參數(shù)資料
型號: AK4528
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: HIGH PERFORMANCE 24BIT 96KHZ AUDIO CODEC
中文描述: 高性能24位96kHz的音頻編解碼器
文件頁數(shù): 7/29頁
文件大?。?/td> 284K
代理商: AK4528
ASAHI KASEI
[AK4528]
MS0011-E-00
2000/1
- 7 -
Parameter
Power Supplies
Power Supply Current
Normal Operation (PDN=“H”)
VA
VD+VT (fs=44.1kHz)
(fs=96kHz)
Power-down mode (PDN=“L”) (Note 7)
VA
VD+VT
min
typ
max
Units
38
10
18
10
10
57
20
36
100
100
mA
mA
mA
m
A
m
A
Note: 7. All digital input pins are held VD or DGND.
FILTER CHARACTERISTICS
(Ta=25
°
C; VA, VD=4.75
~
5.25V; VT=2.7
~
5.25V; fs=44.1kHz; DEM=OFF)
Parameter
ADC Digital Filter (Decimation LPF):
Passband (Note 8)
-0.005dB
-0.02dB
-0.06dB
-6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 9)
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 8)
-3dB
-0.5dB
-0.1dB
DAC Digital Filter:
Passband (Note 8)
-0.01dB
-6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 9)
DAC Digital Filter + SCF:
Frequency Response:
0
~
20.0kHz
~
40kHz (Note 10)
Symbol
min
typ
max
Units
PB
0
-
-
-
20.02
22.20
22.05
19.76
-
-
-
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
SB
PR
SA
GD
D
GD
24.34
±
0.005
80
31
0
FR
0.9
2.7
6.0
Hz
Hz
Hz
PB
0
-
22.05
20.0
-
kHz
kHz
kHz
dB
dB
1/fs
SB
PR
SA
GD
24.1
±
0.005
75
30
FR
±
0.2
±
0.3
dB
dB
Note: 8. The passband and stopband frequencies scale with fs.
For example, 20.02kHz at -0.02dB is 0.454 x fs. The reference frequency of these responses is 1kHz.
9. 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 for ADC.
For DAC, this time is from setting the 24bit data of both channels on input register to the output of analog signal.
10. fs=96kHz.
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