參數(shù)資料
型號(hào): AK4704
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 2ch 24bit DAC with AV SCART switch
中文描述: 2通道24位DAC,具有影音SCART開關(guān)
文件頁(yè)數(shù): 33/44頁(yè)
文件大?。?/td> 440K
代理商: AK4704
ASAHI KASEI
AKM CONFIDENTIAL
[AK4704]
Rev. 0.5
2004/1
- 33 -
Register Definitions
Addr
Register Name
00H
Control
R/W
default
STBY: Standby control
0 : Normal Operation
1 : Standby Mode(default). All registers are not initialized.
DAC : powered down and timings are reset.
Gain of Volume#1 : fixed to 0dB,
Source of TVOUT : fixed to VCRIN,
Source of VCROUT : fixed to TVIN,
Source of MONOOUT : fixed to VCRIN,
Source of TVVOUT : fixed to VCRVIN(or Hi-Z),
Source of TVRC : fixed to VCRRC(or Hi-Z),
Source of TVG : fixed to VCRG(or Hi-Z),
Source of TVB : fixed to VCRB(or Hi-Z),
Source of VCRVOUT : fixed to TVVIN(or Hi-Z),
Source of VCRC : fixed to Hi-Z or VSS(controlled by CIO bit).
MUTE: Audio output control
0 : Normal operation
1 : ALL Audio outputs to GND (default)
DAPD: DAC power down control
0 : Normal operation (default).
1 : DAC power down.
When DAPD bit = “1”, the zero-cross detection and offset calibration does not work.
AUTO: Auto startup bit
0 : Auto startup disable (Manual startup).
1 : Auto startup enable(default).
Note: When the SBIO1bit = “1”(default= “0”), the change of AUTO bit may cause a “L” pulse on INT pin.
DIF1-0: Audio data interface format control
00 : 16bit LSB Justified
01 : 18bit LSB Justified
10 : 24bit MSB Justified
11 : 24bit I
2
S Compatible (Default)
DEM1-0: De-emphasis Response Control
00 : 44.1kHz
01 : off (Default)
10 : 48kHz
11 : 32kHz
D7
D6
D5
DIF1
D4
DIF0
D3
D2
D1
D0
DEM1
DEM0
AUTO
DAPD
MUTE
STBY
R/W
0
1
1
1
1
0
1
1
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