ak4569 AKM Semiconductor, Inc., ak4569 Datasheet - Page 34

• Manufacturer Part Number: ak4569
• Description: 20-bit Stereo Codec With Ipga & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0292-E-01
Addr
07H
DATTC: DAC Digital Attenuator Control Mode Select
SMUTE: Soft Mute Control
DEM1-0: De-emphasis Filter Frequency Select
BST1-0: Low Frequency Boost Function Select
TM1-0: Soft Mute Time Select
Register Name
DAC Control
Default
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.
0: Normal operation (Default)
1: DAC outputs soft-muted
DEM1
Table 16. De-emphasis Filter Frequency Select
BST1
TM1
TM1
0
0
1
1
0
0
1
1
0
0
1
1
D7
Table 17. Low Frequency Boost Select
0
Table 18. Soft Mute Time Setting
DEM0
BST0
TM0
TM0
D6
0
1
0
1
0
1
0
1
0
1
0
1
0
SMUTE
De-emphasis
- 34 -
D5
44.1kHz
0
BOOST
1024/fs
48kHz
32kHz
512/fs
256/fs
128/fs
MAX
Cycle
MIN
MID
OFF
OFF
DATTC
D4
0
Default
Default
Default
BST1
D3
0
BST0
D2
0
DEM1
D1
0
[AK4569]
2005/07
DEM0
D0
1