ak4633 AKM Semiconductor, Inc., ak4633 Datasheet - Page 60

• Manufacturer Part Number: ak4633
• Description: 16-bit ?? Mono Codec With Alc & Mic/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

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