ASAHI KASEI
[AK4644]
Addr Register Name
D7
0
0
D6
0
0
D5
0
0
D4
0
0
D3
IVOLC
1
D2
HPM
0
D1
MINH
0
D0
DACH
0
0FH
Mode Control 4
Default
DACH: Switch Control from DAC to Headphone-Amp
0: OFF (Default)
1: ON
MINH: Switch Control from MIN pin to Headphone-Amp
0: OFF (Default)
1: ON
HPM: Headphone-Amp Mono Output Select
0: Stereo (Default)
1: Mono
When the HPM bit = “1”, DAC output signal is output to Lch and Rch of the Headphone-Amp as (L+R)/2.
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.
MS0477-E-01
2006/10
- 73 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
