AK4524_12 Datasheet, PDF (24/32 Pages) Asahi Kasei Microsystems – 24Bit 96kHz Audio CODEC

[AK4524]
Addr
06H
07H
Register Name
Lch OATT Control
Rch OATT Control
RESET
D7
D6
D5
D4
D3
D2
D1
D0
0
ATTL6 ATTL5 ATTL4 ATTL3 ATTL2 ATTL1 ATTL0
0
ATTR6 ATTR5 ATTR4 ATTR3 ATTR2 ATTR1 ATTR0
0
1
1
1
1
1
1
1
ATTL/R6-0: DAC ATT Level
Refer to Table 11
Initial: 7FH (0dB)
The AK4524 includes digital ATT with 128 levels equivalent to ADC’s.
The OATTs are set to “00H” when PD 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 RSTDA goes “0”. Afer returning to “1”, the OATTs fade in the current
Value.
0
2
-10
1.8
-20
ATT (dB)
1.6
-30
1.4
-40
1.2
-50
1
-60
Step (dB)
0.8
-70
0.6
-80
0.4
-90
0.2
-100
0
127 111 95
79
63
47
31
15
Input Data(Level)
Figure 9. ATT characteristics
M0050-E-04
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2012/01