參數(shù)資料
型號(hào): AK4560AVQ
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16bit CODEC with ALC and MIC/HP/SPK-Amps
中文描述: 16位編解碼器ALC和麥克風(fēng)/惠普/胰腎聯(lián)合移植,放大器
文件頁(yè)數(shù): 11/47頁(yè)
文件大小: 339K
代理商: AK4560AVQ
ASAHI KASEI
[AK4560A]
MS0028-E-00
2000/05
- 11 -
FILTER CHARACTERISTICS
(Ta=25
°
C; VA=VD=2.6
3.3V; fs=48kHz; De-emphasis = OFF)
Parameter
ADC Digital Filter (LPF):
Passband (Note 31)
Symbol
min
typ
max
Units
±
0.1dB
-1.0dB
-3.0dB
PB
0
-
-
21.8
23.0
18.9
-
-
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
Stopband (Note 31)
Passband Ripple
Stopband Attenuation
Group Delay (Note 32)
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 31)
SB
PR
SA
GD
GD
29.4
±
0.1
65
-
17.0
0
-
-3.0dB
-0.56dB
-0.15dB
FR
-
-
-
3.7
10
20
-
-
-
Hz
Hz
Hz
DAC Digital Filter:
Passband (Note 31)
±
0.1dB
-6.0dB
PB
0
-
24.0
21.7
-
kHz
kHz
kHz
dB
dB
1/fs
Stopband (Note 31)
Passband Ripple
Stopband Attenuation
Group Delay (Note 32)
DAC Digital Filter + Analog Filter:
Frequency Response 0
20.0kHz
Note 31. 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 32. The calculating delay time which occured by digital filtering, This time is from the input of analog signal to
setting the 16 bit data of both channels on input register to the output register of ADC. And this time include
group delay of HPF. For DAC, this time is from setting the 16 bit data of both channels on input register to the
output of analog signal.
SB
PR
SA
GD
26.2
±
0.06
43
-
14.8
-
FR
±
0.5
dB
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