[AK4359A]
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
max
Units
Digital filter
PB
0
20.0
kHz
Passband
±0.05dB
-
22.05
-
kHz
-6.0dB
Stopband
SB
24.1
kHz
Passband Ripple
PR
dB
±
0.02
Stopband Attenuation
SA
54
dB
Group Delay
GD
-
19.3
-
1/fs
Digital Filter + SCF
Frequency Response 20.0kHz Fs=44.1kHz
FR
-
+ 0.06/-0.10
-
dB
40.0kHz Fs=96kHz
FR
-
+ 0.06/-0.13
-
dB
80.0kHz Fs=192kHz
FR
-
+ 0.06/-0.51
-
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
PB
SB
PR
SA
GD
0
-
39.2
72
-
18.2
8.1
-
±
0.005
19.3
-
kHz
kHz
kHz
dB
dB
1/fs
Symbol
min
typ
max
Units
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
Digital Filter + SCF
Frequency Response
20.0kHz
40.0kHz
80.0kHz
fs=44.kHz
fs=96kHz
fs=192kHz
FR
-
+0.1/-4.3
-
dB
FR
-
+0.1/-3.3
-
dB
FR
-
+0.1/-3.7
-
dB
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
Symbol
min
High-Level Input Voltage
VIH
2.2
Low-Level Input Voltage
VIL
-
High-Level Output Voltage (Iout = -80µA)
VOH
DVDD-0.4
Low-Level Output Voltage
(Iout = 80µA)
VOL
-
Input Leakage Current
Iin
-
Note 13. The P/S pin has an internal pull-up resistor. (typ. 100kΩ)
typ
-
-
-
-
max
-
0.8
-
0.4
±
10
Units
V
V
V
V
μA
MS1010-E-01
-7-
2008/10
AKM [ ASAHI KASEI MICROSYSTEMS ]
