參數(shù)資料
型號(hào): AKD4564
廠(chǎng)商: Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi): Codec
英文描述: 16BIT CODEC WITH BUILT-IN ALC AND MIC/HP/SPK-AMP
中文描述: 16位編解碼器,配有ALC和麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁(yè)數(shù): 10/48頁(yè)
文件大?。?/td> 382K
代理商: AKD4564
ASAHI KASEI
[AK4564]
MS0140-E-01
2002/07
- 10 -
FILTER CHARACTERISTICS
(Ta=25
°
C; AVDD, DVDD, SVDD=2.6
3.6V, MVDD, HVDD=2.6
5.5V; fs=48kHz; De-emphasis = OFF,
Digital EQ/HPF/LPF = OFF)
Parameter
Symbol
ADC Digital Filter (LPF):
Passband (Note 28)
-3.0dB
Stopband (Note 28)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 29)
GD
Group Delay Distortion
GD
ADC Digital Filter (HPF):
Frequency Response (Note 28)
-0.15dB
DAC Digital Filter:
Passband (Note 28)
-6.0dB
Stopband (Note 28)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 29)
GD
DAC Digital Filter + Analog Filter:
(Note 30)
Frequency Response 0
20.0kHz
FR
Note 28. The passband and stopband frequencies scale with fs (system sampling rate).
For example, ADC is PB=0.454*fs (@-1.0dB), DAC is PB=0.454*fs (@-0.1dB).
Note 29. The calculated delay time caused by digital filtering. This time is from the input of an analog signal to setting the
16bit 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 16bit data of both channels on input register to the output of analog signal.
Note 30. DAC
à
LOUT1/ROUT1, LOUT2/ROUT2
min
typ
max
Units
±
0.1dB
-1.0dB
PB
0
-
-
21.8
23.0
19.0
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
0
-
24.0
15.8
21.7
-
±
0.06
-
kHz
kHz
kHz
dB
dB
1/fs
26.2
43
-
±
0.5
dB
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