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Old 30th December 2008, 11:57 PM   #1
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Default AD1955 Evaluation board schematics

Hi, I need documentation for the AD1955 DAC evaluation board. It is not posted on Analog Devices website, nor could I Google anything. Looking for the schematics etc.

I was going to buy one BUT the price has gone ballistic:

Digi-Key Part Number: EVAL-AD1955EBZ-ND $600 USD (Dec. 30, 2008)
Digi-Key Part Number: EVAL-AD1955EB-ND $230 USD (Mar. 15, 2007) now listed as obsolete/discontinued.
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Old 31st December 2008, 12:21 AM   #2
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hello , i just put it here

& to give you an idea, it happened because of hacks like him
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Old 31st December 2008, 08:15 PM   #3
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Thanks so much.
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Old 10th March 2009, 11:07 AM   #4
bmg1612 is offline bmg1612  United States
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Hey tritosine,

Any idea what kind of current reqs. the board has? Thanks
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Old 10th March 2009, 03:55 PM   #5
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I dont have one but i bet your usual potted toroid is good enough.
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Old 11th March 2009, 07:28 AM   #6
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Quote:
Originally posted by bmg1612
Hey tritosine,

Any idea what kind of current reqs. the board has? Thanks
If it comes through readable

Cheers George
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File Type: jpg cci03112009_00001 x.jpg (80.8 KB, 439 views)
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Old 31st March 2009, 03:35 PM   #7
bmg1612 is offline bmg1612  United States
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Hey george,

thanks for your response. like you I already went ahead and bought the twisted pear PSU. what was the VA rating on the transformer you used with yours? I have a feeling mines too low because im not getting any audio coming out. thanks again.
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Old 31st March 2009, 08:22 PM   #8
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20va

Cheers George
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Old 1st April 2009, 02:30 AM   #9
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File Type: jpg my dac 4 ad1955 x.jpg (79.8 KB, 304 views)
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Old 1st April 2009, 03:30 AM   #10
bmg1612 is offline bmg1612  United States
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hey george,

hmm, i was expecting something higher than 20. mine's 15 and that shouldn't be too much of a difference in terms of current. were there any other problems you ran into with your board? any suggestions for why i might not be getting audio? i think I have all the switches set correctly (proper clock selection, mute off, rotary set for left-justified pcm) and the input receiver LED shows im getting audio in. also the zeroL, and zeroR lights seem to respond correctly to the signal from my cd player (spdif over coax). any ideas? thanks again for your help.

-bert
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