ASAHI KASEI
[AK4359]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 4.5
∼
5.5V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Symbol
Min
Typ
Digital filter
PB
0
Passband
±0.05dB
(Note 10)
-
22.05
-6.0dB
Stopband
(Note 10)
SB
24.1
Passband Ripple
PR
Stopband Attenuation
SA
54
Group Delay
(Note 11)
GD
-
19.3
Digital Filter + SCF
Frequency Response 20.0kHz Fs=44.1kHz
FR
-
+ 0.06/-0.10
40.0kHz Fs=96kHz
FR
-
+ 0.06/-0.13
80.0kHz Fs=192kHz
FR
-
+ 0.06/-0.51
Max
20.0
-
±
0.02
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Note 10. The passband and stopband frequencies scale with fs(system sampling rate). For example, PB=0.4535×fs
(@±0.05dB), SB=0.546×fs.
Note 11. 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 = 4.5~5.5V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Digital Filter
Passband
±0.04dB
-3.0dB
(Note 12)
(Note 12)
PB
SB
PR
SA
GD
FR
FR
FR
0
-
39.2
72
-
-
-
-
18.2
8.1
-
±
0.005
19.3
+0.1/-4.3
+0.1/-3.3
+0.1/-3.7
-
-
-
-
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
Symbol
Min
Typ
Max
Units
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF
Frequency Response
(Note 11)
20.0kHz
40.0kHz
80.0kHz
fs=44.kHz
fs=96kHz
fs=192kHz
Note 12. 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; AVDD, DVDD = 4.5
∼
5.5V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout = -80µA)
Low-Level Output Voltage
(Iout = 80µA)
Input Leakage Current
(Note 13)
Symbol
VIH
VIL
VOH
VOL
Iin
Min
2.2
-
DVDD-0.4
-
-
Typ
-
-
-
-
Max
-
0.8
-
0.4
±
10
Units
V
V
V
V
µA
Note 13. P/S pin has internal pull-up device, nominally 100kΩ.
MS0289-E-02
-7-
2006/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
