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Old 17th August 2010, 10:36 PM   #21
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Quote:
Originally Posted by quanghao View Post
I can sell all resistors for this DAC!
Would you care to post a price on all resistors? I can move on to other parts.
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Old 17th August 2010, 10:37 PM   #22
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Strosek,

Would you mind sharing your BOM with links to suggested components (if it's not too much trouble)?

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Originally Posted by Strosek View Post
Quanghao, the circuit for SSHV posted above lists for D5 & D6 - 1N4142A but the BOM (on page 179 of the original thread) says 1n4172?

I suspect the part we want here is 1N4742 or 1N4742A a 1W 12V Zener Diode....

Is this correct and if it is could you please make the corrections to the circuit so others don't have a problem.

Thanks!
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Old 18th August 2010, 01:16 AM   #23
Strosek is offline Strosek  Canada
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Quote:
Originally Posted by parodielin View Post
Strosek,

Would you mind sharing your BOM with links to suggested components (if it's not too much trouble)?
If I had one I'd be happy to share It but all I did was use Quanghao's BOM and I just held off on ordering parts that I wasn't sure about ie. the diodes I just posted about.

I sourced most of the parts from Mouser, Digikey and just a few things off ebay.

I'm 95% done... I held off on the diodes and power supplies which I'm hoping to get from Bud P if he ever responds to my PM's.

If you need specific assistance with a certain parts please PM directly and I'll see what I can do as I do have many extras.

Thanks!
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Old 18th August 2010, 02:46 AM   #24
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measured parameters of I / V stage DAC-ASH
Attached Images
File Type: jpg Measures IV stage DAC ASH.jpg (445.4 KB, 855 views)
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update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
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Old 18th August 2010, 03:32 AM   #25
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Quote:
Originally Posted by parodielin View Post
Would you care to post a price on all resistors? I can move on to other parts.
Hi! you see it:
CCF50
Vishay Dale
Metal Film Resistors, Industrial, 1 % and 5 %
http://www.vishay.com/docs/31014/ccf50.pdf

For DAC-ASH
470R x 1
75 x 1
560 x 1
33 R x 6
10 R x 6
47R x 6
100 R x 6
220R x 6
Total: 10$
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update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
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Old 18th August 2010, 03:50 AM   #26
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Thanks for the link and price!

One quick question, in the BOM, there are 1/4W, 2W right next to resistors. I assume these mean power rating of resistors. The spec of CCF50 says it's 0.33W so it can handle 1/4W OK but how about "2W" on the 33 ohm resistor?

Quote:
Originally Posted by quanghao View Post
Hi! you see it:
CCF50
Vishay Dale
Metal Film Resistors, Industrial, 1 % and 5 %
http://www.vishay.com/docs/31014/ccf50.pdf

For DAC-ASH
470R x 1
75 x 1
560 x 1
33 R x 6
10 R x 6
47R x 6
100 R x 6
220R x 6
Total: 10$
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Old 18th August 2010, 03:56 AM   #27
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Quote:
Originally Posted by parodielin View Post
Thanks for the link and price!

One quick question, in the BOM, there are 1/4W, 2W right next to resistors. I assume these mean power rating of resistors. The spec of CCF50 says it's 0.33W so it can handle 1/4W OK but how about "2W" on the 33 ohm resistor?
Yes! 33R use
VISHAY / DALE RN65D SERIE : 75R// 49R
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update 06/14/2013 :http://www.audiodesignguide.com/DAC32/index2.html
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Old 18th August 2010, 06:25 AM   #28
hotzman is offline hotzman  Romania
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5. Resistor

Resistor 1/2W 3.3 Ohm x 1 R7
47 Ohm x 2 R9,R10
200-220 Ohm x 1 R13,R2,R6
6.8K Ohm x 1 R14

On PCB R13 6K8!
R14 200-220Ohm!
which version is correct? (scheme corresponds PCB)
Thank you!
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Old 18th August 2010, 06:39 AM   #29
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Quote:
Originally Posted by hotzman View Post
5. Resistor

Resistor 1/2W 3.3 Ohm x 1 R7
47 Ohm x 2 R9,R10
200-220 Ohm x 1 R13,R2,R6
6.8K Ohm x 1 R14

On PCB R13 6K8! = 6.8K
R14 200-220Ohm! = 200 or 220R
which version is correct? (scheme corresponds PCB)
Thank you!
No correct!
Thanks
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Old 19th August 2010, 12:59 AM   #30
Strosek is offline Strosek  Canada
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Quote:
Originally Posted by quanghao View Post
No correct!
Thanks
Please explain.... Which is correct? I don't understand?

THX
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