[AK4613]
FILTER CHARACTERISTICS (fs=192kHz)
(Ta= -40 ∼ +105°C; 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
-
-
112
-
70
-
-
57.0
90.3
-
-
-
56.6
-
-
-
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
-
-
4.0
26.0
-
-
Hz
Hz
DAC Digital Filter (LPF):
Passband
(Note 13) ±0.06dB
PB
0
-
-
87.0
-
-
kHz
kHz
kHz
dB
dB
μs
−6.0dB
(Note 13)
96.0
-
-
-
0
Stopband
SB
PR
SA
ΔGD
GD
104.9
Passband Ripple
Stopband Attenuation
Group Delay Distortion
Group Delay
-
54
-
±0.06
-
-
-
(Note 14)
-
22
1/fs
DAC Digital Filter + Analog Filter:
Frequency Response (Note 15) 80kHz
FR
-
-1
-
dB
Note 13. The passband and stopband frequencies scale with fs (sampling frequency). For example, ADC: Passband
(±0.1dB) = 0.39375 x fs (@ fs=48kHz), DAC: Passband (±0.06dB) = 0.45412 x fs.
Note 14. The calculated delay time is resulting from digital filtering. For the ADC, this time is from the input of an analog
signal to the setting of 24bit data for both channels to the ADC output register. For the DAC, this time is from
setting the 24 bit data both channels at the input register to the output of an analog signal.
Note 15. The reference frequency is 1kHz.
MS1052-E-02
2010/03
- 13 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
