參數(shù)資料
型號: AK4397
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: High Performance Premium 32-Bit DAC
中文描述: 優(yōu)質(zhì)高性能32位DAC
文件頁數(shù): 19/37頁
文件大小: 513K
代理商: AK4397
[AK4397]
MS0616-E-00
2007/05
- 19 -
Audio Interface Format
[1] PCM Mode
Data is shifted in via the SDATA pin using BICK and LRCK inputs. Five data formats are supported and selected by the
DIF2-0 pins (Parallel mode) or DIF2-0 bits (Serial mode) as shown in Table 11. In all formats the serial data is MSB-first,
2's compliment format and is latched on the rising edge of BICK. Mode 2 can be used for 20 and 16 MSB justified formats
by zeroing the unused LSBs.
Mode
DIF2
DIF1
DIF0
Input Format
0
0
0
0
16bit LSB justified
1
0
0
1
20bit LSB justified
2
0
1
0
24bit MSB justified
3
0
1
1
24bit I
2
S Compatible
4
1
0
0
24bit LSB justified
5
1
0
1
32bit LSB justified
6
1
1
0
32bit MSB justified
7
1
1
1
32bit I
2
S Compatible
Table 11. Audio Interface Format
BICK
32fs
48fs
48fs
48fs
48fs
64fs
64fs
64fs
Figure
Figure 1
Figure 2
Figure 3
Figure 4
Figure 2
Figure 5
Figure 6
Figure 7
(default)
SDATA
Mode 0
BICK
(32fs)
LRCK
SDATA
Mode 0
15
14
6
5
4
BICK
(64fs)
0
1
10
11
12
13
14
15
0
1
10
11
12
13
14
15
0
1
3
2
1
0
15
14
0
14
1
15
16
17
31
0
1
14
15
16
17
31
0
1
15
14
0
15
14
0
Don’t care
Don’t care
15:MSB, 0:LSB
15
14
6
5
4
3
2
1
0
Lch Data
Rch Data
Figure 1. Mode 0 Timing
SDATA
Mode 1
LRCK
BICK
(64fs)
0
9
1
10
11
12
31
0
1
9
10
11
12
31
0
1
19
0
19
0
Don’t care
Don’t care
19:MSB, 0:LSB
SDATA
Mode 4
23:MSB, 0:LSB
20
19
0
20
19
0
Don’t care
Don’t care
22
21
22
21
Lch Data
Rch Data
8
23
23
8
Figure 2. Mode 1, 4 Timing
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