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參數(shù)資料
| 型號： | AK4641 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 元件分類： | Codec |
| 英文描述： | 16 BIT CODEC WITH BLUETOOTH INTERFACE |
| 中文描述： | 16位編解碼器與藍牙接口 |
| 文件頁數(shù)： | 10/51頁 |
| 文件大?。?/td> | 461K |
| 代理商： | AK4641 |
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ASAHI KASEI
[AK4641]
MS0301-E-00
2004/05
- 18 -
Audio Interface Format of Stereo CODEC
Three types of data formats are available and are selected by setting the DIF1-0 bits. In all modes, the serial data is MSB
first, 2’s complement format. The SDTO is clocked out on the falling edge of BICK and the SDTI is latched on the rising
edge. LRCK and BICK must be input to the AK4641 in slave mode. If 16bit data that ADC of Stereo CODEC outputs is
converted to 8bit data by removing LSB 8bit, “
1” at 16bit data is converted to “1” at 8bit data. And when the DAC of
Stereo CODEC playbacks this 8bit data, “
1” at 8bit data will be converted to “256” at 16bit data and this is a large
offset. This offset can be removed by adding the offset of “128” to 16bit data before converting to 8bit data.
Mode
DIF1
DIF0
SDTO (ADC)
SDTI (DAC)
BICK
Figure
0
MSB justified
LSB justified
≥ 32fs
Figure 14
1
0
1
MSB justified
≥ 32fs
Figure 15
2
1
0
I
2S
I
2S
≥ 32fs
Figure 16
Default
3
1
N/A
-
Table 5. Audio Interface Format of Stereo CODEC
LRCK
BICK(32fs)
SDTO(o)
SDTI(i)
0
15 14
110
13
23
7
76 543 21 0
6 543
10
2
9
1112 13 1415 0 12 3
15 14 13
1
0
15
76 5 4 3 21 0
10
9
11 12 131415
BICK(64fs)
0 116
2 3
17 18
31 0 1 2 3
1
0
16 17 18
31
SDTO(o)
SDTI(i)
15 14 13
Don't Care
10
1
15
21 0
15
0
15 14
15
14
Don't Care
15:MSB, 0:LSB
Lch Data
Rch Data
Figure 14. Mode 0 Timing
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PDF描述 |
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| AK4641VN | 16 BIT CODEC WITH BLUETOOTH INTERFACE |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AK4641EN | 制造商:AKM 制造商全稱:AKM 功能描述:16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface. |
| AK4641VN | 制造商:AKM 制造商全稱:AKM 功能描述:16 BIT CODEC WITH BLUETOOTH INTERFACE |
| AK4642 | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ???￡ Stereo CODEC with MIC/HP/SPK-AMP |
| AK4642EN | 制造商:AKM 制造商全稱:AKM 功能描述:Stereo CODEC with MIC/HP/SPK-AMP |
| AK4642VN | 制造商:AKM 制造商全稱:AKM 功能描述:16-Bit ???￡ Stereo CODEC with MIC/HP/SPK-AMP |
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