參數(shù)資料
型號： AK4702
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 2CH DAC WITH AV SCART SWITCH
中文描述： 2聲道DAC，具有影音SCART開關(guān)
文件頁數(shù)： 25/38頁
文件大?。?/td> 308K
代理商： AK4702
ASAHI KASEI
[AK4702]
MS0187-E-00
2002/11
- 25 -
n
Register Map
Addr
Register Name
D7
D6
D5
D4
D3
D2
D1
D0
00H
01H
02H
03H
Control
Switch
Main Volume
Zerocross
DEM1
DEM0
DIF1
DIF0
0
0
MUTE
STBY
VMUTE
MMON
VCR1
VCR0
MONO
VOL
TV1
TV0
0
0
L5
L4
L3
L2
L1
L0
0
0
CAL
DVOL1
DVOL0
ZERO
ZTM1
ZTM0
04H
Video Switch
VRF1
VRF0
VVCR2
VVCR1
VVCR0
VTV2
VTV1
VTV0
05H
Video output enable
CIO
TVFB
VCRC
VCRV
TVB
TVG
TVR
TVV
06H
Video Volume/Clamp
0
VCLP1
VCLP0
0
CLAMP1
CLAMP0
VVOL1
VVOL0
07H
S/F Blanking control
SBIO1
SBIO0
SBV1
SBV0
SBT1
SBT0
FB1
FB0
08H
S/F Blanking monitor
0
0
0
0
0
FVCR
SVCR1
SVCR0
When the PDN pin goes “L”, the registers are initialized to their default values.
While the PDN=“H”, all registers can be accessed.
Do not write any data to the register over 08H.
n
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
Gain of Volume#1
Source of TVOUT
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
Source of TVB
Source of VCRVOUT : fixed to TVVIN(or Hi-Z),
Source of VCRC
MUTE: Audio output control
0 : Normal Operation
1 : ALL Audio outputs to GND (default)
DIF1-0: Audio data interface format control
00 : 16bit LSB Justified
01 : 18bit LSB Justified
10 : 18bit MSB Justified
11 : 18bit 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
0
D2
0
D1
D0
DEM1
DEM0
MUTE
STBY
R/W
0
1
1
1
0
0
1
1
: powered down and timings are reset.
: fixed to 0dB,
: fixed to VCRIN,
: fixed to VCRG(or Hi-Z),
: fixed to VCRB(or Hi-Z),
: fixed to Hi-Z or VSS(controlled by CIO bit).
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