ASAHI KASEI
[AK4556]
FILTER CHARACTERISTICS (fs=96kHz)
(Ta= -40
∼
+85°C; VA, VD=2.4∼ 3.6V; DEM=OFF)
Parameter
Symbol
min
typ
ADC Digital Filter (Decimation LPF):
Passband
(Note 11)
±0.1dB
PB
0
-
−0.2dB
-
40.0
−3.0dB
-
46.0
Stopband
(Note 11)
SB
56
-
Passband Ripple
PR
-
Stopband Attenuation
SA
68
-
Group Delay Distortion
∆GD
-
0
Group Delay
(Note 12)
GD
-
18
ADC Digital Filter (HPF):
Frequency Response (Note 11)
−3dB
FR
-
2.0
−0.1dB
-
13.0
DAC Digital Filter (LPF):
Passband
(Note 11)
±0.06dB
PB
0
-
−6.0dB
-
48.0
Stopband
(Note 11)
SB
52.4
-
Passband Ripple
PR
-
-
Stopband Attenuation
SA
54
-
Group Delay Distortion
∆GD
-
0
Group Delay
(Note 12)
GD
-
21
DAC Digital Filter + Analog Filter:
Frequency Response (Note 13) 40kHz
FR
-
-0.3
FILTER CHARACTERISTICS (fs=192kHz)
(Ta= -40
∼
+85°C; VA, VD=2.7∼ 3.6V; DEM=OFF)
Parameter
Symbol
min
typ
ADC Digital Filter (Decimation LPF):
Passband
(Note 11)
±0.1dB
PB
0
-
−0.2dB
-
57.0
−3.0dB
-
90.3
Stopband
(Note 11)
SB
112
-
Passband Ripple
PR
-
-
Stopband Attenuation
SA
70
-
Group Delay Distortion
∆GD
-
0
Group Delay
(Note 12)
GD
-
18
ADC Digital Filter (HPF):
Frequency Response (Note 11)
−3dB
FR
-
4.0
−0.1dB
-
26.0
DAC Digital Filter (LPF):
Passband
(Note 11)
±0.5dB
PB
0
-
−6.0dB
-
96.0
Stopband
(Note 11)
SB
104.9
-
Passband Ripple
PR
-
-
Stopband Attenuation
SA
54
-
Group Delay Distortion
∆GD
-
0
Group Delay
(Note 12)
GD
-
21
DAC Digital Filter + Analog Filter:
Frequency Response (Note 13) 40kHz
FR
-
-0.3
max
37.8
-
-
-
±0.04
-
-
-
-
-
43.6
-
-
±0.02
-
-
-
-
Units
kHz
kHz
kHz
kHz
dB
dB
µs
1/fs
Hz
Hz
kHz
kHz
kHz
dB
dB
µs
1/fs
dB
max
56.6
-
-
-
±0.02
-
-
-
-
-
87.0
-
-
±0.02
-
-
-
-
Units
kHz
kHz
kHz
kHz
dB
dB
µs
1/fs
Hz
Hz
kHz
kHz
kHz
dB
dB
µs
1/fs
dB
MS0559-E-00
-9-
2006/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
