[AK4438]
■ Short Delay Sharp Roll-Off Filter (SD bit = “1”, SLOW bit = “0”)
fs=44.1kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
0.05dB
3.0dB
(Note 12)
(Note 11)
(Note 14)
(Note 13)
PB
PB
PR
SB
SA
GD
0
20.0
kHz
kHz
dB
kHz
dB
Passband
(Note 11)
21.5
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
-0.0031
0.0031
24.1
80
-
5.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0 20.0kHz
-0.26
0.1
dB
fs=96kHz
Parameter
Digital Filter
0.05dB
Symbol
Min.
Typ.
Max.
Unit
PB
PB
PR
SB
SA
GD
0
43.5
kHz
kHz
dB
kHz
dB
Passband
(Note 11)
3.0dB
(Note 12)
(Note 11)
(Note 14)
(Note 13)
46.8
0
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
-0.0031
0.0031
52.5
80
-
5.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0 20.0kHz
-0.53
0.1
dB
fs=192kHz
Parameter
Digital Filter
0.05dB
Symbol
Min.
Typ.
Max.
Unit
PB
PB
PR
SB
SA
GD
0
87.0
kHz
kHz
dB
kHz
dB
Passband
(Note 11)
3.0dB
(Note 12)
(Note 11)
(Note 14)
(Note 13)
93.6
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
-0.0031
0.0031
105
80
-
5.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0 20.0kHz
-1.9
0.1
dB
016001925-E-00
2016/03
- 11 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
