Was reading the datasheet after I'd asked this and read the bit about HW mode and 12mhz.! Thanks
Thanks guys for he Gerbers, I believe it will looks nicer and sound better than my dil 8 adaptor made with silver wire that look horrible and surely oscillate like a teen before a dancing party after a covid lockdown !
Nah I'm not a big mafioso here, just outside, lol ! Btw the new edition with ufl-l will be hanged with three uf-l ropes in a calm street when I will catch the two futur victims : the new uf-l ad1862 board and a IanCanada Rpi reclocker, isolator, fifo, eggs cooker, crystal cans heater, volcano vibration checker (yes all inclusives) !
I ordered with the camel posting service of the silk road this time, should take 2 or 3 weeks !
@ Ernst : I will pass this time for the opa861, too much projects, I will testing tubes as well this time with 6N23P-EV Reflektor and if good enough will try 6DJ8 or E188CC (if I can find one paired enough without selling my car... ah no, already sold...uh, my bycycle... oh no I need it to go to tje post office... uh maybe my wife - mafioso, lol ! Thanks Ernst again for your proposal -)
Nah I'm not a big mafioso here, just outside, lol ! Btw the new edition with ufl-l will be hanged with three uf-l ropes in a calm street when I will catch the two futur victims : the new uf-l ad1862 board and a IanCanada Rpi reclocker, isolator, fifo, eggs cooker, crystal cans heater, volcano vibration checker (yes all inclusives) !
I ordered with the camel posting service of the silk road this time, should take 2 or 3 weeks !
@ Ernst : I will pass this time for the opa861, too much projects, I will testing tubes as well this time with 6N23P-EV Reflektor and if good enough will try 6DJ8 or E188CC (if I can find one paired enough without selling my car... ah no, already sold...uh, my bycycle... oh no I need it to go to tje post office... uh maybe my wife - mafioso, lol ! Thanks Ernst again for your proposal -)
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@Miro...
... thanks for response. I believe everyone in this community will agree, that DIY is not a good strategy for saving money. In this case it turns out, that I will need to buy the twice meaning a €20,- board for verifying functionality and building your board for fun and hopefully better performance. Have just some heart beating because of the 2 SMD's. I thought the 6 shift registers on the DAC board was enough of this for while.
... thanks for response. I believe everyone in this community will agree, that DIY is not a good strategy for saving money. In this case it turns out, that I will need to buy the twice meaning a €20,- board for verifying functionality and building your board for fun and hopefully better performance. Have just some heart beating because of the 2 SMD's. I thought the 6 shift registers on the DAC board was enough of this for while.
Iggy, I don't mind.
Go your way with tubes and I am curious about your findings. Time will come to start digging into my oldest drawers and pull out some now expensive 6922/E88CC/6(7)DJ8, E182CC, E80CC toobs and some well equiped boards for them. In a more recent drawer I will find some nice Russian tubes as well. Winter can come 🙂
You may start with cheap tubes, simple psu and find if their sound is appealing to you and keep your bike. In my eyes toobs are like record players, after a while one easily can start spending a fortune.
In the meantime I am waiting for a Mouser parcel with a few parts, I still need for the 861 iv. Then I'll give it a try. The Pedja diamond iv is in prep as well. BC transistors are matched and soldered.
Cheers, Ernst.
Go your way with tubes and I am curious about your findings. Time will come to start digging into my oldest drawers and pull out some now expensive 6922/E88CC/6(7)DJ8, E182CC, E80CC toobs and some well equiped boards for them. In a more recent drawer I will find some nice Russian tubes as well. Winter can come 🙂
You may start with cheap tubes, simple psu and find if their sound is appealing to you and keep your bike. In my eyes toobs are like record players, after a while one easily can start spending a fortune.
In the meantime I am waiting for a Mouser parcel with a few parts, I still need for the 861 iv. Then I'll give it a try. The Pedja diamond iv is in prep as well. BC transistors are matched and soldered.
Cheers, Ernst.
....I am took in sandwich between Ireland with Fran and Ernst from Germany of either good experiments...Damn ....
Bycycle sold for a delta plane to escape....rooooohh😀
Bycycle sold for a delta plane to escape....rooooohh😀
E186CC bombing from the sky ? Too bad that rhinoceros suppository became too much expensive...
Sorting out triode pairs ask extra ressources...
Sorting out triode pairs ask extra ressources...
Catherine DAC is getting the beauty
Looks like this DAC will be suspended for a while, due to a digital interference on the output 😡
Hard to say why this is happening
easyDAC is completely silent without interference. Perhaps a solid GND can cause this issue and the solution would be to divide the ground into analog and digital, and connect it under DAC chips (this is done in easyDAC).
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Miro, what happen if you use the OPA861 pcb printed by Vunce with its buffer ? Still have distorsion ? Story to say if the culprit is after or before the dac chip before probing all the vias ???
Is it because of a chineese AD1862 which the distorsion can be seen more easily with the strong buffer ?
Is it because of a chineese AD1862 which the distorsion can be seen more easily with the strong buffer ?
@diyiggy It is digital interference originating from the I2S portion.
I suppose when the power supplies share the same PCB and digital GND plane is not separated from the analog GND, digital interference occurs on the output
This is the last PCB where I didn't separate it, I will be wiser next time 😀
I suppose when the power supplies share the same PCB and digital GND plane is not separated from the analog GND, digital interference occurs on the output
This is the last PCB where I didn't separate it, I will be wiser next time 😀
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@diyiggy It is digital interference originating from the I2S portion.
I suppose when the power supplies share the same PCB and digital GND plane is not separated from the analog GND, digital interference occurs on the output
This is the last PCB where I didn't separate it, I will be wiser next time 😀
It's a 2 layers ? Where do you share the AGND and the DGND ? The Dgnd pin is not on the output side of the chip if I remember ? Humm I don't remember in fact. That's an interesting learning purpose I should try to understand... and looking at this new pcb ! Have the inputs USB chips a standalone voltage rail or did you share the 5V with the AD1862 ?
Hope you sort the issue guys. I'm sure you will.
I have ordered the small spdif only wm8804 pcb and some of the optical pick ups Miro linked to. Will have a few spares.
I have ordered the small spdif only wm8804 pcb and some of the optical pick ups Miro linked to. Will have a few spares.
@diyiggy ... it is 4-layers, 1 layer is signal, 2 layer solid GND (AGND+DGND), 3 and 4 layers are power supplies ... usb chips are powered from the USB power 🙂
@jimk04 We could create it. Do you have a schematic or something for an inspiration? So we don't have to start from scratch and avoid as much errors as possible 🙂
I'm afraid not Miro but I copy here a snippet from the datasheet
And also I found this and so credit to Dimdim here.
http://www.dimdim.gr/diyaudio/spdif-receiver-with-the-wm8805/
It was just a thought Miro. I dont expect you to spend time on it for my benefit.
And also I found this and so credit to Dimdim here.
http://www.dimdim.gr/diyaudio/spdif-receiver-with-the-wm8805/
It was just a thought Miro. I dont expect you to spend time on it for my benefit.
