[AK4421]
FILTER CHARACTERISTICS
(Ta = 25°C; VDD=CVDD = +3.0
∼
+3.6V; fs = 44.1 kHz)
Parameter
Symbol
min
typ
max
Units
Digital filter
PB
0
20.0
kHz
Passband
±0.05dB
-
22.05
-
kHz
–6.0dB
Stopband (Note
SB
24.1
kHz
Passband Ripple
PR
dB
±
0.02
Stopband Attenuation
SA
54
dB
Group Delay (Note
GD
-
19.3
-
1/fs
Digital Filter + LPF
Frequency Response 20.0kHz fs=44.1kHz
FR
-
-
dB
±
0.05
40.0kHz fs=96kHz
FR
-
-
dB
±
0.05
80.0kHz fs=192kHz
FR
-
-
dB
±
0.05
Note 12. The passband and stopband frequencies scale with fs (system sampling rate).
For example, PB=0.4535×fs (@±0.05dB), SB=0.546×fs.
Note 13. Calculated delay time caused by the digital filter. This time is measured from setting the 16/24bit data
of both channels to input register to the output of the analog signal.
DC CHARACTERISTICS
(Ta = 25°C; VDD=CVDD = +3.0
∼
+3.6V)
Parameter
Symbol
min
typ
max
High-Level Input Voltage
VIH
70%VDD
-
-
Low-Level Input Voltage
VIL
-
-
30%VDD
High-Level Output Voltage (Iout = -80uA)
VOH
VDD-0.4
-
-
Low-Level Output Voltage (Iout = 80uA)
VOL
-
-
0.4
Input Leakage Current (Note
Iin
-
-
±
10
Note 14. The SMUTE pin is not included. The SMUTE pin has internal pull-down resistor (typ.100kΩ).
Units
V
V
V
V
μA
MS0945-E-01
-6-
2008/08
AKM [ ASAHI KASEI MICROSYSTEMS ]
