ASAHI KASEI
[AK4564]
ALC Mode Control 3
Addr
Register Name
D7
D6
D5
D4
D3
D2
D1
D0
09H ALC Mode Control 3
Default
REF7
1
REF6
1
REF5
1
REF4
0
REF3
0
REF2
0
REF1
0
REF0
1
REF7•0: Reference value at ALC1 Recovery Operation. 0.375dB step, 242 Levels
During the ALC1 recovery operation, if the REF value exceeds the setting reference value by
Gain operation, REF value does not become larger than the reference value.
GSEL bit selects the gain table of either MIC or LINE.
GAIN(dB)
DATA
MIC
LINE
(GSEL bit = “0”) (GSEL bit = “1”)
F1H
F0H
EFH
+36.0
+35.625
+35.25
+6.0
+5.625
+5.25
·
·
·
E2H
E1H
E0H
DFH
+30.375
+30.0
+29.625
+29.25
+0.375
0
-0.375
-0.75
Default
·
·
·
04H
03H
02H
01H
-52.875
-53.25
-53.625
-54.0
-82.875
-83.25
-83.625
-84.0
00H
MUTE
MUTE
Table 22. Set-up Reference Level at ALC1 Recovery operation
MS0140-E-01
2002/07
- 42 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
