ak4104 AKM Semiconductor, Inc., ak4104 Datasheet - Page 11

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ak4104

Manufacturer Part Number
ak4104
Description
192khz 24-bit 3.3v Dit
Manufacturer
AKM Semiconductor, Inc.
Datasheet

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Data is shifted in via the SDTI pin using BICK and LRCK inputs. The DIF1-0 bits as shown in Table 2 can select four
serial data modes. In all modes the serial data is MSB-first, 2’s compliment format and is latched on the rising edge of
BICK. Mode 3 can be used for 16bit I
MS0642-E-00
Audio Interface Format
Mode
LRCK
BICK(64fs)
LRCK
BICK(32fs)
BICK(64fs)
LRCK
BICK(64fs)
SDTI(i)
SDTI(i)
SDTI(i)
SDTI(i)
0
1
2
3
DIF1
0 1 2
0
0
1
1
0 1
0 1
0 1 2
15 14 13
23:MSB, 0:LSB
23 22
23:MSB, 0:LSB
SDTI-15:MSB, 0:LSB
Don't Care
Don't Care
2 3
2 3
2
S Compatible format by zeroing the unused LSBs at BICK ≥ 48fs or BICK = 32fs.
4 3 2 1
20 21
8 9
DIF0
23
15 14 13 12
Lch Data
Lch Data
Lch Data
7 6 5 4 3 2 1 0 15 14 13
Table 2. Audio Interface Format
17
0
1
0
1
9
Figure 10. Mode 0 Timing
Figure 11. Mode 1 Timing
Figure 12. Mode 2 Timing
10
18
22 23
11 12 13 14 15 0 1 2 3
19 20
8
0
24
24
16/24bit, I
Don't Care
- 11 -
24bit, MSB justified
16bit, LSB justified
24bit, LSB justified
SDTI Format
1 0
1
31 0 1 2 3
31 0 1 2
31 0 1 2
0
2
23 22
S Compatible
Don't Care
Don't Care
4
20 21
8 9
15 14 13
Rch Data
23
Rch Data
Rch Data
7 6 5 4 3 2 1 0
3
17
≥ 48fs or 32fs
9
2
10
18 19 20
22
≥ 32fs
≥ 48fs
≥ 48fs
BICK
1
11 12 13 14 15
23
12
0
8
24
24
Don't Care
2 1 0
1 0
31
31
Figure 10
Figure 11
Figure 12
Figure 13
31
Figure
0
0
0
0
15
23
1
1
1
1
2007/07

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