DCX2496 mod for Digital OUT x 3 - diyAudio
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Old 18th June 2004, 11:16 AM   #1
Tanto is offline Tanto  Japan
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Join Date: Jun 2004
Location: tokyo
Smile DCX2496 mod for Digital OUT x 3

Hi all
I made SPDIF transmitter board for DCX2496.
It is easy and you can get 3Way digital X-over device at very cheep price.

(1) The signal you need
from AK4393, get these signal with very slender cable, solder with microscope or something.
Pin 3:MCLK?APin 5:BICK?APin 7:LRCK
These signals are common for all AK4393.

Pin 6:SDATA , on the side of AK4393, you can find 10ohm R,
you can get 3 SDATAs from this register's solder easily.

(2)CS8404 configure
PRO=Low, TRNP=Low, M2M1M0=100, I2S mode.
Pullup RST with 10kohm.

(3)CS8404 connection
?@MCLK->MCK, BICK->SCK, LRCK->FSYNC, SDATA->SDATA

(4)SPDIF output is done by TOTX173

(5)5V power is made by 7505, on each CS8404, 9V is supplied from Pin 1 of 7805 on the main PCB. GND is supplied from Capaciter's solder. (maybe direct from power module is better)

Then now you can get 3 SPDIF signal, for DCX2496's ch12, 34, 56.
Do not forget to make DCX2496's configuration to LL-MM-HH.?@

Now I'm using this for connection to 3 units Panasonic SA-XR50(maybe same as SA-XR45 or so).

Tanto
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Old 18th June 2004, 03:06 PM   #2
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Join Date: Feb 2002
Default good job

This has always struck me as an 'obvious' mod for the dcx, and the panasonic units are a perfect match as they will all track volume control from a single remote.

Good job. Any chance you can post pictures?
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Old 18th June 2004, 03:07 PM   #3
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Location: Scandinavia
Nice one

Petter
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Old 18th June 2004, 03:37 PM   #4
tiroth is offline tiroth  United States
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よかったですね。写真を見せてもらいたいんです。
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Old 18th June 2004, 05:28 PM   #5
Tanto is offline Tanto  Japan
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Default Photo1

These are SR50s, it receives 24bit/96kHz.
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Old 18th June 2004, 05:31 PM   #6
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Default Re: good job

Quote:
Originally posted by dwk123

Good job. Any chance you can post pictures?
Uhhh, okay, am I completely out of it. Was the pic attached to the first post there all along and I just missed it? gotta stop posting before I wake up.
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Old 18th June 2004, 05:31 PM   #7
Tanto is offline Tanto  Japan
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Join Date: Jun 2004
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Default Photo2

Total Image from Upside of board.
you don't need switch, just connect M2M1M0 = '100'
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Old 18th June 2004, 05:34 PM   #8
Tanto is offline Tanto  Japan
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Default Photo3

downside of board.
sorry for non schematic and dirty work
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Old 18th June 2004, 05:40 PM   #9
tiroth is offline tiroth  United States
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Must have been in moderation. Especially confusing with the new click-to-see model.

I really like the super-thin adaptors...that has to be good from a parastic inductance perspective. I've never seen these sold before...

Tanto, have you done this kind of thing before with solid-core wire? I have experienced reliability problems in the past, the wire is too stiff and tends to pull off the SMD pads at some indeterminate point in the future. Frustrating. I use small-gauge stranded now.
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Old 19th June 2004, 10:31 AM   #10
Tanto is offline Tanto  Japan
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Default where is my photo??

I'm sorry , I attached photo on post4,6,7
but it is not shown on thread ??
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