[AK4438]
■ Short Delay Slow Roll-Off Filter (SD bit = “1”, SLOW bit = “1”)
fs=44.1kHz
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
0.05dB
3.0dB
(Note 12)
(Note 16)
(Note 14)
(Note 13)
PB
PB
PR
SB
SA
GD
0
11.1
0.05
kHz
kHz
dB
kHz
dB
Passband
(Note 16)
19.4
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
-0.05
38.1
82
-
4.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0 20.0kHz
-5.06
0.1
dB
fs=96kHz
Parameter
Digital Filter
0.05dB
Symbol
Min.
Typ.
Max.
Unit
PB
PB
PR
SB
SA
GD
0
24.2
0.05
kHz
kHz
dB
kHz
dB
Passband
(Note 16)
3.0dB
(Note 12)
(Note 16)
(Note 14)
(Note 13)
42.1
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
-0.05
83.0
82
-
4.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0 20.0kHz
-5.23
0.1
dB
fs=192kH
Parameter
Digital Filter
0.05dB
Symbol
Min.
Typ.
Max.
Unit
PB
PB
PR
SB
SA
GD
0
48.4
0.05
kHz
kHz
dB
kHz
dB
Passband
(Note 16)
3.0dB
84.3
Passband Ripple
Stopband
(Note 12)
(Note 16)
(Note 14)
(Note 13)
-0.05
165.9
82
Stopband Attenuation
Group Delay
-
4.8
-
1/fs
Digital Filter + SCF + SMF (Note 14)
Frequency Response : 0 20.0kHz
-5.90
0.1
dB
Note 16. The pass band and stop band frequencies scale with fs. For example, PB=0.252×fs,
SB=0.864×fs.
016001925-E-00
2016/03
- 12 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
