ak4382a AKM Semiconductor, Inc., ak4382a Datasheet - Page 17

• Manufacturer Part Number: ak4382a
• Description: 112db 192khz 24-bit 2ch Ds Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Register Definitions
MS0071-E-02
Addr
Addr
00H
01H
SLOW: Slow Roll-off Filter Enable
RSTN: Internal timing reset control
PW: Power down control
DIF2-0: Audio data interface formats (see Table 7)
ACKS: Master Clock Frequency Auto Setting Mode Enable
SMUTE: Soft Mute Enable
DEM1-0: De-emphasis Response (see Table 8)
DFS1-0: Sampling speed control
DZFE: Data Zero Detect Enable
Control 1
Control 2
default
default
Register Name
Register Name
0: Reset. All registers are not initialized.
1: Normal Operation
When MCLK frequency or DFS change s , the AK4382A should be reset by PDN pin or RSTN bit.
0: Power down . All registers are not initialized.
1: Normal Operation
Initial: “010”, Mode 2
0: Disable, Manual Setting Mode
1: Enable, Auto Setting Mode
Master clock frequency is detected a utomatically at ACKS bit “ 1”. In this case, the setting of DFS1-0 are
ignored. When this bit is “0”, DFS1-0 set the sampling speed mode.
0: Normal operation
1: DAC outputs soft-muted
Initial: “01”, OFF
00: Normal speed
01: Double speed
10: Quad speed
When changing between Normal/Double Speed Mode and Quad Speed Mode, some click noise occurs.
0: Sharp Roll-off Filter
1: Slow Roll -off Filter
0: Disable
1: Enable
Zero detect function can be disabled by DZFE bit “0”. In this case, the DZF pins of both channels are
always “L”.
ACKS
DZFE
D7
D7
1
0
DZFM
D6
D6
0
0
0
SLOW
D5
D5
0
0
0
- 17 -
DFS1
DIF2
D4
D4
0
0
DFS0
DIF1
D3
D3
1
0
DEM1
DIF0
D2
D2
0
0
DEM0
PW
D1
D1
1
1
[AK4382A]
SMUTE
RSTN
2002/12
D0
D0
1
0