參數(shù)資料
型號: AK4565VF
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: LOW POWER 20BIT CODEC WITH BUILT IN ALC
中文描述: 低功耗20位編解碼器中的ALC的建造
文件頁數(shù): 7/33頁
文件大小: 249K
代理商: AK4565VF
ASAHI KASEI
[AK4565]
MS0132-E-01
2003/05
- 7 -
FILTER CHARCTERISTICS
(Ta=25
°
C; VA, VD=2.3
3.6V; VT=1.5
3.6V; fs=48kHz; De-emphasis = OFF)
Parameter
ADC Digital Filter (Decimation LPF)
:
Passband (Note 12)
-3.0dB
Stopband (Note 12)
Passband Ripple
Stopband Attenuation
Group Delay (Note 13)
Group Delay Distortion
ADC Digital Filter (HPF)
:
Frequency Response (Note 12)
-0.15dB
DAC Digital Filter
:
Passband (Note 12)
-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
Note 12. The passband and stopband frequencies scale with fs.
For example, ADC: PB=0.454 x fs(@-1.0dB), DAC: PB=0.454 x fs(@-0.1dB).
Note 13. The calculated delay time caused by digital filtering. This time is from the input of an analog signal to setting the
20bit data of both channels to the output register of the ADC and includes the group delay of the HPF.
For DAC, this time is from setting the 20bit data of both channels on input register to the output of analog signal.
Symbol
min
typ
max
Units
±
0.1dB
-1.0dB
PB
SB
PR
SA
GD
GD
0
-
-
21.8
23.0
17.0
0
18.9
-
-
±
0.1
-
kHz
kHz
kHz
kHz
dB
dB
1/fs
μ
s
29.4
65
-
-3.0dB
-0.56dB
FR
-
-
-
3.7
10
20
-
-
-
Hz
Hz
Hz
±
0.1dB
PB
SB
PR
SA
GD
GD
0
-
24.0
14.8
0
21.7
-
±
0.06
-
kHz
kHz
kHz
dB
dB
1/fs
μ
s
26.2
43
-
FR
±
0.5
dB
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