AK4702EQ Datasheet, PDF (25/39 Pages) Asahi Kasei Microsystems – 2ch DAC with AV SCART switch

ASAHI KASEI
[AK4702EQ]
„ Register Map
Addr
Register Name
D7
D6
D5
D4
D3
00H Control
01H Switch
02H Main Volume
03H Zerocross
DEM1
VMUTE
0
0
DEM0
MMON
0
0
DIF1
VCR1
L5
CAL
DIF0
VCR0
L4
DVOL1
0
MONO
L3
DVOL0
04H Video Switch
VRF1
VRF0 VVCR2 VVCR1 VVCR0
05H Video output enable
CIO
TVFB
VCRC
VCRV
TVB
06H Video Volume/Clamp
0
VCLP1 VCLP0
0
CLAMP1
07H S/F Blanking control
SBIO1
SBIO0
SBV1
SBV0
SBT1
08H S/F Blanking monitor
0
0
0
0
0
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.
D2
0
VOL
L2
ZERO
VTV2
TVG
CLAMP0
SBT0
FVCR
D1
MUTE
TV1
L1
ZTM1
VTV1
TVR
VVOL1
FB1
SVCR1
D0
STBY
TV0
L0
ZTM0
VTV0
TVV
VVOL0
FB0
SVCR0
„ Register Definitions
Addr
00H
Register Name
Control
R/W
default
D7
DEM1
0
D6
DEM0
1
D5
DIF1
1
D4
D3
DIF0
0
R/W
1
0
D2
D1
D0
0
MUTE STBY
0
1
1
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)
DIF1-0: Audio data interface format control
00 : 16bit LSB Justified
01 : 18bit LSB Justified
10 : 18bit MSB Justified
11 : 18bit I²S Compatible (Default)
DEM1-0: De-emphasis Response Control
00 : 44.1kHz
01 : off (Default)
10 : 48kHz
11 : 32kHz
MS0424-E-00
- 25 -
2005/09