[AK4372]
Addr Register Name
0DH Headphone Out Select
D7
0
D6
0
D5
0
D4
0
D3
0
D2
0
D1
LINHR
R/W
0
D0
RINHL
R/W
0
R/W
Default
RD
0
RD
0
RD
0
RD
0
RD
0
RD
0
RINHL: RIN signal is added to the left channel of the Headphone-Amp
0: OFF (default)
1: ON
LINHR: LIN signal is added to the right channel of the Headphone-Amp
0: OFF (default)
1: ON
Addr Register Name
0EH Headphone ATT
R/W
D7
0
D6
HPZ
R/W
0
D5
HMUTE
R/W
0
D4
ATTH4
R/W
0
D3
ATTH3
R/W
0
D2
ATTH2
R/W
0
D1
ATTH1
R/W
0
D0
ATTH0
R/W
0
RD
0
Default
ATTH4-0: Setting of the attenuation value of output signal from Headphone (Table 25)
Default: HMUTE bit = “0”, ATTH4-0 bits = “00” (0dB)
Setting of ATTH4-0 bits is enabled at HMUTE bit is “0”.
HMUTE: Mute control for Headphone-Amp (Table 25)
0: Normal operation. ATTH4-0 bits control attenuation value. (default)
1: Mute. ATTH4-0 bits are ignored.
HPZ: Headphone-Amp Pull-down Control
0: Shorted to GND (default)
1: Pulled-down by 200kΩ (typ)
MS0684-E-02
2008/12
- 57 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
