Where can I find NPC digital filter chip "SM5843A" - diyAudio
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Old 16th March 2005, 03:05 AM   #1
aht is offline aht  Thailand
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Default Where can I find NPC digital filter chip "SM5843A"

After I succesfull to built SDS TUBEDAC with CS8414+SM5843A+PCM63P+6DJ8 SRPP there are a lot of my friends like this SDS TUBEDAC but I can't find SM5843A enought for many people (4-5) and I can't contact designer of this SDS TUBEDAC (Sheldon Stroke)

I'll change PCM63P to PCM63PK how difference both P & PK ?

I'll change 6DJ8 SRPP to 12AX7 SRPP how difference both 6DJ8 & 12AX7 for this schematic ?

If I want to use SM5842 (or SM5847 from tentlabs) instead SM5843A how do I convert pins ?

There is some missing design on SDS TUBEDAC PCB if any body want to know can email me ,too (My attached file look like original design I received it from my chinese friend. He modofied SDS TUBEDAC to his procucts)

Thank you DIYAUDIO for sharing our experience
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Old 16th March 2005, 08:08 AM   #2
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Default Sm584x

Hi AHT

It is good to see that those SM5843 chips you bought from me worked out well for you.

If you need more for your friends - I still have 8 left.

If you are looking for SM5482APT - well, I have 2 of those.

Send me an email like before.
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Old 16th March 2005, 04:16 PM   #3
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Default Thanks FIN

I ordering PCM63PK from Mr.CCPOON. (Monarchy Audio sales)
I don't know does he has a mount of PCM63PK.
If he has 16*PCM63PK I'll order your 8*SM5843A.

Thanks for your reply
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Old 16th March 2005, 10:13 PM   #4
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When I asked him a while back - he said that he had hundreds of PCM63PK in stock.

I might get some some as well.
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Old 17th March 2005, 02:19 AM   #5
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Thumbs up Cool !!! Hundreds

Great !!! CCpoon have hundreds and you also have hundreds

OK.Do you remember my friend (Miss. Jarumon from Thailand) she ever ordered your 2*SM5843A please contact her for details to send all chips (8*SM5843A) price & shipping to Thailand (email to her for net price)

Thank you very much
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Old 17th March 2005, 02:29 AM   #6
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OK - I have sent her an email

BTW - you work on the DAC looks good.

How does it sound?
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Old 17th March 2005, 02:55 AM   #7
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Cool Hard to explain...(when compare with assemblage2.6)

After I succes to built I use it compare with sonicfrontier assebblage2.6(PCM1704K)?!? it same same in sound stage (I think SDS get more air because it use 6DJ8 onoutput) now I want to change 6DJ8 to 12AX7 for increase dynamic & accent.

If you have any free time I suggest you to build this DAC
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Old 17th March 2005, 02:59 AM   #8
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Free time is the problem

Where did you get the PCB?
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Old 17th March 2005, 02:59 AM   #9
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Talking fix error

assebblage=assemblage
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Old 17th March 2005, 03:03 AM   #10
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Thumbs up PCB FROM SDS WEBSITE

I'll send you a link.

http://www.quadesl.com/dac.shtml

I hope that you also to build

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