Termination of unused SPDIF CD output - diyAudio
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Old 10th January 2013, 05:38 PM   #1
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Default Termination of unused SPDIF CD output

Are there any suggestion about termination of unused SPDIF CD output:

a) metal caped
b)shorted or
c)shorted with resistor?

If shorting with resistor which value is most suitable?
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Old 10th January 2013, 06:47 PM   #2
Mooly is offline Mooly  United Kingdom
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It really doesn't matter whether its left unterminated or not. If you do want it terminated though, then I would suggest 75 ohms as that seems to be the standard impedance quoted for SPDIF inputs. But it really won't make any difference.
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Old 10th January 2013, 06:58 PM   #3
DF96 is offline DF96  England
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Yes. Don't short it. Either leave it just as it is, or add a 75 ohm termination. There is no reason to do the latter.
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