AK4492ECB Datasheet, PDF (60/101 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4492]
[3] External Digital Filter Mode (EXDF Mode)
The audio data is input by BCK and WCK from the DINL and DINR pins. Three formats are available
(Table 27) by DIF2-0 bits setting. The data is latched on the rising edge of BCK. The BCK and MCLK
clocks must not burst.
Table 27. Audio Interface Format (EXDF Mode)
Mode DIF2 DIF1 DIF0
Input Format
0
0
0
0
16-bit LSB justified
1
0
0
1
N/A
2
0
1
0
16-bit LSB justified
3
0
1
1
N/A
4
1
0
0
24-bit LSB justified
5
1
0
1
32-bit LSB justified
6
1
1
0
24-bit LSB justified
7
1
1
1
32-bit LSB justified
(N/A: Not available)
(default)
1/16fs or 1/8fs or 1/4fs or 1/2fs
WCK
BCK
01
8 9 10 11
16 17
26 27 28 29 30 31 0 1
DINL or
DINR
BCK
DINL or
DINR
BCK
DINL or
DINR
31 30
01
Don’t care
01
Don’t care
24 23 22 21 20 17 16 15 14
5 6 78
47 48 49
Don’t care
13 14 15 16
Don’t care
23 24 25
Don’t care 31
654 321 0
65
92 93 94 95 0 1
31
3 2 1 0 Don’t care
44 45 46 47 0 1
3 2 1 0 Don’t care
Figure 49. EXDF Mode Timing
016011073-E-00
- 60 -
2016/12