makin heboh aja nih, sebenarnya mau ikutan GB, but my paypal balance only $20 ...sementara hanya jd pengamat dulu deh....
ane malah gak punya sama sekali. Nanti mo minta tlg temen (ane kasih tunai-nya aja).
Ikutan GangBang aja, bos.... :maho...hehehe (just kidding)
Some questions about DAC End PCB. CS8414 PIN 18 (Serial Port Mode Selector) have separate power supply TL431. Why ?Cricuit and layout of DAC-end ! I finis layout , you se it please!
PIN 22 (Positive Analog Power) supply from +5 Digital power source - Connector J2. It is correct ?
CS8414 PIN 18 (Serial Port Mode Selector) have separate power supply TL431. Why ?
It is not necessary a separate power supply for this pin, VD2 could be connected with VD3 but Quang Hao have decided to separate it, I don't see problems
PIN 22 (Positive Analog Power) supply from +5 Digital power source - Connector J2. It is correct ?
Yes this pin must be at +5v, what you mean ?
It is not necessary a separate power supply for this pin, VD2 could be connected with VD3 but Quang Hao have decided to separate it, I don't see problems
PIN 22 (Positive Analog Power) supply from +5 Digital power source - Connector J2. It is correct ?
Yes this pin must be at +5v, what you mean ?
I have got yesterday these two transformers for this project
LS70-1 0-15X2(0.8A) 0-12X1(0.8A)
R80-55 0-9 X2 (3A),0-250(200mA)
on Ebay shop:
50W R Core Transformer,115V//230V, for Preamp,DAC/R26-x su eBay.it Transformers, Vintage Electronics, Electronics
These should be very good! I will give you a feedback when these will arrive.
LS70-1 0-15X2(0.8A) 0-12X1(0.8A)
R80-55 0-9 X2 (3A),0-250(200mA)
on Ebay shop:
50W R Core Transformer,115V//230V, for Preamp,DAC/R26-x su eBay.it Transformers, Vintage Electronics, Electronics
These should be very good! I will give you a feedback when these will arrive.
If you have two separate 5VDC PSU, named +5V DIG and +5V ANA, why not use Digital PSU on Digital section and Analog PSU on Analog section. And also about use of separate grounding but it is a other topic.
About separate power supply for 18 PIN. I don't see problems me too, but I don't see objective.
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Hey, guy. You mentioned one time that the little beauty tl431 was inserted to manage the power supply separation. And it works perfectly. I don't think any change will help. A language issue in your reading of the challenge?
Hi guys,
I checked Digikey about this DAC chip (AD1865) and they're out of stock. Newark only sells it by bulk.
Where you guys buying your DAC chip? Let me know.Thanks,
Fred
Where can I buy one Ad1865 and one CS8414 on adapter?
Digikey only sells Ad1865 as a minimum of 15
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Hi Quanghao & Audiodesign,
That supply applies to 240Vac, how about for 120Vac?
Do you have a final BOM of this DAC project? I might have missed it, but if you can post the final BOM that would be great. That would help me a lot to start collecting parts.
Please confirm if Paypal was received. I just want to confirm coz' I made a mistake the other day paying another member on a wrong paypal account.
Thanks,
Fred
That supply applies to 240Vac, how about for 120Vac?
Do you have a final BOM of this DAC project? I might have missed it, but if you can post the final BOM that would be great. That would help me a lot to start collecting parts.
Please confirm if Paypal was received. I just want to confirm coz' I made a mistake the other day paying another member on a wrong paypal account.
Thanks,
Fred
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Hi! Fred! hi all
I check my paypal later. I will sent all payment later!
I'm more busy now, please give me sympathy! I will try to help you complete DAC-end with all possible, try to wait for me! Thanks
I don understand this wor*BOM*???
You can se payment to me!
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BOM stands for Bill Of Material
Fully complete list all the materials that used in this DAC (with merk also)
example :
http://www.diyaudio.com/forums/atta...73693387-np-d1-dac-clone-enhancement-bom1.pdf
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