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#461
Balanced output ES9018K2M

rookakoma said:
The 9018k2m has differential (balanced.) output.
DIYINHK use an I/V converter with SE output, actually this is an bal/SE converter I/V stage.
Don't use an another converter to make differential output again!
Fig1. is simple, cheap, and it has good performance.


Hi Rookakoma
Thanks for your post.
I am a novice!!😕
On the backside of the board I see "+DACR-" and "+DACL-". Are these the balanced outputs. Can I easily use these to connect balanced XLR-outputs?
Which ground should I use, 3,3V or 12V?
Joris
Click to expand...
 
#463
gostar123 said:
Hi Jokanok,
"+DACR" and "+DACL-" are right and left channels(connected directly to the 9018k2m). You can use them for balanced outputs
I think that it is best to use GND from 3,3 V, described previously.

Regards
Click to expand...
Thanks for the input gostar123.
Another noob question.
If I use digital volume control, will the balanced XLR-outputs also output the amplified/attenuated analog audio signal?
Joris
 
#465
Driver Signing

livingstone said:
Have somebody tried to install drivers for Win 10? I've tried today, the process of installation is completed successfully, but got an error in device manager "Indicates two revision levels are incompatible" with code 10. :-(
XMOS works properly with Win 7 at my laptop.
Click to expand...

I just saw this post, a few months old, but I haven't seen an answer so for those that could run into this.... On Windows 10... Go into advanced settings and Disable
"Driver Signing" Re down load and you'll have your driver...
I hope this helps, Tim
 
#467
made a shunt noise filter based LM317 reg 3.3v pair PSU

and 12+/- supply capacitive kmultiplier PSU and connected to the DAC boards

Soldered the wires to 3.3V lines and 12v pins.

after power up i see 44.1khz LED blinking
But there is no USB device detection

Do we need to give 3.3v to the XMOS seperately?
 
#468
Approx. two months ago I finally managed to finish the first part of this project:


A generic view (the dac is the first device):

An externally hosted image should be here but it was not working when we last tested it.




The internals of the DAC:

An externally hosted image should be here but it was not working when we last tested it.



In general I am very much satisfied, although I am really interested in any suggestion of an additional iv stage that could be a part of this assembly.
 
#469
I am using the DIYINHK isloated USB tro I2S board. It works perfectly with FooBar, following the instructions provided on the DIYINHK web site. And it sounds good. Playing DSD via DoP is a very satisifying experience, the closet that I have heard digital get to analog.

But has anybody been able to get this board running with JRiver? I am also using Pono Music World (PMW) at home (only becuase I bought a Pono player). Using my internal sound card (EMU1212M), PMW sounds better than FooBar. So, I would like to compare FooBar to PMW through the USB board. But I can't figure out how to configure PMW. PMW is simply a stripped version of JRIver (no video) so i assume that all the audio config is identical to JRiver. I asked DIYINHK support, but they advise that they don't have a version of JRiver.

So, has anybody else out there been able to play JRiver through the DIYINHK board? If so, what is the configuration?

BTW - i need to play everything as DSD (DoP). I can't play PCM through the USB Board. I know that the board is capable of PCM, but I'm not using a DAC... So I want to play DSD files on PMW, and also convert PCM to DSD before I send it to the USB board. That is how I am doing it with Foobar - send DSD as DoP, and convert PCM to DSD. Its easy in FooBar. How do I do this in PMW/ JRiver??

Thanks, Hazard
 
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#470
timlub said:
I just saw this post, a few months old, but I haven't seen an answer so for those that could run into this.... On Windows 10... Go into advanced settings and Disable
"Driver Signing" Re down load and you'll have your driver...
I hope this helps, Tim
Click to expand...

Thanks Tim, your tip really helps. I installed up-to-date build of Windows 10 several days ago, and it works for me now.

kaushik said:
made a shunt noise filter based LM317 reg 3.3v pair PSU

and 12+/- supply capacitive kmultiplier PSU and connected to the DAC boards

Soldered the wires to 3.3V lines and 12v pins.

after power up i see 44.1khz LED blinking
But there is no USB device detection

Do we need to give 3.3v to the XMOS seperately?
Click to expand...

If you use galvanic isolation option, you need to supply power separately. If you connect it to Diyinhk DAC, the power supply is on the dac board and feeds xmos chip and clock.

Regards, Konstantin
 
#471
hazard500 said:
But has anybody been able to get this board running with JRiver?
So, has anybody else out there been able to play JRiver through the DIYINHK board? If so, what is the configuration?

Thanks, Hazard
Click to expand...

Hi Hazard, I use it with Jriver. Standart configuration - just choose your device from drop-down list, that's it. I use wasapi option - as a default. Asio is also available in the list to choose.
hazard500 said:
BTW - i need to play everything as DSD (DoP). I can't play PCM through the USB Board. I know that the board is capable of PCM, but I'm not using a DAC... So I want to play DSD files on PMW, and also convert PCM to DSD before I send it to the USB board. That is how I am doing it with Foobar - send DSD as DoP, and convert PCM to DSD. Its easy in FooBar. How do I do this in PMW/ JRiver??

Thanks, Hazard
Click to expand...

Yes, it is possible. You can set up a conversion from PSM to DSD for all the supported formats. Guess, small differences from foobar in this regard.
 
#472
livingstone said:
Hi Hazard, I use it with Jriver. Standart configuration - just choose your device from drop-down list, that's it. I use wasapi option - as a default. Asio is also available in the list to choose.
Click to expand...
Well maybe I'm just stoopid or something happened in the new release of PMW I got today. I got home tonight, opened Pono Music World and saw there was an update so I updated (20.0.100). I then went through the config as you describe above. Some of the options in the config have changed but all I had to do was select device - DIYINHK USB (Asio) and in DSP menu I selected output as DoP. And guess what - it works perfectly. I don't think I did anything different to before but who knows. In any case, thanks for your reply.
 
#473
livingstone said:
If you use galvanic isolation option, you need to supply power separately. If you connect it to Diyinhk DAC, the power supply is on the dac board and feeds xmos chip and clock.

Regards, Konstantin
Click to expand...

mailed the supplier he says the current is not enough ..I will make one basic PSU with lm1117 to give the 3.3v . May be my way of doing it is wrong '

I have the kmultiplier and fed the +12V to the 3.3V circuits and that is not pulling enough current .
 
#474
I2S to ESC (EIAJ STOP CLOCK) PCB to R2R DAC with schematic

Dear all friend,
I am playing on the famous AN207 stop clock operation,
To verify it's work like it should be.
I compose an i2s data stream to test
The left channel is 16bit 1010101010101010
the right channel is 16bit 1010110011001010
the timing from the oscillscope looks perfect,
There are BCK after the WCK go low latch signal.
it should meets the PCM1704 stopped clock operation requirement

Let me test it on as more R2R DAC as before release😱
 

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#475
Yellow: LATCH for left and right DAC
Cyan: DATA for left and right DAC
Purple: Right clock
Blue: Left clock

The original design uses NAND gate, the left clock has ~20ns delay to the right clock when using 74HC logic, it can be read from the above oscilloscope capture.

R2R IC like AD1856 is output on the falling edge of latch signal, not based on BCK, this delay will not causes problem. For PCM1704, the output is on the second bck following the latch signal, the delay on the left and right clock will causes 20ns different on the left and right channel, it's smaller than 1/100 phase different even at 384khz sample rate, although I doubt it is listenable, but there is never an enough for people in here. The design is just revised to sync the left right clock and eliminated the nano second level output delay.
 
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#476
DONE!
Welcome to build and try yourself!
The schematic is free for personal use!
The serious shortcoming of the original AN207 is it do not has reclock and it assumes BCK=32xLRCK from the i2s source. But nowadays, all I2S source is BCK=64xLRCK.
The below circuit is not only verified by ear and it is also verified by oscilloscope using a composed i2s data stream to guarantee the output is bit perfect and jitter free. The information for how to compose an i2s stream can be found here.
http://www.diyaudio.com/forums/digi...eam-verify-real-bit-perfect-oscilloscope.html

i2sad1856.jpg
 
#477
spdif

Jokanok said:
Hi

I am very tempted to order the full DAC (DAC, USB receiver and power supplies) but I also need to be certain if I can connect simultaneously the USB receiver and a Toslink input.
On the DIYINHK website is stated that the input labeled "SPDIF IN" can be used to directly connect a SPDIF optical receiver(Toshiba TORX147 or equivalent).
However the pictures published on the DIYINHK-website are not clear in this regard. I think the picture of the backside of the board does not conform with the picture of the upside, and I also cannot see how the Toslink could be directly connected to the DAC-board.
I send DIYINHK a mail raising the exact same question.
When I receive a clearcut answer, I will certainly post again.
Did you in the meantime found the answer?

Joris
Click to expand...
this is what I've received from diynhk about spdif:

If you do not need to switch between i2s and spdif, the es9018k2m can work only in spdif mode, the spdif will need to be connected to the 20 pin header labelled BCK
 
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