ASAHI KASEI
[AK4532]
FILTER CHARACTERISTICS
(Ta=25
℃;
VA, VD = 5.0V±10%; fs = 44.1 kHz)
Parameter
Symbol
A/D Digital Filter
(Decimation LPF)
PB
Passband (Note 1)
+/- 0.1 dB
-0.5 dB
-1.2 dB
-6.7 dB
Stopband
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay Distortion
Delta GD
Group Delay (Note 2)
GD
A/D Digital Filter (HPF)
Frequency Response
-3 dB
FR
(Note 1)
-0.5 dB
-0.1 dB
D/A Digital Filter
Passband (Note 1)
+/- 0.1 dB
PB
-6.0 dB
Stopband
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 2)
GD
D/A Digital Filter
+ Analog Filter
Frequency Response
0 to 20 kHz
FR
min
typ
max
Units
0
0
0
0
26.0
68
16.5
19.0
20.0
22.05
+/- 0.1
0
16.1
6.85
19.6
44.9
kHz
kHz
kHz
kHz
kHz
dB
dB
uS
1/fs
Hz
Hz
Hz
0
0
26.1
65
14.4
18.0
22.05
+/- 0.1
kHz
kHz
kHz
dB
dB
1/fs
+/- 1.0
dB
Note: 1. The passband and stopband frequencies scale with fs.
2. The calculating delay time which occurred by digital filtering. This time is from the input of
analog signal to setting the 16bit data of both channels to the output register of ADC.
For DAC, this time is from setting 16bit data of both channels on input register to the output of
analog signal.
DIGITAL CHARACTERISTICS
(Ta=25
℃;
VA, VD = 5.0V±10%)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout=-80uA)
Low-Level Output Voltage (Iout=80uA)
Input Leakage Current
Symbol
VIH
VIL
VOH
VOL
Iin
min
2.2
-
VD-0.4
-
-
typ
-
-
-
-
-
max
-
0.8
-
0.4
+/-10
Units
V
V
V
V
uA
0178-E-01
6
1999/06
AKM [ ASAHI KASEI MICROSYSTEMS ]
