AK4951AEN Datasheet, PDF (81/105 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4951A]
Addr
0DH
0EH
Register Name
Lch Input Volume Control
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
D2
IVL2
IVR2
R/W
0
IVL7-0, IVR7-0: Digital Input Volume; 0.375dB step, 242 Level (Table 45)
Default: “E1H” (+30.0dB)
D1
IVL1
IVR1
R/W
0
D0
IVL0
IVR0
R/W
1
Addr
0FH
Register Name
ALC Volume
R/W
Default
D7
VOL7
R
-
D6
VOL6
R
-
D5
VOL5
R
-
D4
VOL4
R
-
D3
VOL3
R
-
D2
VOL2
R
-
D1
VOL1
R
-
D0
VOL0
R
-
VOL7-0: Current ALC volume value; 0.375dB step, 242 Level. Read operation only. (Table 42)
Addr
10H
11H
Register Name
Lch MIC Gain Setting
Rch MIC Gain Setting
R/W
Default
D7
MGL7
MGR7
R/W
1
D6
MGL6
MGR6
R/W
0
D5
MGL5
MGR5
R/W
0
D4
MGL4
MGR4
R/W
0
D3
MGL3
MGR3
R/W
0
D2
MGL2
MGR2
R/W
0
D1
MGL1
MGR1
R/W
0
D0
MGL0
MGR0
R/W
0
MGL7-0, MGR7-0: Lch and Rch Microphone Sensitivity Correction (Table 28)
Default: “80H” (0dB)
Addr
12H
Register Name
Beep Control
R/W
Default
D7
HPZ
R/W
0
D6
BPVCM
R/W
0
D5
BEEPS
R/W
0
D4
BEEPH
R/W
0
D3
BPLVL3
R/W
0
D2
BPLVL2
R/W
0
D1
BPLVL1
R/W
0
D0
BPLVL0
R/W
0
BPLVL3-0:BEEP Output Level Setting (Table 54)
Default: “0000” (0dB)
BEEPH: Signal Switch Control from the BEEP pin to Headphone Amplifier
0: OFF (default)
1: ON
BEEPS: Signal Switch Control from the BEEP pin to Speaker Amplifier
0: OFF (default)
1: ON
BPVCM: Common Voltage Setting of BEEP Input Amplifier (Table 53)
0: 1.15V (default)
1: 1.65V
HPZ: Pull-down Setting of Headphone Amplifier
0: Pull-down by a 10(typ) resistor (default)
1: Hi-Z
016001936-E-00
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2016/03