ADAU1781 Analog Devices, ADAU1781 Datasheet - Page 61

• Manufacturer Part Number: ADAU1781
• Description: SigmaDSP Low-noise Stereo Audio Codec for Portable Applications
• Manufacturer: Analog Devices

Specifications of ADAU1781

• Instructions/cycles: 1024
• Digital I/o Channels: 8/8
• Analog I/o Channels: 2/2
• Product Description: SigmaDSP low-noise stereo audio codec for portable applications

LRCLK
BCLK
1
2
3
TDM 4 CHANNELS
TDM 8 CHANNELS
TDM 4 CHANNELS
TDM 8 CHANNELS
4
MSB FIRST
LSB FIRST
LRCLK
5
BCLK
6
BCLK
LRCLK
LRCLK
7
8
1
M
9
1
L
2
10
3
2
RIGHT
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
LEFT
4
3
FIRST PAIR
FIRST PAIR
5
RIGHT
LEFT
4
6
7
5
RIGHT
LEFT
8
6
FIRST PAIR
FIRST PAIR
9
Figure 66. Right First Channel Selection in TDM
Figure 63. Example: 32 BCLK Cycles per Frame
Figure 64. Example: 48 BCLK Cycles per Frame
Figure 65. Left First Channel Selection in TDM
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
7
8
Figure 67. MSB Position Settings
RIGHT
LEFT
SECOND PAIR
SECOND PAIR
9
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RIGHT
LEFT
10
11
1/
1/
RIGHT
LEFT
f
f
LRCLK
LRCLK
12
1/
1/
f
f
13
LRCLK
LRCLK
14
RIGHT
LEFT
15
THIRD PAIR
THIRD PAIR
RIGHT
LEFT
16
17
RIGHT
LEFT
18
SECOND PAIR
SECOND PAIR
19
20
RIGHT
LEFT
21
FOURTH PAIR
FOURTH PAIR
RIGHT
LEFT
22
23
RIGHT
LEFT
41 42 43 44 45 46 47 48
24
M
L
ADAU1781