AK4633 Datasheet, PDF (60/82 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP

ASAHI KASEI
[AK4633]
Addr
07H
Register Name
ALC Mode Control 1
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
ALC2 ALC1 ZELMN LMAT1 LMAT0 RGAIN0 LMTH0
0
0
0
0
0
0
0
1
LMTH1-0: ALC Limiter Detection Level / Recovery Waiting Counter Reset Level (Table 23)
LMTH1 bit is D6 bit of 0BH. Default: “01”.
RGAIN1-0: ALC Recovery Gain Step(Table 27)
RGAIN1 bit is D7 bit of 0BH. Default: “00”
LMAT1-0: ALC Limiter ATT Step(Table 24)
Default: “00”
ZELMN: Enable zero crossing detection at ALC Limiter operation
0: Enable (Default)
1: Disable
ALC1: ALC Enable for Recording
0: Recording ALC Disable (Default)
1: Recording ALC Enable
ALC2: ALC Enable for Playback
0: Playback ALC Disable (Default)
1: Playback ALC Enable
Addr
08H
Register Name
ALC Mode Control 2
Default
D7
IREF7
1
D6
IREF6
1
D5
IREF5
0
D4
IREF4
0
D3
IREF3
0
D2
IREF2
1
D1
IREF1
0
D0
IREF0
1
IREF7-0: Reference value at Recording ALC Recovery Operation. 0.375dB step, 242 Level (Table 28)
Default: “C5H” (+19.5dB)
Addr
09H
Register Name
Input Digital Volume Control
Default
D7
IVOL7
1
D6
IVOL6
0
D5
IVOL5
0
D4
IVOL4
1
D3
IVOL3
0
D2
IVOL2
0
D1
IVOL1
0
D0
IVOL0
1
IVOL7-0: Input Digital Volume; 0.375dB step, 242 Level (Table 20)
Default: “91H” (0.0dB)
Addr Register Name
0AH Digital Volume Control
Default
D7
OVOL7
1
D6
OVOL6
0
D5
OVOL5
0
D4
OVOL4
1
D3
OVOL3
0
D2
OVOL2
0
D1
OVOL1
0
D0
OVOL0
1
OVOL7-0: Output Digital Volume; 0.375dB step, 242 Level (Table 21)
Default: “91H” (0.0dB)
MS0447-E-03
- 60 -
2006/04