AKD4357 데이터 시트보기 (PDF) - Asahi Kasei Microdevices
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AKD4357 Datasheet PDF : 27 Pages
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ASAHI KASEI
[AK4357]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 4.75 ∼ 5.25V; fs = 44.1kHz; DEM = OFF; SLOW=”0”; PCM Mode)
Parameter
Symbol
min
typ
max
Units
Digital filter
Passband
±0.05dB (Note 9)
PB
0
20.0
kHz
-6.0dB
-
22.05
-
kHz
Stopband
Passband Ripple
(Note 10)
SB
24.1
PR
kHz
± 0.02
dB
Stopband Attenuation
SA
54
dB
Group Delay
(Note 11)
GD
-
19.1
-
1/fs
Digital Filter + SCF
Frequency Response 20.0kHz Fs=44.1kHz
FR
-
± 0.2
40.0kHz Fs=96kHz
FR
-
± 0.3
-
dB
-
dB
80.0kHz Fs=192kHz
FR
-
+0/ -0.6
-
dB
Notes : 10. The passband and stopband frequencies scale with fs(system sampling rate).
For example, PB=0.4535×fs (@±0.05dB), SB=0.546×fs.
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 = 4.75~5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “1”; PCM Mode)
Parameter
Symbol
min
Typ
Digital Filter
Passband
Stopband
±0.04dB (Note 12)
-3.0dB
(Note 12)
PB
0
-
18.2
SB
39.2
Passband Ripple
PR
Stopband Attenuation
SA
72
Group Delay
(Note 11)
GD
-
19.1
Digital Filter + SCF
Frequency Response 20.0kHz fs=44.kHz
FR
-
40.0kHz fs=96kHz
FR
-
80.0kHz fs=192kHz
FR
-
Note: 12. The passband and stopband frequencies scale with fs.
For example, PB = 0.185×fs (@±0.04dB), SB = 0.888×fs.
+0/ -5
+0/ -4
+0/ -5
max
8.1
-
± 0.005
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
DC CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 4.75 ∼ 5.25V)
Parameter
Symbol
min
Typ
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
(Note 13)
Iin
-
-
Note: 13. DSDM pin has internal pull-down devices, nominally 100kΩ .
max
Units
-
V
0.8
V
-
V
0.4
V
± 10
µA
MS0088-E-02
- 6-
2002/07
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