Any verification builds of the psus yet?!
I've done a small batch of the VRDN boards but there seems to be a lot of conjecture on that thread at the moment about the design. It is a conversation way beyond my pay grade so I can only look in and hopefully they are good to go but would be good to have these as back up if needed
I've done a small batch of the VRDN boards but there seems to be a lot of conjecture on that thread at the moment about the design. It is a conversation way beyond my pay grade so I can only look in and hopefully they are good to go but would be good to have these as back up if needed
@jimk04
This is drawback for free design that someone has to put it together first. So far it was Vunce who has done it for you, big thanks to him 🙂 I think he wants to try PSU as well.
If anyone sees a possible error in the PCB, report it and I'll deal with it asap 🙂
This is drawback for free design that someone has to put it together first. So far it was Vunce who has done it for you, big thanks to him 🙂 I think he wants to try PSU as well.
If anyone sees a possible error in the PCB, report it and I'll deal with it asap 🙂
Thanks guys I hope that didn't come across as presumptuous in me letting others doing the leg work. I would love to be able to help out by testing these things but I am new to all this. Some day hopefully.
I want to build this Dac.
Sorry, my english is not very good and i use google translate a lot. Do I understand correctly that the DAC board also has an analog part that can be directly connected to the preamplifier? I have a spdif (coaxial and toslinku) receiver on the wm8804 chip. It has outputs like in the picture.Will it work with DAC?
Sorry, my english is not very good and i use google translate a lot. Do I understand correctly that the DAC board also has an analog part that can be directly connected to the preamplifier? I have a spdif (coaxial and toslinku) receiver on the wm8804 chip. It has outputs like in the picture.Will it work with DAC?
Hi,
Yes it's ok, you need these wires:
-LRCLK
-BCLK
-Data
-GND
The wires should be as short as possible and same length.
Yes it's ok, you need these wires:
-LRCLK
-BCLK
-Data
-GND
The wires should be as short as possible and same length.
I have used the VRDN for the +-12V and it worked great. I am one on the thread trying to get an accurate noise reading on the VRDN. It may be able to be tweaked for better performance, but it is already quiet now.
I also ordered the miro PSU boards, I was using a DC-DC converter for the +-5V, not the best option, but it was still dead quiet.
Adding to the previous @diyiggy reply ... Yes it has analog part and you can connect it directly to the preamp or amp
@jimk04 be sure to use the Rev.A2 parts instead of those listed in the original schematic.
Code:
ID Rev.A Rev.A2
------------------------
R13 15R ZEROHM
C15 6.8N 10N
R21 0R47 0R33
R14 15R ZEROHM
C16 6.8N 22N
R22 0R47 ZEROHM
Code:
ID Rev.A Rev.A2
------------------------
R13 15R ZEROHM
C15 6.8N 10N
R21 0R47 0R33
R14 15R ZEROHM
C16 6.8N 22N
R22 0R47 ZEROHM
My replacement JLSounds stacking DAC boards arrived yesterday so I have made some initial progress with the assembly. Unfortunately I'm waiting for a delivery for the rest of the parts so progress is very limited.
With the replacement boards I made some changes, including adding on the JLSounds configuration resistors (smd too, I surprised myself by actually managing to solder up a couple of boards with them). Anyway, they stack onto the JLSounds board correctly now (that was my previous error).
With the replacement boards I made some changes, including adding on the JLSounds configuration resistors (smd too, I surprised myself by actually managing to solder up a couple of boards with them). Anyway, they stack onto the JLSounds board correctly now (that was my previous error).
Cheers Vunce.
I have some of these modules that I'll probably use for the power supplies;
TPS7A4700 low noise LDO regulator PCB
My boards don't have an I/V stage and I plan to use Borbely tube/mosfet hybrid 'opamp' modules so they'll be separate and will require another power supply, +/-24V, and will probably use a spare VRDN (without the denoiser) for that.
I have some of these modules that I'll probably use for the power supplies;
TPS7A4700 low noise LDO regulator PCB
My boards don't have an I/V stage and I plan to use Borbely tube/mosfet hybrid 'opamp' modules so they'll be separate and will require another power supply, +/-24V, and will probably use a spare VRDN (without the denoiser) for that.
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Guys I have now an Xmos usb thing and also an ak4118 spdif to i2s. Both have mclk outputs. Do I just use the 3 that the dac board needs and forget about mclk
Sounds good NB.
I’m very interested to see how your I/V stage will work out.
Enjoy the weekend!