參數(shù)資料
型號: AK4665AEN
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 20-Bit Stereo CODEC with MIC/HP-AMP
中文描述: 20位立體聲編解碼器麥克風(fēng)/惠普腺苷
文件頁數(shù): 8/52頁
文件大小: 541K
代理商: AK4665AEN
ASAHI KASEI
[AK4665A]
MS0440-E-01
2006/05
- 8 -
FILTER CHARACTERISTICS
(Ta=25
°
C; AVDD, DVDD, HVDD=2.6
3.6V; TVDD=1.6
3.6V; fs=44.1kHz; DEM=OFF; BOOST=OFF)
Parameter
Symbol
ADC Digital Filter (LPF):
Passband (Note 13)
±
0.16dB
PB
0.66dB
1.1dB
6.9dB
Stopband (Note 13)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 14)
GD
Group Delay Distortion
GD
ADC Digital Filter (HPF):
Frequency Response (Note 13)
3dB
FR
0.5dB
0.1dB
DAC Digital Filter:
(Note 15)
Passband (Note 13)
±
0.1dB
PB
0.7dB
6.0dB
Stopband (Note 13)
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (Note 14)
GD
Group Delay Distortion
GD
DAC Digital Filter + Analog Filter:
(Note 15)
Frequency Response: 0
20.0kHz
FR
Analog Filter:
(Note 16)
Frequency Response: 0
20.0kHz
FR
BOOST Filter:
(Note 17)
Frequency Response
20Hz
FR
MIN
100Hz
1kHz
20Hz
FR
MID
100Hz
1kHz
20Hz
FR
MAX
100Hz
1kHz
Note 13. The passband and stopband frequencies scale with fs.
For example (DAC), PB=0.44*fs(@
±
0.1dB), SB=0.57*fs(@
59dB).
Note 14. This is the calculated delay time caused by digital filtering. This time is measured from the input of analog signal
to setting the 20 bit data of both channels on input register to the output register of ADC. For DAC, this time is
from setting the 20 bit data of both channels on input register to the output of analog signal.
Note 15. BOOST OFF (BST1-0 bits = “00”)
Note 16. LIN
HPL, RIN
HPR, MIN
HPL/HPR.
Note 17. These frequency responses scale with fs. If high-level signal is input, the AK4665A clips at low frequency.
min
typ
max
Units
0
-
-
-
-
17.3
-
-
-
-
±
0.1
-
-
-
kHz
kHz
kHz
kHz
kHz
dB
dB
1/fs
μ
s
19.4
19.9
22.1
-
-
-
17
0
26.1
-
73
-
-
-
-
-
3.4
10
22
-
-
-
Hz
Hz
Hz
0
-
-
-
19.6
-
-
-
±
0.01
-
-
-
kHz
kHz
kHz
kHz
dB
dB
1/fs
μ
s
20.0
22.05
-
-
-
17.5
0
25.2
-
59
-
-
-
±
1.0
-
dB
-
±
1.0
-
dB
-
-
-
-
-
-
-
-
-
5.76
2.92
0.02
10.80
6.84
0.13
16.06
10.54
0.37
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
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