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I've read some document about jitter.But there is a problem, how does it
effect the performance of audio dac ? In my application , I need to generate
mclks for audio dac , But I could not know whether the clock is clean enough, Is
there any menthod can evaluate it ? 

Thanks !

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Hi,
=A0 yes you can find out jitter in indirect way.
=A0 it could be serious problem if you are capturing the audio in realtime =
and wantd renderer it. you could end up having buffer overrun or underrun.
But if you trying to renderer from the stored media then you are concern is=
=A0clock generation.=A0 you can find out from source clock tolerance i.e cr=
ytal or clock generator it is mention in PPM.
other way is to play pure 1khz sine wave(-dBFs) and mearue using the audio =
precision and find out deviation in frequency and new hamonics.=A0Uou need =
consider perfomance of DAC from data sheet before making any conlcusion.
hope this helps

With regards
Amaresh

From: q...@yahoo.com.cn <q...@yahoo.com.cn>
Subject: [audiodsp] AUDIO jitter
To: a...@yahoogroups.com
Date: Friday, June 12, 2009, 1:01 PM

I've read some document about jitter.But there is a problem, how does it ef=
fect the performance of audio dac ? In my application , I need to generate =
mclks for audio dac , But I could not know whether the clock is clean enoug=
h, Is there any menthod can evaluate it ?=20

Thanks !

=20=20=20=20=20=20

_____________________________________

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