AK4358_06 Datasheet, PDF (29/36 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit 8ch DAC with DSD Input

ASAHI KASEI
[AK4358]
Addr Register Name
D7
02H
Speed &
Control
Power
Down
0
Default
0
D6
D5
D4
D3
PW4 DFS1 DFS0 PW3
1
0
0
1
D2
PW2
1
D1
D0
PW1 RSTN
1
1
RSTN: Internal timing reset
0: Reset. All DZF pins go to “H” and any registers are not initialized.
1: Normal operation
When MCLK frequency or DFS changes, the AK4358 should be reset by PDN pin or RSTN bit.
PW4-1: Power-down control (0: Power-down, 1: Power-up)
PW1: Power down control of DAC1
PW2: Power down control of DAC2
PW3: Power down control of DAC3
PW4: Power down control of DAC4
All sections are powered-down by PW1=PW2=PW3=PW4=0.
DFS1-0: Sampling speed control (See Table 2, PCM Only)
00: Normal speed
01: Double speed
10: Quad speed
When changing between Normal/Double Speed Mode and Quad Speed Mode, some click noise occurs.
Addr Register Name
03H De-emphasis Control
Default
D7 D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
DEM1 DEM0
0
0
0
0
0
0
0
1
DEM1-0: De-emphasis response control for DAC1/2/3/4 data on SDTI1/2/3/4 (See Table 13, PCM only)
Initial: “01”, OFF
Addr
04H
05H
06H
07H
08H
09H
0BH
0CH
Register Name
LOUT1 ATT Control
ROUT1 ATT Control
LOUT2 ATT Control
ROUT2 ATT Control
LOUT3 ATT Control
ROUT3 ATT Control
LOUT4 ATT Control
ROUT4 ATT Control
Default
D7
ATTE
ATTE
ATTE
ATTE
ATTE
ATTE
ATTE
ATTE
1
D6
ATT6
ATT6
ATT6
ATT6
ATT6
ATT6
ATT6
ATT6
1
D5
ATT5
ATT5
ATT5
ATT5
ATT5
ATT5
ATT5
ATT5
1
D4
ATT4
ATT4
ATT4
ATT4
ATT4
ATT4
ATT4
ATT4
1
D3
ATT3
ATT3
ATT3
ATT3
ATT3
ATT3
ATT3
ATT3
1
D2
ATT2
ATT2
ATT2
ATT2
ATT2
ATT2
ATT2
ATT2
1
D1
ATT1
ATT1
ATT1
ATT1
ATT1
ATT1
ATT1
ATT1
1
D0
ATT0
ATT0
ATT0
ATT0
ATT0
ATT0
ATT0
ATT0
1
ATT6-0: Attenuation Level
128 levels, 0.5dB step (See Table 14)
ATTE: Attenuation Output Enable
0: Disable
1: Enable
MS0203-E-01
- 29 -
2006/02