參數(shù)資料
型號： AK4382VT
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 112dB 192kHz 24-BIT SCH DAC
中文描述： 一一二分貝192kHz的24位三星援
文件頁數(shù)： 5/21頁
文件大?。?/td> 251K
代理商： AK4382VT
ASAHI KASEI
[AK4382]
MS0034-E-00
2000/7
- 5 -
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25
°
C; VDD = 4.75
~
5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Digital filter
Passband
±
0.05dB (Note 9)
-6.0dB
Stopband (Note 9)
Passband Ripple
Stopband Attenuation
Group Delay (Note 10)
Digital Filter + LPF
Frequency Response
20.0kHz
40.0kHz
80.0kHz
fs=192kHz
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.
Symbol
min
typ
max
Units
PB
0
-
22.05
20.0
-
KHz
KHz
KHz
DB
DB
1/fs
SB
PR
SA
GD
24.25
±
0.02
54
-
19.3
-
fs=44.1kHz
fs=96kHz
FR
FR
FR
-
-
-
0.2
±
0.3
+0/-0.6
-
-
-
Db
dB
dB
SLOW ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25
°
C; AVDD, DVDD = 4.75~5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Digital Filter
Passband
±
0.04dB (Note 11)
-3.0dB
Stopband (Note 11)
Passband Ripple
Stopband Attenuation
Group Delay (Note 10)
Digital Filter + SCF
Frequency Response
Symbol
min
typ
max
Units
PB
0
-
18.2
8.1
-
kHz
kHz
kHz
dB
dB
1/fs
SB
PR
SA
GD
39.2
±
0.005
72
-
19.3
-
20.0kHz
40.0kHz
80.0kHz
fs=44.kHz
fs=96kHz
fs=192kHz
FR
FR
FR
-
-
-
+0/-5
+0/-4
+0/-5
-
-
-
dB
dB
dB
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
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout=-80μA)
Low-Level Output Voltage (Iout=80μA)
Input Leakage Current
Symbol
VIH
VIL
VOH
VOL
Iin
min
2.2
-
typ
-
-
-
max
-
0.8
-
0.4
±
10
Units
V
V
V
V
μA
VDD-0.4
-
-
-
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