[AK4679]
Addr Register Name
17H Mode Control 0
R/W
D7
0
R
0
D6
0
R
0
D5
SDIM1
R/W
0
D4
SDIM0
R/W
0
D3
5EQ
R/W
0
D2
ADM
R/W
0
D1
IVOLC
R/W
1
D0
ALC
R/W
0
Default
ALC: ALC Enable
0: ALC Disable (default)
1: ALC Enable
IVOLC: Input Digital Volume Control Mode Select
0: Independent
1: Dependent (default)
When IVOLC bit = “1”, IVL7-0 bits control both Lch and Rch volume level, while register values of IVL7-0
bits are not written to IVR7-0 bits. When IVOLC bit = “0”, IVL7-0 bits control Lch level and IVR7-0 bits
control Rch level, respectively.
ADM: Mono Recording (Table 79)
0: Stereo (default)
1: Mono: (L+R)/2
5EQ: Select 5-Band Equalizer
0: OFF (default)
1: ON
SDIM1-0: SDTI Input Signal Select (Table 84)
Default: “00” (L=Lch, R=Rch)
Addr Register Name
18H Mode Control 0
R/W
D7
0
R
0
D6
OVTMB
R/W
D5
BIV2
R/W
0
D4
BIV1
R/W
0
D3
BIV0
R/W
0
D2
SMUTE
R/W
0
D1
OVTM
R/W
1
D0
OVOLC
R/W
1
Default
1
OVOLC: Output Digital Volume Control Mode Select
0: Independent
1: Dependent (default)
When OVOLC bit = “1”, OVL6-0 bits control both Lch and Rch volume level, while register values of
OVL6-0 bits are not written to OVR6-0 bits. When OVOLC bit = “0”, OVL6-0 bits control Lch level and
OVR6-0 bits control Rch level, respectively.
OVTM: Digital Volume Transition Time Setting
0: 128/fs
1: 256/fs (default)
This is the transition time between OVL/R6-0 bits = 00H and 7FH.
SMUTE: Soft Mute Control
0: Normal Operation (default)
1: DAC outputs soft-muted
BIV2-0: SDTIB Input Volume Control (Table 75)
Default: “0H” (0dB)
OVTMB: Digital Volume Control (DATT-B and DATT-C) Transition Time Setting
0: 128/fs
1: 256/fs (default)
This is the transition time between BVL6-0 bits or CVL6-0 bits = 00H and 7FH.
MS1402-E-06
2013/02
- 167 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
