[AK4359A]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD=DVDD = 4.5 ∼ 5.5V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Digital filter
Passband
Symbol
min
typ
max
Units
PB
0
-
24.1
20.0
-
kHz
kHz
kHz
dB
dB
1/fs
±0.05dB (Note 10)
-6.0dB
22.05
Stopband
Passband Ripple
Stopband Attenuation
Group Delay
(Note 10)
SB
PR
SA
GD
± 0.02
54
-
(Note 11)
19.3
-
Digital Filter + SCF
Frequency Response 20.0kHz Fs=44.1kHz
40.0kHz Fs=96kHz
FR
FR
FR
-
-
-
+ 0.06/-0.10
+ 0.06/-0.13
+ 0.06/-0.51
-
-
-
dB
dB
dB
80.0kHz Fs=192kHz
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
Symbol
min
typ
max
Units
Passband
±0.04dB
-3.0dB
(Note 12)
(Note 12)
PB
0
-
8.1
-
kHz
kHz
kHz
dB
18.2
Stopband
SB
PR
SA
GD
39.2
Passband Ripple
± 0.005
Stopband Attenuation
Group Delay
72
-
dB
(Note 11)
19.3
-
1/fs
Digital Filter + SCF
Frequency Response
FR
FR
FR
-
-
-
+0.1/-4.3
+0.1/-3.3
+0.1/-3.7
-
-
-
dB
dB
dB
fs=44.kHz
fs=96kHz
fs=192kHz
20.0kHz
40.0kHz
80.0kHz
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
VIH
VIL
VOH
VOL
Iin
min
2.2
-
typ
max
-
0.8
-
0.4
± 10
Units
V
V
V
V
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout = -80µA)
Low-Level Output Voltage
Input Leakage Current
-
-
-
DVDD-0.4
(Iout = 80µA)
(Note 13)
-
-
-
μA
Note 13. The P/S pin has an internal pull-up resistor. (typ. 100kΩ)
MS1010-E-01
2008/10
- 7 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
