AK4955 Datasheet, PDF (90/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
Addr
0CH
Register Name
ALC Mode Control 2
R/W
Default
D7
IREF7
R/W
1
D6
IREF6
R/W
1
D5
IREF5
R/W
1
D4
IREF4
R/W
0
D3
IREF3
R/W
0
D2
IREF2
R/W
0
D1
IREF1
R/W
0
D0
IREF0
R/W
1
IREF7-0: Reference Value of ALC Recovery Operation (Recording). 0.375dB step, 242 Level (Table 32)
Default: “E1H” (+30.0dB)
Addr
0DH
Register Name
ALC Mode Control 3
R/W
Default
D7
RGAIN1
R/W
0
D6
RGAIN0
R/W
0
D5
OREF5
R/W
1
D4
OREF4
R/W
0
D3
OREF3
R/W
1
D2
OREF2
R/W
0
D1
OREF1
R/W
0
D0
OREF0
R/W
0
OREF7-0: Reference Value of ALC Recovery Operation (Playback). 0.375dB step, 50 Level (Table 33)
Default: “28H” (+6.0dB)
RGAIN1-0: ALC Recovery GAIN Step (Table 31)
Default: “00”
Addr
0EH
Register Name
ALC Volume
R/W
Default
D7
VOL7
R
1
D6
VOL6
R
0
D5
VOL5
R
0
D4
VOL4
R
1
D3
VOL3
R
0
D2
VOL2
R
0
D1
VOL1
R
0
D0
VOL0
R
1
VOL7-0: Current ALC volume value, 0.375dB step, 242 Level, Read operation only (Table 35)
Addr Register Name
0FH Lch Input Volume Control
10H Rch Input Volume Control
R/W
Default
D7
IVL7
IVR7
R/W
1
D6
IVL6
IVR6
R/W
1
D5
IVL5
IVR5
R/W
1
D4
IVL4
IVR4
R/W
0
D3
IVL3
IVR3
R/W
0
IVL7-0, IVR7-0: Input Digital Volume, 0.375dB step, 242 Level (Table 38)
Default: “E1H” (+30dB)
D2
IVL2
IVR2
R/W
0
D1
IVL1
IVR1
R/W
0
D0
IVL0
IVR0
R/W
1
Addr
11H
12H
Register Name
Lch Output Volume Control
Rch Output Volume Control
R/W
Default
D7
OVL7
OVR7
R/W
1
D6
OVL6
OVR6
R/W
0
D5
OVL5
OVR5
R/W
0
D4
OVL4
OVR4
R/W
1
D3
OVL3
OVR3
R/W
0
D2
OVL2
OVR2
R/W
0
D1
OVL1
OVR1
R/W
0
D0
OVL0
OVR0
R/W
1
OVL7-0, OVR7-0: Output Digital Volume (Table 40)
Default: “91H” (0dB)
MS1343-E-00
- 90 -
2011/12