參數(shù)資料
型號: AK4382
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 112dB 192kHz 24-BIT SCH DAC
中文描述: 一一二分貝192kHz的24位三星援
文件頁數(shù): 17/21頁
文件大?。?/td> 251K
代理商: AK4382
ASAHI KASEI
[AK4382]
MS0034-E-00
2000/7
- 17 -
n
Register Definitions
Addr
00H
Register Name
Control 1
default
D7
D6
0
0
D5
0
0
D4
DIF2
0
D3
DIF1
1
D2
DIF0
0
D1
PW
1
D0
ACKS
1
RSTN
1
RSTN: Internal timing reset control
0: Reset. All registers are not initialized.
1: Normal Operation
When MCLK frequency or DFS changes, the AK4382 should be reset by PDN pin or RSTN bit.
PW: Power down control
0: Power down. All registers are not initialized.
1: Normal Operation
DIF2-0: Audio data interface formats (see Table 7)
Initial: “010”, Mode 2
ACKS: Master Clock Frequency Auto Setting Mode Enable
0: Disable, Manual Setting Mode
1: Enable, Auto Setting Mode
Master clock frequency is detected automatically 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.
Addr
01H
Register Name
Control 2
default
D7
D6
D5
D4
DFS1
0
D3
DFS0
0
D2
D1
D0
DZFE
0
DZFM
0
SLOW
0
DEM1
0
DEM0
1
SMUTE
0
SMUTE: Soft Mute Enable
0: Normal operation
1: DAC outputs soft-muted
DEM1-0: De-emphasis Response (see Table 8)
Initial: “01”, OFF
DFS1-0: Sampling speed control
00: Normal speed
01: Double speed
10: Quad speed
When changing between Normal/Double Speed Mode and Quad Speed Mode, some click noise occurs.
SLOW: Slow Roll-off Filter Enable
0: Sharp Roll-off Filter
1: Slow Roll-off Filter
DZFE: Data Zero Detect Enable
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”.
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