38
Pin Name
Pin #
Type
Description
MIO0 /
L–
143
I/O
Multiple I/O 0:
MIO0 is used to output several internal test signals.
DEFAULT
Serial Data:
This signal is for 16-bit PCM serial audio data.
It can
be used to send audio data to an external or internal OTI-9797 DAC.
Audio data is in 24-bit slot format for input and output.
Differential Audio Output
MIO1 /
L+
144
O
Multiple I/O 1:
MIO1 is used to output several internal test signals.
DEFAULT
Audio Left/Right Clock:
Indicates the start of the 24-bit value
on SDATA. High indicates the start of the left channel.
L+: Differential Audio Output
MIO2 /
R+
147
O
Multiple I/O 2:
MIO2 is used to output several internal test signals.
DEFAULT
Audio Bit Clock:
This is the data bit clock output for SDATA.
There are 24 cycles of bit clock for each 16-bit audio word.
R+: Differential Audio Output
MIO3 /
R–
148
O
Multiple I/O 3:
MIO3 is used to output several internal test signals.
DEFAULT
De-Emphasis Control
: Differential Audio Output
DOUT
139
O
Digital Audio Output:
Bi-phase serial audio output that follows the IEC 60958
standard.
L
151
O
A
Left Channel Audio Output
R
154
O
A
Right Channel Audio Output
AUDIO INTERFACES
