ak4380 AKM Semiconductor, Inc., ak4380 Datasheet - Page 17

• Manufacturer Part Number: ak4380
• Description: 100db 24bit 96khz 2ch Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Register Map
Notes: For addresses from 02H to 1FH, data must not be written.
n Register Definitions
MS0018-E-01
Addr
Addr
Addr
00H
01H
00H
01H
RSTN: Internal timing reset control
PW: Power down control
DIF2-0: Audio data interface formats (see Table 4)
SMUTE: Soft Mute Enable
DEM1-0: De-emphasis Response Control (see Table 6)
DFS: Sampling Speed Control (see Table 1)
When PDN pin goes “L”, the registers are initialized to their default values.
When RSTN bit goes “0”, the only internal timing is reset and the registers are not initialized to their default values.
All data can be written to the register even if PW or RSTN bit is “0”.
Control 1
Control 2
Control 1
Control 2
default
default
Register Name
Register Name
Register Name
1: Normal Operation
0: Reset. All registers are not initialized.
1: Normal Operation
When MCLK frequency or DFS changes, the AK4380 should be reset by PDN pin or RSTN bit.
0: Power down. All registers are not initialized.
Initial: “011”, Mode 3
0: Normal operation
1: DAC outputs soft-muted
Initial: “01”, OFF
0: Normal speed, 8kHz~48kHz
1: Double speed, 8kHz~96kHz
D7
D7
D7
0
0
0
0
0
0
D6
D6
D6
0
0
0
0
0
0
D5
D5
D5
0
0
0
0
0
0
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DIF2
DIF2
D4
D4
D4
0
0
0
0
DIF1
DIF1
DFS
DFS
D3
D3
D3
1
0
DEM1
DEM1
DIF0
DIF0
D2
D2
D2
0
1
DEM0
DEM0
PW
PW
D1
D1
D1
1
1
[AK4380]
SMUTE
SMUTE
RSTN
RSTN
2000/8
D0
D0
D0
1
0