參數(shù)資料
型號(hào)： AK4340
廠(chǎng)商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 192kHz 24-Bit Stereo DAC with 2Vrms Output
中文描述： 192kHz的24位立體聲DAC 2Vrms的輸出
文件頁(yè)數(shù)： 16/21頁(yè)
文件大?。?/td> 265K
代理商： AK4340
ASAHI KASEI
AKM CONFIDENTIAL
[AK4340]
Rev.0.6
2005/11
- 16 -
Register Definitions
Addr
Register Name
00H
Control 1
default
RSTN: Internal timing reset control
0: Reset. All registers are not initialized.
1: Normal Operation
When MCLK frequency or DFS changes, the click noise can be reduced by 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 5)
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 settings of DFS1-0
are ignored. When this bit is “0”, DFS1-0 set the sampling speed mode.
Addr
Register Name
D7
D6
D5
01H
Control 2
0
0
0
default
0
0
0
SMUTE: Soft Mute Enable
0: Normal operation
1: DAC outputs soft-muted
DEM1-0: De-emphasis Response (see Table 7)
Initial: “01”, OFF
DFS1-0: Sampling speed control
00: Normal Speed Mode
01: Double Speed Mode
10: Quad Speed Mode
When changing between Normal/Double Speed Mode and Quad Speed Mode, some click noise
occurs.
D7
ACKS
1
D6
0
0
D5
0
0
D4
DIF2
0
D3
DIF1
1
D2
DIF0
0
D1
PW
1
D0
RSTN
1
D4
DFS1
0
D3
DFS0
0
D2
D1
D0
DEM1
0
DEM0
1
SMUTE
0
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