參數(shù)資料
型號: AK4641VN
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(lán)牙接口
文件頁數(shù): 14/51頁
文件大?。?/td> 461K
代理商: AK4641VN
ASAHI KASEI
[AK4641]
MS0301-E-00
2004/05
- 21 -
(3) MSB justified
BSYNC
BBICK
(32Bfs)
BSDTO(o)
BSDTI(i)
0
15 14
110
13
23
7
76 5 4 3 21 0
65 4 3
10
2
9
11 12 131415 0 12 3
1
0
15
10
9
11 121314 15
BBICK
(64Bfs)
0 116
2 3
17 18
31 0 1 2 3
1
0
16 17 18
31
BSDTO(o)
BSDTI(i)
15 14 13
Don't Care
1
15
0
15 14
15
Don't Care
15:MSB, 0:LSB
13
10
15
Don't Care
Figure 19. Timing of MSB justified
(4) I
2S
BSYNC
BBICK
(32Bfs)
BSDTO(o)
BSDTI(i)
0
15 14
110
23
7
76 543 21 0
6 543
10
2
9
111213 1415 0 12 3
1
0
10
9
11 1213 1415
BBICK
(64Bfs)
0 116
2 3
17 18
31 0 1 2 3
1
0
16 17 18
31
BSDTO(o)
BSDTI(i)
15 14
Don't Care
2
15
1
15
Don't Care
15:MSB, 0:LSB
14
21
8
0
Don't Care
Figure 20. Timing of I
2S
Digital High Pass Filter
The ADC of Stereo CODEC has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is
3.4Hz (@fs=44.1kHz) and scales with sampling rate (fs).
The ADC of Mono CODEC also has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF
is 0.62Hz (@Bfs=8kHz) and scales with sampling rate (Bfs).
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