ASAHI KASEI
[AK4528]
Addr Register Name
D7
0
0
D6
ATTL6
ATTR6
1
D5
ATTL5
ATTR5
1
D4
ATTL4
ATTR4
1
D3
ATTL3
ATTR3
1
D2
ATTL2
ATTR2
1
D1
ATTL1
ATTR1
1
D0
ATTL0
ATTR0
1
04H
05H
Lch OATT Control
Rch OATT Control
default
0
ATTL/R6-0: DAC ATT Level (see Table 8)
Default : 7FH (0dB)
The OATTs are set to “00H” when PDN pin goes “L”. After returning to “H”, the OATTs fade in the
initial value, “7FH” by 8031 cycles. The OATTs are set to “00H” when PWDA goes “0”. After returning to
“1”, the OATTs fade in the current value. The OATTs are set to “00H” when RSTDAN goes “0”. Afer
returning to “1”, the OATTs fade in the current value.
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
2
1.8
1.6
1.4
1.2
1
ATT (dB)
0.8
0.6
0.4
0.2
0
Step (dB)
127
111
95
79
63
47
31
15
Input Data(Level)
Figure 10. ATT characteristics
MS0011-E-00
2000/1
- 22 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
