AK4356 Datasheet, PDF (24/29 Pages) Asahi Kasei Microsystems – 192kHz 24 Bit IX-CHANNEL DAC FOR DVD-AUDIO

ASAHI KASEI
[AK4356]
Addr
04H
05H
06H
07H
08H
09H
Register Name
LOUT1 ATT Control
ROUT1 ATT Control
LOUT2 ATT Control
ROUT2 ATT Control
LOUT3 ATT Control
ROUT3 ATT Control
Default
D7
ATT7
ATT7
ATT7
ATT7
ATT7
ATT7
1
D6
ATT6
ATT6
ATT6
ATT6
ATT6
ATT6
1
D5
ATT5
ATT5
ATT5
ATT5
ATT5
ATT5
1
D4
ATT4
ATT4
ATT4
ATT4
ATT4
ATT4
1
D3
ATT3
ATT3
ATT3
ATT3
ATT3
ATT3
1
D2
ATT2
ATT2
ATT2
ATT2
ATT2
ATT2
1
D1
ATT1
ATT1
ATT1
ATT1
ATT1
ATT1
1
D0
ATT0
ATT0
ATT0
ATT0
ATT0
ATT0
1
ATT7-0: Attenuation Level
256 levels, 0.5dB step
ATT7-0
FFH
FEH
FDH
:
:
02H
01H
00H
Attenuation
0dB
-0.5dB
-1.0dB
:
:
-126.5dB
-127.0dB
MUTE (-Â¥)
The transition between set values is soft transition of 7425 levels. It takes 7424/fs (168ms@fs=44.1kHz) from
FFH(0dB) to 00H(MUTE).
If PDN pin goes to “L”, the ATTs are initialized to FFH.
The ATTs are FFH when RSTN = “0”. When RSTN return to “1”, the ATTs fade to their current value.
Digital attenuator is independent of soft mute function.
Addr Register Name
0AH Test Mode
Default
TEST4-0: Test mode
D7 D6
0
0
0
0
D5
D4
D3
D2
D1
D0
0 TEST4 TEST3 TEST2 TEST1 TEST0
0
0
0
0
0
0
M0072-E-01
- 24 -
1999/09