[AK4492]
Addr Register Name
01H Control 2
R/W
D7
DZFE
R/W
0
D6
DZFM
R/W
0
D5
SD
R/W
1
D4
DFS1
R/W
0
D3
DFS0
R/W
0
D2
DEM1
R/W
0
D1
D0
DEM0
R/W
1
SMUTE
R/W
0
Default
SMUTE: Soft Mute Enable
0: Normal Operation (default)
1: DAC outputs soft-muted.
DEM[1:0]: De-emphasis Control (Table 30)
Initial value is “01” (OFF).
DFS[1:0]: Sampling Speed Control. (Table 7, Table 11)
Initial value is “000” (Normal Speed). Click noise occurs when DFS[2:0] bits are changed.
SD: Minimum delay Filter Enable. (Table 28)
0: Traditional filter
1: Short delay filter (default)
DZFM: Data Zero Detect Mode
0: Channel Separated Mode (default)
1: Channel ANDed Mode
If the DZFM bit is set to “1”, the DZF pins of both L and R channels go to “H” only when the
input data at both channels are continuously zeros for 8192 LRCK cycles.
DZFE: Data Zero Detect Enable
0: Disable (default)
1: Enable
Zero detect function can be disabled by DZFE bit “0”. In this case, the DZF pins of both
channels are always “L”.
016011073-E-00
2016/12
- 85 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
