Datasheet

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Kit Operation
Figure 6. Audio Interface Tab
Along the bottom of this tab are controls for choosing the BLCK and WCLK as being either inputs or
outputs, as well as options for tristating the DOUT line when there is not valid data and transmitting BLCK
and WCLK when the codec is powered down.
Re-sync of the audio bus is enabled using the controls in the lower right corner of this screen. Re-sync is
done if the group delay changes by more than ±FS/4 for the ADC or DAC sample rates (see the
TLV320AIC31 datasheet). The channels can be soft muted when doing the re-sync if the Soft Mute button
is enabled.
16 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005