Datasheet

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LRCK
(b)I SDataFormat;L-Channel=LOW,R-Channel=HIGH
2
(a)Right-JustifiedDataFormat;L-Channel=HIGH,R-Channel=LOW
(c)Left-JustifiedDataFormat;L-Channel=HIGH,R-Channel=LOW
L-Channel R-Channel
BCK
DOUT
15 16
1/f
S
11 1112 12
13 13
MSB MSBLSB LSB
1 1
4 4
2 2
5 5
3 3
6 6
7 7
8 89 910 10
14 14
15 1516 16
LRCK L-Channel R-Channel
1/f
S
LRCK
(=32f ,48f ,or64f )
S S S
(1)
L-Channel R-Channel
BCK
DOUT
1/f
S
11 1112 12
13 13
MSB MSBLSB LSB
1 1 1
4 4
2 2 2
5 5
3 3
6 6
7 7
8 89 910 10
14 14
15 1516 16
T0009-09
(d)BurstBCKInterfaceFormatinMasterMode;L-Channel=HIGH,R-Channel=LOW
(e)DSP Format
(=32f ,48f ,or64f )
S S S
(1)
BCK
DOUT
11 1112 12
13 13
MSB MSBLSB LSB
1 1 1
4 4
2 2 2
5 5
3 3
6 6
7 7
8 89 910 10
14 14
15 1516 16
LRCK L-Channel R-Channel
1/f
S
(=32f ,48f ,or64f )
S S S
(1)
BCK
DOUT
11 1112 12
13 13
MSB MSBLSB LSB
1 1 1
4 4
2 2 2
5 5
3 3
6 67 78 89 910 10
14 14
15 1516 16
LRCK
1/f
S
(=32f ,48f , or256f )
S S S
64f ,128f
S S
BCK
DOUT
11 1112 12
13 13
MSB MSBLSB LSB
1 1 1
4 4
2 2 2
5 5
3 3
6 67 78 89 910 10
14 14
15 1516 16
(=32f ,48f ,or64f )
S S S
(1)
16-BitRight-Justified
PCM1870
SLAS544A – MAY 2007 – REVISED SEPTEMBER 2007
(1) All audio interface formats support BCK = 64 f
S
in master mode (register 69, MSTR = 1). When set to multisampling
rate, f
S
of BCK is set to half the rate of the DSM operation frequency.
Figure 16. Audio Data Output Formats
18 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): PCM1870