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AD1862 PCB layout
AD1862 PCB layout
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Old 27th August 2019, 05:17 PM   #121
mlloyd1 is offline mlloyd1  United States
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Join Date: Feb 2001
Location: Northern Iliinois
AD1862 PCB layout
sorry you lost your gerbers.
any pictures of the finished design at least?

mlloyd1
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Old 2nd September 2019, 10:17 AM   #122
Painkiller is offline Painkiller  Norway
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Yes, it's pretty annoying to have lost all the files. Not really motivated to start from scratch again.

Here are a couple photos. One of the (dusty) unpopulated dac. And one of the populated prototype. It's really compact. I'm surprised at how good it sounds compared to how messy it looks
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Old 17th November 2019, 09:26 PM   #123
Painkiller is offline Painkiller  Norway
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...aaand here's the finished dac in its enclosure. All is diy except the I2SoverUSB receiver. Very happy with the result!!

I haven't heard many different dacs in my setup, but I can definitely say that it's way way better than the Chord Hugo 2 and the Naim DAC, both priced at $2000 USD. Would be interesting to compare it to some higher end dacs.
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Old 18th November 2019, 09:55 PM   #124
pistollero is offline pistollero  Portugal
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AD1862 PCB layout
Quote:
Originally Posted by Painkiller View Post
Yes, it's pretty annoying to have lost all the files. Not really motivated to start from scratch again.



Here are a couple photos. One of the (dusty) unpopulated dac. And one of the populated prototype. It's really compact. I'm surprised at how good it sounds compared to how messy it looks
Nice work. I saw on previous photos that you were using vishay var on riv. What is now your new resistor in use?
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Old 19th November 2019, 12:45 PM   #125
Painkiller is offline Painkiller  Norway
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Quote:
Originally Posted by pistollero View Post
Nice work. I saw on previous photos that you were using vishay var on riv. What is now your new resistor in use?
Thanks!

I ended up with the Rhopoint 5G10 resistor. It's great. The value is 350R right now, because I have such efficient speakers and a high gain transistor amp.

General Resistance 5G10 Mini-Ohm Series | Rhopoint Components
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Old 19th November 2019, 04:14 PM   #126
pistollero is offline pistollero  Portugal
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AD1862 PCB layout
Quote:
Originally Posted by Painkiller View Post
Thanks!



I ended up with the Rhopoint 5G10 resistor. It's great. The value is 350R right now, because I have such efficient speakers and a high gain transistor amp.



General Resistance 5G10 Mini-Ohm Series | Rhopoint Components
Thanks for sharing, Painkiller,

Your work is great inspiration, i never heard ad1862.. i will try it for sure.
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Old 21st November 2019, 12:38 PM   #127
diyiggy is offline diyiggy
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Hello Painkiller,

Nice to hear from you. About R I/V, is there a big différence with the RhoRho 816G 1000R I sent you ;

I suceeded to put ufl- plugs on the previous design, you should keep the 3 x ground with the I2S inputs and also consider Sms full traces for 50 ohms matching.

Take me in for the new board please if you have my adresse yet...I push very far the passive composent tries.
If Smd Sussumu resistor is a good idea. You coule also draw the gerber traces with both the choice of througholes. 1/8 W size is the targett. Also same return about caps , consider please 0805 traces and throughole...will give you some components that do not exist on loser case size...here you should love to reach the Dave from Chord
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Last edited by diyiggy; 21st November 2019 at 12:46 PM.
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