My 16-bit 1543 Non-Os DAC

mdlover · 30th August 2003, 05:07 PM

Hi all,

Just completed a new 1543 Non-OS DAC. It uses passive I/V conversion with 8V supply to 1543. There is 3 on-board TL431 shunt regulator.

Passive components includes all BlackGate caps and Riken resistors.

Cheers.

Pics:

mdlover · 30th August 2003, 05:15 PM

Riv is 2k4 and Rref is 1k2. Still under burn-in.

another pic:

miguel2 · 30th August 2003, 05:28 PM

Congratulations, it shure looks way better than mine...

Have you any hum problems?

Miguel

mdlover · 30th August 2003, 05:40 PM

thanks!

there is no hum. did you check the ground connection or the power supply?

or may be you can post some pics here and we can help to solve it.

cheers

Andypairo · 30th August 2003, 05:42 PM

Nice PCB, did you made it yourself?

How does it sound?

Cheers

Andrea

Bricolo · 30th August 2003, 05:44 PM

I hope it sounds as good as it looks

can you post a schematic? (especially the PS)

mdlover · 30th August 2003, 05:54 PM

Thanks all!

Andrea,

Yes, I draw the PCB using CAD and send to the board house.

The sound is good, rich bass and musical. I think it will improve after burn-in.

Bricolo,

The configuration of the TL431 is just the usual way.

I will prepare the sch. and post it here.

Cheers

jleaman · 30th August 2003, 08:44 PM

I think it is time for a new keyboard man. : O )

mdlover · 30th August 2003, 09:29 PM

Hybrid fourdoor · 31st August 2003, 12:48 AM

Quote:

Originally posted by JasonL
I think it is time for a new keyboard man. : O )

Don't feel bad, my handed down MS mouse has a nice yellow tint to it

Anyways how much does it cost to have a PCB made like that? Also how do you find places that do that?

Good job though, it looks very nice.

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30th August 2003, 05:28 PM	#3
miguel2 diyAudio Member Join Date: Jun 2002 Location: Portugal	Congratulations, it shure looks way better than mine... Have you any hum problems? Miguel

30th August 2003, 05:40 PM	#4
mdlover diyAudio Member Join Date: Jun 2003 Location: HK	thanks! there is no hum. did you check the ground connection or the power supply? or may be you can post some pics here and we can help to solve it. cheers

30th August 2003, 05:42 PM	#5
Andypairo diyAudio Member Join Date: Sep 2002 Location: near Milano , Italy	Nice PCB, did you made it yourself? How does it sound? Cheers Andrea

30th August 2003, 05:44 PM	#6
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	I hope it sounds as good as it looks can you post a schematic? (especially the PS)

30th August 2003, 05:54 PM	#7
mdlover diyAudio Member Join Date: Jun 2003 Location: HK	Thanks all! Andrea, Yes, I draw the PCB using CAD and send to the board house. The sound is good, rich bass and musical. I think it will improve after burn-in. Bricolo, The configuration of the TL431 is just the usual way. I will prepare the sch. and post it here. Cheers

30th August 2003, 08:44 PM	#8
jleaman Banned Join Date: Apr 2002	I think it is time for a new keyboard man. : O )

30th August 2003, 09:29 PM	#9
mdlover diyAudio Member Join Date: Jun 2003 Location: HK

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