ASAHI KASEI
[AK4384]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; VDD = 4.5
∼
5.5V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Symbol
min
typ
max
Units
Digital filter
PB
0
20.0
kHz
Passband
±0.05dB
(Note 9)
-
22.05
-
kHz
-6.0dB
Stopband
(Note 9)
SB
24.1
kHz
Passband Ripple
PR
dB
±
0.02
Stopband Attenuation
SA
54
dB
Group Delay
(Note 10)
GD
-
19.3
-
1/fs
Digital Filter + LPF
-
dB
Frequency Response 20.0kHz fs=44.1kHz
FR
-
±
0.03
-
dB
40.0kHz fs=96kHz
FR
-
±
0.03
-
dB
80.0kHz fs=192kHz
FR
-
±
0.03
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; VDD = 4.5 ~ 5.5V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Digital Filter
Passband
±0.04dB
-3.0dB
(Note 11)
(Note 11)
PB
SB
PR
SA
GD
0
-
39.2
72
-
-
-
-
18.2
8.1
-
±
0.005
19.3
+0.02/-5
+0.02/-4
+0.02/-5
-
-
-
-
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Symbol
min
typ
max
Units
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + LPF
Frequency Response
(Note 10)
FR
20.0kHz fs=44.kHz
40.0kHz fs=96kHz
FR
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=4.5
∼
5.5V)
Parameter
Symbol
min
High-Level Input Voltage
VIH
2.2
Low-Level Input Voltage
VIL
-
High-Level Output Voltage (Iout=-80µA)
VOH
VDD-0.4
Low-Level Output Voltage
(Iout=80µA)
VOL
-
Input Leakage Current
(Note 12)
Iin
-
Note: 12. P/S pin has internal pull-up device, normally 100kΩ.
typ
-
-
-
-
max
-
0.8
-
0.4
±
10
Units
V
V
V
V
µA
MS0176-E-01
-5-
2006/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
