ak4646 AKM Semiconductor, Inc., ak4646 Datasheet - Page 59

• Manufacturer Part Number: ak4646
• Description: Stereo Codec With Mic/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

MS0557-E-02
Addr
0AH
Addr
Addr
25H
Addr
Addr
0BH
0DH
0CH
08H
09H
VOL7-0: Current ALC volume value; 0.375dB step, 242 Level. Read operation only (Table 31)
REF7-0: Reference Value at ALC Recovery Operation. 0.375dB step, 242 Level (Table 28.)
IVL7-0, IVR7-0: Input Digital Volume; 0.375dB step, 242 Level (Table 34.)
OVL7-0, OVR7-0: Output Digital Volume (Table 35)
OREF5-0: Reference value at Playback ALC Recovery Operation. 0.375dB step, 50 Level (Table 29)
LMTH1: ALC Limiter Detection Level / Recovery Counter Reset Level (Table 23.)
RGAIN1: ALC Recovery GAIN Step (Table 27.)
Default: “E1H” (+30.0dB)
Default: “E1H” (+30.0dB)
Default: “ 28H ” (+6.0dB)
Default: “91H” (0dB)
Register Name
Lch Digital Volume Control
Rch Digital Volume Control
Register Name
ALC Mode Control 2
Register Name
Lch Input Volume Control
Rch Input Volume Control
Register Name
ALC Volume
Register Name
ALC Mode Control 3
Default
Default
Default
Default
Default
R/W
R/W
R/W
R/W
R/W
RGAIN1
IREF7
VOL7
R/W
R/W
IVL7
IVR7
R/W
OVR7
OVL7
R/W
D7
D7
D7
D7
D7
0
R
1
1
-
1
LMTH1
IREF6
VOL6
IVL6
IVR6
OVR6
R/W
R/W
OVL6
D6
R/W
D6
R/W
D6
D6
R
1
D6
1
-
0
0
- 59 -
IREF5
VOL5
IVL5
IVR5
OREF5
R/W
R/W
OVL5
OVR5
D5
D5
D5
R/W
R/W
1
R
1
D5
-
D5
1
0
IREF4
OREF4
VOL4
IVL4
IVR4
R/W
OVR4
R/W
OVL4
D4
R/W
D4
R/W
D4
D4
0
D4
R
0
-
0
1
OREF3
IREF3
VOL3
OVR3
IVL3
IVR3
OVL3
R/W
R/W
R/W
R/W
D3
D3
D3
D3
D3
R
0
0
1
-
0
OREF2
IREF2
VOL2
OVR2
IVL2
IVR2
OVL2
R/W
R/W
R/W
R/W
D2
D2
D2
D2
D2
0
R
0
-
0
0
OREF1
IREF1
VOL1
IVR1
OVL1
OVR1
IVL1
R/W
R/W
R/W
R/W
D1
D1
D1
D1
D1
R
0
0
-
0
0
[AK4646]
OREF0
IREF0
VOL0
OVL0
OVR0
2007/05
IVL0
IVR0
R/W
R/W
R/W
R/W
D0
D0
D0
D0
D0
R
1
1
0
1
-