[AK4397]
SLOW ROLL-OFF FILTER CHARACTERISTICS (fs = 44.1kHz)
(Ta=25°C; AVDD=VDDL/R=4.75 ∼ 5.25V, DVDD=4.75 ∼ 5.25V; Normal Speed Mode; DEM=OFF; SLOW bit=“1”)
Parameter
Digital Filter
Passband
Symbol
min
typ
max
Units
(Note 15) ±0.04dB
−3.0dB
PB
0
-
39.2
8.1
-
kHz
kHz
kHz
dB
dB
1/fs
18.2
Stopband
(Note 15)
SB
PR
SA
GD
Passband Ripple
Stopband Attenuation
Group Delay
±0.005
72
-
(Note 14)
28
-
Digital Filter + SCF
Frequency Response: 0 ∼ 20.0kHz
-
+0/−5
-
dB
SLOW ROLL-OFF FILTER CHARACTERISTICS (fs = 96kHz)
(Ta=25°C; AVDD=VDDL/R=4.75 ∼ 5.25V, DVDD=4.75 ∼ 5.25V; DEM=OFF; SLOW bit=“1”)
Parameter
Digital Filter
Passband
Symbol
min
typ
max
Units
(Note 15) ±0.04dB
−3.0dB
PB
0
-
85.3
17.7
-
kHz
kHz
kHz
dB
dB
1/fs
39.6
Stopband
(Note 15)
SB
PR
SA
GD
Passband Ripple
Stopband Attenuation
Group Delay
±0.005
72
-
(Note 14)
28
-
Digital Filter + SCF
Frequency Response: 0 ∼ 40.0kHz
-
+0/−4
-
dB
SLOW ROLL-OFF FILTER CHARACTERISTICS (fs = 192kHz)
(Ta=25°C; AVDD=VDDL/R=4.75 ∼ 5.25V, DVDD=4.75 ∼ 5.25V; Quad Speed Mode; DEM=OFF; SLOW bit=“1”)
Parameter
Digital Filter
Passband
Symbol
min
typ
max
Units
(Note 15) ±0.04dB
−3.0dB
PB
0
-
171
35.5
-
kHz
kHz
kHz
dB
dB
1/fs
79.1
Stopband
(Note 15)
SB
PR
SA
GD
Passband Ripple
Stopband Attenuation
Group Delay
±0.005
72
-
(Note 14)
28
-
Digital Filter + SCF
Frequency Response: 0 ∼ 80.0kHz
-
+0/−5
-
dB
Note 15. The passband and stopband frequencies scale with fs. For example, PB = 0.185×fs (@±0.04dB), SB = 0.888×fs.
MS0616-E-00
2007/05
- 10 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
