AK4640_05 AKM [Asahi Kasei Microsystems], AK4640_05 Datasheet - Page 54

• Manufacturer Part Number: AK4640_05
• Description: 16-Bit ?? CODEC with MIC/HP/SPK-AMP
• Manufacturer: AKM [Asahi Kasei Microsystems]

ASAHI KASEI
MS0273-E-02
Addr
06H
DEM1-0: De-emphases response (Table 16)
BST1-0:
DATTC: DAC Digital Attenuator Control Mode Select
SMUTE: Soft Mute Control
TM1-0:
0: Independent
1: Dependent (Default)
0: Normal Operation (Default)
1: DAC outputs soft-muted
Register Name
DAC Control
Default is “01” (OFF).
Default is “00” (OFF).
When DATTC= “1”, ATTL7-0 bits control both Lch and Rch at same time. ATTR7-0 bits are not changed
when the ATTL7-0 bits are written.
Soft mute operation is independent of digital attenuator and is performed in the digital domain.
Default: “00” (1024/fs)
Select Low Frequency Boost Function (Table 17)
Soft Mute Time Select (Table 24)
Default
R/W
TM1
TM1
R/W
0
0
1
1
D7
0
Table 24. Soft Mute Time Setting
TM0
R/W
TM0
D6
0
1
0
1
0
- 54 -
SMUTE
R/W
D5
0
1024/fs
512/fs
256/fs
128/fs
Cycle
DATTC
R/W
D4
1
Default
BST1
R/W
D3
0
BST0
R/W
D2
0
DEM1
R/W
D1
0
[AK4640]
2005/04
DEM0
R/W
D0
1