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Old 29th April 2006, 01:20 PM   #1
cruijt is offline cruijt  Netherlands
diyAudio Member
Join Date: Apr 2006
Location: Amsterdam
Default AD1955 Evaluation board how to activate

Hello everybody

Since a few weeks I am the owner of an old AD1955 evaluation board. Problem here is that no information is available how to set twe switches and jumpers to let the board run on my 16 bit 44.1kHz optical output coming from my CD player.
I have the following questions:

1 functions of the mode select switch ( 16 steps rotary type)
2 mode select A and B and their functions
3 J18 jumpers EXT, DIR, DSD , no one is fitted for the moment.
4 Can I run the board without SPI control?

For now I can only see that the lights "left zero" "right zero" can go on and off depending of playing with several settings but no output is coming from the left and right filter out.

Who can help me

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Old 30th April 2006, 12:09 PM   #2
diyAudio Member
Join Date: Mar 2004
Location: UK

Have you tried contacting Analog Devices ?


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Old 30th April 2006, 03:27 PM   #3
cruijt is offline cruijt  Netherlands
diyAudio Member
Join Date: Apr 2006
Location: Amsterdam
Default Eval AD1955

Hello Jon,

Yes , the local distributor has no information. On the Analog website the information is removed.


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Old 1st September 2006, 01:26 AM   #4
hbarki is offline hbarki  Indonesia
diyAudio Member
Join Date: Dec 2003
Location: NoCal

I have the same problem. Use the SPDIF inout and RCA output, no sound. Any luck so far?
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