參數(shù)資料
型號(hào): AK4524
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 24BIT 96KHZ AUDIO CODEC
中文描述: 24位96kHz的音頻編解碼器
文件頁數(shù): 7/31頁
文件大?。?/td> 320K
代理商: AK4524
ASAHI KASEI
[AK4524]
M0050-E-01
1999/5
- 7 -
Parameter
Power Supplies
Power Supply Current
Normal Operation ( PD = “H”)
VA
VD+VT (fs=44.1kHz)
(fs=96kHz)
Power-down mode ( PD = “L”) (Note 6)
VA
VD+VT
min
typ
max
Units
30
16
24
10
10
45
24
36
100
100
mA
mA
mA
uA
uA
Note: 6. XTALE=”L” and 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 7)
-0.005dB
-0.02dB
-0.06dB
-6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 8)
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 5)
-3dB
-0.5dB
-0.1dB
DAC Digital Filter:
Passband (Note 7)
-0.01dB
-6.0dB
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 8)
DAC Digital Filter + SCF:
Frequency Response:
0
~
20.0kHz
~
40kHz (Note 9)
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: 7. 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.
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 for ADC.
For DAC, this time is from setting the 24bit data of both channels on input register to the output of analog
signal.
9. fs=96kHz.
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