參數(shù)資料
型號(hào): AK4631
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi): 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(yè)數(shù): 51/69頁(yè)
文件大?。?/td> 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 51 -
Addr
07H
Register Name
ALC Mode Control 1
Default
D7
0
0
D6
ALC2
1
D5
ALC1
0
D4
ZELM
0
D3
D2
D1
RATT
0
D0
LMAT1
0
LMAT0
0
LMTH
0
LMTH: ALC1
/
(see Table 35)
ALC1
(
±
2dB)
“0”
LMTH
0
1
ALC1
ADC Input
6.0dBFS
ADC Input
4.0dBFS
Table 35. ALC1 Limiter Detection Level / Recovery Waiting Counter Reset Level
ALC1
Default
6.0dBFS
>
ADC Input
8.0dBFS
4.0dBFS
>
ADC Input
6.0dBFS
RATT: ALC1
(see Table 36)
IPGA
ALC1
IPGA
30H
RATT bit=“1”
ALC1
IPGA
32H
1dB (=0.5
×
2)
IPGA
(REF6-0 bit)
IPGA
RATT
0
1
GAIN STEP
1
2
Default
Table 36. ALC1 Recovery Gain Step Setting
LMAT1-0: ALC1
ALC1
ATT
(see Table 37)
ALC1
(LMTH)
IPGA
IPGA
47H
LMAT1-0 bit=“11”
(=0.5
×
4)
ALC1
IPGA=“00H”
ALC1
IPGA
43H
2dB
LTM1-0 bit
ZELM bit
“00H”
LMAT1
0
0
1
1
Table 37. ALC1 Limiter ATT Step Setting
LMAT0
0
1
0
1
ATT STEP
1
2
3
4
Default
ZELM: ALC1
0: Enable (Default)
1: Disable
“0”
ALC1
IPGA
ALC1
“1”
ALC1
IPGA
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