參數(shù)資料
型號: AK4352
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 2V & LOW POWER MULTI-BIT DAC
中文描述: 2V的
文件頁數(shù): 8/13頁
文件大小: 88K
代理商: AK4352
ASAHI KASEI
[AK4352]
M0040-E-02
2000/11
- 8 -
n
Audio Serial Interface Format
The AK4352 interfaces with external system by using SDATA, BICK and LRCK pins. Four types of data format are
available and one of them is selected by setting DIF0 and DIF1. Format 0 is compatible with existing 16bit DACs and
digital filters. Format 1 is an 18bit version of format 0. Format 2 is similar to AKM ADCs and many DSP serial ports.
Format 3 is compatible with the I
2
S serial data protocol. In format 2 and 3, 16bit data followed by two zeros also could
be input. In all modes, the serial data is MSB first and 2’s complement format.
DIF1
0
0
1
1
DIF0
0
1
0
1
Mode
BICK
32fs
36fs
36fs
Figure
Figure 2
Figure 2
Figure 3
Figure 4
0: 16bit LSB Justified
1: 18bit LSB Justified
2: 18bit MSB Justified
3: I
2
S Compatible
32fs or 36fs
Table 2. Digital Input Formats
LRCK
BICK
SDATA
Mode 0
SDATA
Mode 1
15:MSB, 0:LSB (@16bit Data)
15
14
0
Don’t care
Don’t care
15
14
0
17
16
15
14
0
17
16
17:MSB, 0:LSB (@18bit Data)
Don’t care
Don’t care
Rch
Lch
15
14
0
*Mode 1: BICK needs 36fs or more than 36fs.
Figure 2. Mode 0,1 Timing
LRCK
BICK
SDATA
16bit
SDATA
18bit
16
17
16
3
2
17
1
0
Don’t
care
14
1
0
15
14
15
Lch
Rch
Don’t
16
3
2
17
1
0
14
1
0
15
Don’t
Don’t
* BICK needs 36fs or more than 36fs.
Figure 3. Mode 2 Timing
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