AK4566 Datasheet, PDF (34/45 Pages) Asahi Kasei Microsystems – 20bit Stereo CODEC with built-in IPGA & HP-AMP

ASAHI KASEI
AKM CONFIDENTIAL
[AK4566]
Addr Register Name
07H DAC Control
Default
D7
TM1
0
D6
TM0
0
D5
SMUTE
0
D4
DATTC
0
D3
BST1
0
D2
BST0
0
D1
DEM1
0
D0
DEM0
1
DEM1-0: De-emphasis Filter Frequency Select
DEM1 DEM0 De-emphasis
0
0
44.1kHz
0
1
OFF
Default
1
0
48kHz
1
1
32kHz
Table 16. De-emphasis Filter Frequency Select
BST1-0: Low Frequency Boost Function Select
BST1 BST0
BOOST
0
0
OFF
Default
0
1
MIN
1
0
MID
1
1
MAX
Table 17. Low Frequency Boost Select
DATTC: DAC Digital Attenuator Control Mode Select
0: Independent (Default)
1: Dependent
At DATTC= “1”, ATTL7-0 bits control both Lch and Rch attenuation level, while register values of
ATTL7-0 bits are not written to ATTR7-0 bits. At DATTC= “0”, ATTL7-0 bits control Lch level and
ATTR7-0 bits control Rch level.
SMUTE: Soft Mute Control
0: Normal operation (Default)
1: DAC outputs soft-muted
TM1-0: Soft Mute Time Select
TM1 TM0
Cycle
0
0
1024/fs
Default
0
1
512/fs
1
0
256/fs
1
1
128/fs
Table 18. Soft Mute Time Setting
REV 0.5
- 34 -
2002/2