參數(shù)資料
型號: AK4536VN
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(shù): 29/59頁
文件大?。?/td> 403K
代理商: AK4536VN
ASAHI KASEI
[AK4536]
MS0174-E-00
2002/09
- 29 -
FCK
BICK(32fs)
SDTO(o)
0
1
2
4
9
10
12
13
15
0
1
2
4
9
10
12
13
15
0
1
15
5
13 7
7
1
4
3
11
14
2
6
0
14
11
13
BICK(64fs)
SDTO(o)
0
1
2
3
14
15
17
18
31
0
1
2
4
14
15
17
18
31
0
1
15
0
SDTI(i)
15:MSB, 0:LSB
Data
1/fs
Don’t Care
2
1
14
Don’t Care
16
16
3
13
15
2
1
14
0
14
3
3
4
SDTI(i)
15
5
13
7
1
4
3 2
6
0
14
Figure 27. Mode 3 Timing
n
Digital High Pass Filter
The ADC has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 1.25Hz (@fs=8kHz)
and scales with sampling rate (fs).
n
MIC Gain Amplifier
AK4536 has a Gain Amplifier for Microphone input. This gain is 0dB or 20dB, selected by the MGAIN bit. The typical
input impedance is 30k
.
MGAIN bit
0
1
Table 14. Input Gain
n
MIC Power
The MPI pin supplies power for the Microphone. This output voltage is typically 0.75 x AVDD and the maximum output
current is 1.25mA.
Input Gain
0dB
+20dB
Default
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