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bin_cl
2011 Apr 12
0
Why most AC97 soundcard has different sample rates of of capturing and rendering?
...page 23, clocking for Multiple Codec Implementations, it is said that "To keep the system synchronous, all Primary and Secondary Codec clocking must be derived from the same clock source, so they are operating on the same time base. In addition, all AC-link protocol timing must be based on the BIT_CLK signal, to ensure that everything on the AC-link will be synchronous.".
In Figure 8. Controller to Multiple Codec connections at page 21, you can also find that AC97 controller and all Codecs share the same SYNC and BIT_CLK signal.
So anyone could give me more details for the reason of misma...