BU26156RFS Datasheet, PDF (69/95 Pages) Rohm – Monoraul MIC Input with ALC

BU26156RFS
Datasheet
MIC ALC Control Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0xba 0xbb
-
-
-
-
-
-
MCLEN MALCEN
-
-
-
-
-
-
1
1
This register sets the ALC for MIC input
Please refer to function explanation for the details of this function
MALCEN
This sets the MIC ALC.
In the case of OFF, MIC ALC suffers from Gain of MICAMP with a value of MALCMXGAIN
setting
Description
0
MALC Function OFF
1
MALC Function ON (default)
MCLEN
This sets the MIC Clip reduction.
setting
0
MIC Clip reduction OFF
1
MIC Clip reduction ON (default)
Description
MIC ALC Attack /Decay Time Register
MAPCON
INDEX
b07
b06
b05
b04
b03
b02
b01
b00
R
W
(Initial)
0x0
0xbc 0xbd
-
MALCDCY
-
MALCATK
-
1
0
0
-
1
0
0
This register sets Decay Time in Attack Time of the MIC ALC.
MALCATK[2:0]
MIC ALC Attack Time
setting 8kHz 11.025k 12kHz 16kHz 22.05kH 24kHz 32kHz 44.1kHz 48kHz Unit
Hz
z
0
0.25
0.18
0.17
0.13
0.09
0.08
0.06
0.05
0.04
ms
1
0.5
0.36
0.33
0.25
0.18
0.17
0.13
0.09
0.08
ms
2
1.0
0.73
0.67
0.5
0.36
0.33
0.25
0.18
0.17
ms
3
2.0
1.45
1.33
1.0
0.73
0.67
0.5
0.36
0.33
ms
4
4.0
2.9
2.67
2.0
1.45
1.33
1.0
0.73
0.67
ms
5
8.0
5.8
5.33
4.0
2.9
2.67
2.0
1.45
1.33
ms
6
16.0
11.61
10.67
8.0
5.8
5.33
4.0
2.9
2.67
ms
7
32.0
23.22
21.33
16.0
11.61
10.67
8.0
5.8
5.33
ms
MALCDCY[2:0]
MIC ALC Decay Time
setting 8kHz 11.025k 12kHz 16kHz 22.05kH 24kHz 32kHz 44.1kHz 48kHz Unit
Hz
z
0
64
46
43
32
23
21
16
12
11
ms
1
128
93
85
64
46
43
32
23
21
ms
2
256
186
171
128
93
85
64
46
43
ms
3
512
372
341
256
186
171
128
93
85
ms
4
1024
743
683
512
372
341
256
186
171
ms
5
2048
1486
1365
1024
743
683
512
372
341
ms
6
4096
2972
2731
2048
1486
1365
1024
743
683
ms
7
8192
5944
5461
4096
2972
2731
2048
1486
1365
ms
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TSZ22111・15・001
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TSZ02201-0V1V0E502570-1-2
Jul.1.2014 Rev.001