PCM9211
SBAS495 –JUNE 2010
www.ti.com
Figure 12 illustrates these formats.
MSB First, 24-bit I2S
LRCK
Left-channel
Left-channel
Left-channel
Right-channel
Right-channel
Right-channel
BCK
DATA IN
1
2
3
3
22 23 24
LSB
1
2
3
3
22 23 24
LS B
MSB
MSB
DATA OUT
1
2
22 23 24
LSB
1
2
22 23 24
LSB
MSB
MSB
MSB First, 24-bit Left Justified
LRCK
BCK
DATA IN
1
2
2
3
3
22 23 24
1
2
3
22 23 24
1
1
MSB
1
LSB
22 23 24
LSB
MSB
LSB
22 23 24
LSB
DATA OUT
1
2
3
MSB
MSB
MSB First, 24-bit Right Justified
LRCK
BCK
24
1
2
2
3
22 23 24
LSB
1
2
2
3
3
22 23 24
DATA IN
MSB
1
MSB
1
LSB
22 23 24
LSB
24
3
22 23 24
LSB
DATA OUT
MSB
MSB
MSB First, 16-bit Right Justified
Left-channel
Right-channel
LRCK
BCK
16
1
2
2
3
3
14 15 16
LSB
1
2
2
3
3
14 15 16
LSB
DATA IN
MSB
1
MSB
1
16
14 15 16
LSB
14 15 16
LSB
DATA OUT
MSB
MSB
Figure 12. Audio Data Input/Output Format
18
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