ak4538 AKM Semiconductor, Inc., ak4538 Datasheet - Page 50

• Manufacturer Part Number: ak4538
• Description: 16bit ?? Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0198-E-01
Addr
06H
DEM1-0: De-emphases response (see Table 19)
BST1-0: Select Low Frequency Boost Function (see Table 20)
DATTC: DAC Digital Attenuator Control Mode Select
SMUTE: Soft Mute Control
TM1-0: Soft Mute Time Select (see Table 26)
Default is “01” (OFF).
Default is “00” (OFF).
0: ATTL7-0 and ATTR7-0 bits control the attenuator level of Lch and Rch respectively.
1: ATTL7-0 bits control both Lch and Rch at same time. (Default)
0: Normal Operation (Default)
1: DAC outputs soft-muted
Soft mute operation is independent of digital attenuator and is performed in the digital domain.
Default: “00” (1024/fs)
Register Name
DAC Control
ATTR7-0 bits are not changed when the ATTL7-0 bits are written.
Default
R/W
TM1
TM1
R/W
0
0
1
1
D7
0
Table 26. Soft Mute Time Setting
TM0
R/W
TM0
D6
0
0
1
0
1
- 50 -
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
[AK4538]
DEM0
2003/5
R/W
D0
1