ASAHI KASEI
[AK5365
]
FILTER CHARACTERISTICS (fs=48kHz)
(Ta=−40
∼
85°C; AVDD=4.75
∼
5.25V; DVDD=3.0
∼
5.25V; fs=48kHz)
Parameter
Symbol
min
ADC Digital Filter (Decimation LPF):
PB
0
Passband
(Note 12)
−0.005dB
-
−0.02dB
-
−0.06dB
-
−6.0dB
Stopband
SB
26.5
Passband Ripple
PR
Stopband Attenuation
SA
80
Group Delay
(Note 13)
GD
Group Delay Distortion
∆GD
ADC Digital Filter (HPF):
Frequency Response (Note 12)
−3dB
FR
−0.5dB
−0.1dB
typ
max
21.5
-
-
-
±0.005
29.6
0
1.0
2.9
6.5
Units
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
µs
Hz
Hz
Hz
21.768
22.0
24.0
Note 12. The passband and stopband frequencies scale with fs. For example, 21.768kHz at
−0.02dB
is 0.454 x fs.
Note 13. The calculated delay time induced by digital filtering. This time is from the input of an analog signal
to the setting of 24bit data both channels to the ADC output register for ADC.
FILTER CHARACTERISTICS (fs=96kHz)
(Ta=−40
∼
85°C; AVDD=4.75
∼
5.25V; DVDD=3.0
∼
5.25V; fs=96kHz)
Parameter
Symbol
min
ADC Digital Filter (Decimation LPF):
PB
0
Passband
(Note 14)
−0.005dB
-
−0.02dB
-
−0.06dB
-
−6.0dB
Stopband
SB
53.0
Passband Ripple
PR
Stopband Attenuation
SA
80
Group Delay
(Note 15)
GD
Group Delay Distortion
∆GD
ADC Digital Filter (HPF):
Frequency Response (Note 14)
−3dB
FR
−0.5dB
−0.1dB
typ
max
43.0
-
-
-
±0.005
29.6
0
2
5.8
13
Units
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
µs
Hz
Hz
Hz
43.536
44.0
48.0
Note 14. The passband and stopband frequencies scale with fs. For example, 43.536kHz at
−0.02dB
is 0.454 x fs.
Note 15. The calculated delay time induced by digital filtering. This time is from the input of an analog signal
to the setting of 24bit data both channels to the ADC output register for ADC.
MS0164-E-01
-8-
2002/08
AKM [ ASAHI KASEI MICROSYSTEMS ]
