[AK4480]
SHARP 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 =“0”,
SD bit=“0”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
PB
0
-
20.0
kHz
±0.05dB
PB
0
20.0
kHz
Frequency Response
−6.0dB
-
22.05
-
kHz
Stopband
SB
24.1
kHz
Passband Ripple
PR
-0.005
+0.0001
dB
Stopband Attenuation
SA
70
dB
Group Delay
GD
-
27
-
1/fs
Digital Filter + SCF
Frequency Response: 0
∼
20.0kHz
-0.2
-
+0.2
dB
SHARP ROLL-OFF FILTER CHARACTERISTICS (fs = 96kHz)
(Ta=25°C; AVDD=VDDL/R=4.75
∼
5.25V, DVDD=4.75
∼
5.25V; Double Speed Mode; DEM=OFF; SLOW bit =“0”,
SD bit=“0”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband (Note
PB
0
-
43.5
kHz
Frequency Response
±0.05dB
0
-
43.5
kHz
−6.0dB
-
48.0
-
kHz
Stopband
SB
52.5
-
kHz
Passband Ripple
PR
-0.005
-
+0.0001
dB
Stopband Attenuation
SA
70
-
-
dB
Group Delay
GD
-
27
-
1/fs
Digital Filter + SCF
Frequency Response: 0
∼
40.0kHz
-0.3
-
+0.3
dB
SHARP 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 =“0”, SD
bit=“0”)
Parameter
Symbol
min
typ
max
Unit
Digital Filter
Passband
PB
0
-
87.0
kHz
Frequency Response
±0.05dB
0
87.0
kHz
−6.0dB
-
96.0
-
kHz
Stopband
SB
105
kHz
Passband Ripple
PR
-0.005
-
+0.0001
dB
Stopband Attenuation
SA
70
-
-
dB
Group Delay
GD
-
27
-
1/fs
Digital Filter + SCF
Frequency Response: 0
∼
80.0kHz
-1
-
+0.1
dB
Note 12. The passband and stopband frequencies scale with fs. For example, PB=0.4535×fs (@±0.01dB), SB=0.546×fs.
Note 13. The calculating delay time which occurred by digital filtering. This time is from setting the 16/20/24/32bit data
of both channels to input register to the output of analog signal.
MS1146-E-03
-8-
2012/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
