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Simple Crystal DAC Output Question
Simple Crystal DAC Output Question
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Old 23rd April 2005, 05:03 PM   #1
shon is offline shon  Spain
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Join Date: Dec 2004
Location: Barcelona
Default Simple Crystal DAC Output Question

If I want to take the output directly off the pins of a Crystal CS4329 DAC, do I have to do anything special?

1. Specifically, if I take +AOUT (or -AOUT for that matter), can I route this directly to the RCA plug, or do I have to add "something"?

2. Do I have to in any way terminate the other output (the one I do not use), or can I just leave the pin floating?

Thanks in advance.
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Old 23rd April 2005, 06:14 PM   #2
dhaen is offline dhaen  Europe
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Location: U.K.
A single output will have DC and noise superimposed on the signal. Try scope'ing the pin and you'll have trouble seeing any audio at all. You might even wipe out AM radio reception in the vicinity!
The recommended differental circuit on the data sheet works quite well
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