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參數資料
| 型號： | AK4633 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| 中文描述： | 16位單聲道編解碼器ALC的 |
| 文件頁數： | 33/82頁 |
| 文件大?。?/td> | 688K |
| 代理商： | AK4633 |
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ASAHI KASEI
[AK4633]
MS0447-E-03
2006/04
- 33 -
Audio Interface Format
Four types of data formats are available and are selected by setting the DIF1-0 bits (Table 15). In all modes, the serial data
is MSB first, 2’s complement format. Audio interface formats can be used in both master and slave modes. FCK and
BICK are output from AK4633 in master mode, but must be input to AK4633 in slave mode.
In Mode 1-3, the SDTO is clocked out on the falling edge of BICK and the SDTI is latched on the rising edge.
Mode
DIF1
DIF0
SDTO (ADC)
SDTI (DAC)
0
0
0
DSP Mode
DSP Mode
1
0
1
MSB justified
LSB justified
2
1
0
MSB justified
MSB justified
3
1
1
I
2
S compatible
I
2
S compatible
Table 15. Audio Interface Format
In Mode0 (DSP mode), the audio I/F timing is changed by BCKP and MSBS bits.
When BCKP bit is
“
0
”
, SDTO data is output by rising edge of BICK, SDTI data is latched by falling edge of BICK.
When BCKP bit is
“
1
”
, SDTO data is output by falling edge of BICK, SDTI data is latched by rising edge of BICK.
MSB data position of SDTO and SDTI can be shifted by MSBS bit. The shifted period is a half of BICK.
MSBS bit
BCKP bit
0
0
0
1
1
0
1
1
Table 16. Audio Interface Format in Mode 0
If 16-bit data that ADC outputs is converted to 8-bit data by removing LSB 8-bit,
“
1
”
at 16bit data is converted to
“
1
”
at
8-bit data. And when the DAC playbacks this 8-bit data,
“
1
”
at 8-bit data will be converted to
“
256
”
at 16-bit data and
this is a large offset. This offset can be removed by adding the offset of
“
128
”
to 16-bit data before converting to 8-bit
data.
FCK
BICK
≥
16fs
≥
32fs
≥
32fs
≥
32fs
Figure
Table 16
Figure 23
Figure 24
Figure 25
Default
Audio Interface Format
Figure 26
Figure 27
Figure 28
Figure 29
Default
BICK(32fs)
SDTO(o)
0
1
2
8
9
10
12
13
15
0
1
2
8
9
10
12
13
15
0
15
1
14
4
8
7
6
0
3
2
11
14
1
5
14
11
15
BICK(64fs)
SDTO(o)
0
1
2
3
14
15
18
31
0
1
2
14
15
17
18
31
0
15
1
14
0
15
SDTI(i)
1
0
15
14
15:MSB, 0:LSB
Data
1/fs
Don’t Care
2
1
13
Don’t Care
16
16
3
3
13
3
15 14
4
7
6
0
3
2
1
5
15
13
SDTI(i)
Don’t Care
Figure 23. Mode 1 Timing
相關PDF資料 |
PDF描述 |
|---|---|
| AK4640 | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4640VG | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4640VN | 16BIT CODEC WITH MIC /HP/SPK-AMPl |
| AK4642EN | Stereo CODEC with MIC/HP/SPK-AMP |
| AK4643EN | Stereo CODEC with MIC/HP/RCV/SPK-AMP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AK4633ENP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A |
| AK4633VN | 制造商:AKM 制造商全稱:AKM 功能描述:16bit mono CODEC with MIC/SPK amplifier. |
| AK4633VNP-L | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:LOW COST MONO CODEC WITH SPK A |
| AK4634 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK-AMP |
| AK4635 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP |
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