參數(shù)資料
型號: AK5392
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Enhanced Dual Bit 24Bit ADC
中文描述: 增強雙位24位模數(shù)轉(zhuǎn)換器
文件頁數(shù): 7/19頁
文件大小: 171K
代理商: AK5392
ASAHI KASEI
[AK5392]
0188-E-01
1997/11
- 7 -
FILTER CHARACTERISTICS
(Ta=25
°
C
; VA=5.0V
±
5%; VD=3.0
5.25V; fs=48kHz)
Parameter
ADC Digital Filter(Decimation LPF):
Passband (Note 6 )
Stopband (Note 6 )
Passband Ripple
Stopband Attenuation (Note 7 )
Group Delay Distortion
Group Delay (Note 8 )
ADC Digital Filter(HPF):
Freqency response (Note 6 )
Symbol
min
typ
max
Units
PB
SB
PR
SA
GD
GD
0
21.768
kHz
kHz
dB
dB
us
1/fs
26.232
±
0.001
110
0
38.7
-3dB
-0.5dB
-0.1dB
FR
1.0
2.9
6.5
Hz
Hz
Hz
Notes: 6 . The passband and stopband frequencies scale with fs. PB=0.4535fs, SB=0.5465fs
7 . The analog modulator samples the input at 6.144MHz for an output word rate of 48kHz.
There is no rejection of input signals which are multiples of the sampling frequency
(that is: there is no rejection for n x 6.144MHz
±
21.768kHz, where n=1,2,3
).
8 . The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to
setting the 24bit data of both channels to the output register. 40.7/fs at HPF:ON.
DIGITAL CHARACTERISTICS
(Ta=25
°
C
; VA=5.0V
±
5%; VD=3.0
5.25V)
Parameter
Symbol
VIH
VIL
VOH
VOL
Iin
min
typ
-
-
-
max
-
30%VD
-
0.1
±
10
Units
V
V
V
V
uA
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage Iout=-20uA
Low-Level Output Voltage Iout=20uA
Input Leakage Current
70%VD
-
VD-0.1
-
-
-
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