參數資料
型號: AK4562VN
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: LOW POWER 20BIT CODEC WITH PGA
中文描述: 低功耗20位編解碼器美巡賽
文件頁數: 8/29頁
文件大?。?/td> 167K
代理商: AK4562VN
ASAHI KASEI
[AK4562]
MS0031-E-00
2000/05
- 8 -
FILTER CHARACTERISTICS
(Ta=-20
70
°
C; VA, VD=2.2
3.0V, VT=1.8
3.0; fs=44.1kHz; De-emphasis = OFF)
Parameter
ADC Digital Filter (Decimation LPF):
Passband (Note 12)
±
0.1dB
-1.0dB
-3.0dB
Stopband (Note 12)
Passband Ripple
Stopband Attenuation
Group Delay (Note 13)
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 12)
-3dB
-0.5dB
-0.1dB
DAC Digital Filter:
Passband (Note 12)
±
0.1dB
-6.0dB
Stopband (Note 12)
Passband Ripple
Stopband Attenuation
Group Delay (Note 13)
Group Delay Distortion
DAC Digital Filter + Analog Filter
Frequency Response 0
20.0kHz
Symbol
min
typ
max
Units
PB
0
20.0
21.1
17.4
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
SB
PR
SA
GD
GD
27.0
±
0.1
65
17.0
0
FR
3.4
10
22
Hz
Hz
Hz
PB
0
22.05
20.0
kHz
kHz
kHz
dB
dB
1/fs
us
SB
PR
SA
GD
GD
24.1
±
0.06
43
14.7
0
FR
±
0.5
dB
Note : 12. The passband and stopband frequencies scale with fs (sampling frequency).
For examples, PB=0.454 x fs(@ADC: -1.0dB), PB=0.454 x fs(@DAC: -0.1dB).
Note : 13. The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to
setting the 20bit data of both channels to the output register for ADC and include group delay of HPF. For
DAC, this time is from setting the data of both channels on input register to the output of analog signal.
DC CHARACTERISTICS
(Ta=-20
70
°
C; VA, VD=2.2
3.0V, VT=1.8
3.0V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage (Iout=-400uA)
Low-Level Output Voltage (Iout=400uA)
Input Leakage Current
Symbol
VIH
VIL
VOH
VOL
Iin
min
75
%
VT
-
VT-0.4
-
-
Typ
-
-
-
max
-
25
%
VT
-
0.4
±
10
Units
V
V
V
V
uA
-
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