meant ....toslink "and" digital RCA jack inputs (or BNC). One that incorporates both options.


....I'll check your site about a controller.......
What is the degree of difficulty when adding an external controller "?

Last edited by redrabbit; 16th April 2013 at 08:53 PM.
  Reply With Quote
Old 16th April 2013, 09:20 PM   #447
glt is offline glt  United States
diyAudio Member
 
Join Date: Oct 2004
Consumer spdif (~1v) needs to be boosted to 3.3v with something like this: The Buffalo III Digital-to-Analog Converter (Single S/PDIF (or AES-EBU) Level Converter Kit)
For toslink you just need a toslink receiver module like this: TOSLINK Optical Input Module
or one of this and take it apart: http://www.ebay.com/itm/Digital-Opti...21075308720%26


To implemented a controller, just follow the instructions and buy the parts :-)
__________________
www.hifiduino.wordpress.com

Last edited by glt; 16th April 2013 at 09:35 PM.
  Reply With Quote
Old 17th April 2013, 01:10 AM   #448
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
Quote:
Originally Posted by GLT
As it is (without external controller) you can only use I2S or SPDIF but not both. You will connect SPDIF to DATA1 line.
I'm still a bit fuzzy on this....
Is this just how the diyinhk ES9018 board is configured ?....one "or" the other, so that if both are connected...it causes a conflict ?

I see TP has this board....
S/PDIF 4:1 MUX/Receiver Module (using an input selector switch)
...but I see this in the MUX installation guide:
Quote:
You can use a switch or a
microcontroller to set the register. The inputs can be switched at any time. The selected input will be output at
both the I2S and SPDIF outputs.
From what I can see, AMB is using such a setup (with the switch)....but that's into a Buffalo.

If there is a conflict, could a hardware solution be implemented for switching between I2S and SPDIF ?
...switch or relay(s) ?

...or are we back to "To implemented a controller, just follow the instructions and buy the parts :-) " ??....lol

Last edited by redrabbit; 17th April 2013 at 01:17 AM. Reason: brain bleeding
  Reply With Quote
Old 17th April 2013, 02:24 AM   #449
diyAudio Member
 
redrabbit's Avatar
 
Join Date: Oct 2004
I see, the chip has auto-detection, always reverting to SPDIF if data there is present.
http://hifiduino.wordpress.com/sabre32 -LEVERAGING INTERNAL SOURCE SELECTION
Quote:
Of course if you are using a 4 pole switch where you can completely switch out the I2S signal, then keep the internal switch in automatic and yo get the same functionality.
I imagine routing and switching the incoming signal through a hardware relay is not optimal...just guessing.
  Reply With Quote
Old 17th April 2013, 04:52 AM   #450
glt is offline glt  United States
diyAudio Member
 
Join Date: Oct 2004
No need for perfection :-). Do what you feel comfortable with. Once you like diy, it never ends :-)
__________________
www.hifiduino.wordpress.com
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
BUILD THREAD - A New Take on the Classic Pass Labs D1 with an ESS Dac opc Digital Line Level 667 27th August 2014 10:15 AM
High Performance WM8741 Upsampling DAC New Version build thread (show 'n tell too) merlin2069er Digital Source 354 7th April 2013 08:51 PM
Pass D1V3 DAC - build thread spzzzzkt Pass Labs 224 8th December 2012 03:40 AM
Gamma-1 DAC build thread mattmcl Digital Line Level 8 20th January 2012 11:27 PM


New To Site? Need Help?

All times are GMT. The time now is 04:36 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2