[AK4612]
フィルタ特性(fs=48kHz)
(Ta= Tmin ∼ Tmax; AVDD1=AVDD2=3.0∼ 3.6V, DVDD=1.6∼ 2.0V, TVDD1=TVDD2=1.6∼ 3.6V; DEM=OFF)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 13)
±0.1dB
−0.2dB
−3.0dB
PB
0
-
-
28
-
-
20.0
23.0
-
18.9
-
-
-
kHz
kHz
kHz
kHz
dB
Stopband
Passband Ripple
(Note 13)
SB
PR
-
±0.1
Stopband Attenuation
Group Delay Distortion
Group Delay
SA
ΔGD
GD
68
-
-
-
0
16
-
-
-
dB
μs
1/fs
(Note 14)
ADC Digital Filter (HPF):
Frequency Response (Note 13) −3dB
−0.1dB
FR
-
-
1.0
6.5
-
-
Hz
Hz
DAC Digital Filter (LPF):
Passband
(Note 13) ±0.06dB
PB
0
-
26.2
-
54
-
-
21.8
-
-
kHz
kHz
kHz
dB
dB
μs
−6.0dB
(Note 13)
24.0
-
-
-
0
Stopband
SB
PR
SA
ΔGD
GD
Passband Ripple
Stopband Attenuation
Group Delay Distortion
Group Delay
±0.06
-
-
-
(Note 14)
-
22
1/fs
DAC Digital Filter + Analog Filter:
Frequency Response (Note 15) 20kHz
FR
-
-0.1
-
dB
フィルタ特性(fs=96kHz)
(Ta= Tmin ∼ Tmax; AVDD1=AVDD2=3.0∼ 3.6V, DVDD=1.6∼ 2.0V, TVDD1=TVDD2=1.6∼ 3.6V; DEM=OFF)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 13) ±0.1dB
−0.2dB
PB
0
-
-
56
-
68
-
-
40.0
46.0
-
-
-
37.8
-
-
-
kHz
kHz
kHz
kHz
dB
dB
μs
−3.0dB
(Note 13)
Stopband
Passband Ripple
Stopband Attenuation
Group Delay Distortion
Group Delay
SB
PR
SA
ΔGD
GD
±0.1
-
-
-
0
16
(Note 14)
-
1/fs
ADC Digital Filter (HPF):
Frequency Response (Note 13) −3dB
−0.1dB
FR
-
-
2.0
13.0
-
-
Hz
Hz
DAC Digital Filter (LPF):
Passband
(Note 13) ±0.06dB
PB
0
-
52.4
-
54
-
-
-
43.6
-
kHz
kHz
kHz
dB
dB
μs
−6.0dB
(Note 13)
48.0
Stopband
SB
PR
SA
ΔGD
GD
-
-
-
0
22
-
±0.06
-
-
-
Passband Ripple
Stopband Attenuation
Group Delay Distortion
Group Delay
(Note 14)
1/fs
DAC Digital Filter + Analog Filter:
Frequency Response (Note 15) 40kHz
FR
-
-0.3
-
dB
MS1039-J-01
2009/06
- 12 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
