AK4458VN Datasheet, PDF (70/83 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 8ch Premium DAC

[AK4458]
■ Register Definitions
Addr Register Name
00H Control 1
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
ACKS
0
0
0
DIF2
DIF1
DIF0 RSTN
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
1
1
0
0
RSTN: Internal Timing Reset
0: Reset. All registers are not initialized. (default)
1: Normal Operation
Internal clock timings are reset but registers are not reset.
DIF2-0: Audio Data Interface Modes (Table 13)
Default value is “110” (Mode 6: 32-bit MSB justified).
Be careful because Format varies in TDM1 and TDM0.
ACKS: Master Clock Frequency Auto Setting Mode Enable (PCM only)
0: Disable : Manual Setting Mode (default)
1: Enable : Auto Setting Mode
When ACKS bit = “1”, the sampling frequency and MCLK frequency are detected automatically.
Addr Register Name
01H Control 2
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
SD
DFS1
DFS0 DEM11 DEM10 SMUTE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
1
0
SMUTE: Soft Mute Enable.
0: Normal Operation (default)
1: DAC outputs soft-muted.
DEM11-0: DAC1 De-emphasis Response (Table 17)
Default value is “01” (OFF).
DFS2-0: Sampling Speed Control (Table 2)
Default value is “000” (Normal Speed). A click noise occurs when switching DFS2-0 bits setting.
DFS2 is address 05H
SD: Short delay Filter Enable. (Table 12)
0: Sharp roll-off filter
1: Short delay filter (default)
014011794-E-00
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2015/01