
ASAHI KASEI
[AK4385]
MS0246-E-00
2003/07
- 5 -
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25
°
C; VDD = 4.75
~
5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Digital filter
Passband
±
0.05dB (Note 9)
-6.0dB
Stopband (Note 9)
Passband Ripple
Stopband Attenuation
Group Delay (Note 10)
Digital Filter + SCF
Frequency Response
80.0kHz
fs=192kHz
Notes: 9. The passband and stopband frequencies scale with fs(system sampling rate).
For example, PB=0.4535×fs (@
±
0.05dB), SB=0.546×fs.
10. The calculating delay time which occurred by digital filtering. This time is from setting the 16/24bit data
of both channels to input register to the output of analog signal.
SLOW ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25
°
C; AVDD, DVDD = 4.75~5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Symbol
Digital Filter
Passband
±
0.04dB (Note 11)
-3.0dB
Stopband (Note 11)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 10)
GD
Digital Filter + SCF
Frequency Response
80.0kHz
fs=192kHz
FR
Note: 11. The passband and stopband frequencies scale with fs.
For example, PB = 0.185×fs (@
±
0.04dB), SB = 0.888×fs.
DC CHARACTERISTICS
(Ta=25
°
C; VDD=4.75
~
5.25V)
Parameter
Symbol
High-Level Input Voltage
Low-Level Input Voltage
VIL
High-Level Output Voltage (Iout=-80μA)
Low-Level Output Voltage (Iout=80μA)
VOL
Input Leakage Current
Iin
Symbol
min
typ
max
Units
PB
0
-
22.05
19.3
20.0
-
±
0.02
-
kHz
kHz
kHz
dB
dB
1/fs
SB
PR
SA
GD
24.1
54
-
20.0kHz
40.0kHz
fs=44.1kHz
fs=96kHz
FR
FR
FR
-
-
-
±
0.2
±
0.3
+0.1/-0.6
-
-
-
dB
dB
dB
min
typ
max
Units
PB
0
-
18.2
19.3
8.1
-
kHz
kHz
kHz
dB
dB
1/fs
39.2
72
-
±
0.005
-
20.0kHz
40.0kHz
fs=44.kHz
fs=96kHz
FR
FR
-
-
-
+0/-5
+0/-4
+0.1/-5
-
-
-
dB
dB
dB
min
2.2
-
typ
-
-
-
max
-
0.8
-
0.4
±
10
Units
V
V
V
V
μA
VIH
VOH
VDD-0.4
-
-
-