參數(shù)資料
型號(hào)： AK4641
廠商： Asahi Kasei Microsystems Co.,Ltd
元件分類(lèi)： Codec
英文描述： 16 BIT CODEC WITH BLUETOOTH INTERFACE
中文描述： 16位編解碼器與藍(lán)牙接口
文件頁(yè)數(shù)： 50/51頁(yè)
文件大小： 461K
代理商： AK4641
ASAHI KASEI
[AK4641]
MS0301-E-00
2004/05
- 8 -
FILTER CHARACTERISTICS (Stereo CODEC)
(Ta=
10 70°C; AVDD, DVDD, BVDD=2.6 3.6V; fs=44.1kHz; DEM=OFF)
Parameter
Symbol
min
typ
max
Units
ADC Digital Filter (Decimation LPF):
Passband
(Note 16)
±0.1dB
PB
0
-
17.4
kHz
1.0dB
-
20.0
-
kHz
3.0dB
-
21.1
-
kHz
Stopband
SB
25.7
-
kHz
Passband Ripple
PR
-
±0.1
dB
Stopband Attenuation
SA
68
-
dB
Group Delay
(Note 17)
GD
-
17.0
-
1/fs
Group Delay Distortion
GD
-
0
-
s
ADC Digital Filter (HPF):
Frequency Response
3.0dB
FR
-
3.4
-
Hz
(Note 16)
0.5dB
-
10
-
Hz
0.1dB
-
22
-
Hz
DAC Digital Filter:
Passband
(Note 16)
±0.1dB
PB
0
-
19.6
kHz
0.7dB
-
20.0
-
kHz
6.0dB
-
22.05
-
Stopband
SB
25.2
-
kHz
Passband Ripple
PR
-
±0.01
dB
Stopband Attenuation
SA
59
-
dB
Group Delay
(Note 17)
GD
-
17.9
-
1/fs
DAC Digital Filter + SCF:
Frequency Response: 0
20.0kHz
FR
-
±1.0
-
dB
Note 16. 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 (@-0.01dB).
Note 17. The calculated delay time caused by digital filtering. This time is from the input of analog signal to setting of the
16bit data of both channels from the input register to the output register of the ADC. This time includes the group
delay of the HPF. For the DAC, this time is from setting the 16bit data of both channels from the input register to
the output of analog signal.
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參數(shù)描述
AK4641EN 制造商:AKM 制造商全稱(chēng):AKM 功能描述:16bit stereo CODEC with built-in Microphone-amplifier and 16bit Mono CODEC for Bluetooth Interface.
AK4641VN 制造商:AKM 制造商全稱(chēng):AKM 功能描述:16 BIT CODEC WITH BLUETOOTH INTERFACE
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AK4642EN 制造商:AKM 制造商全稱(chēng):AKM 功能描述:Stereo CODEC with MIC/HP/SPK-AMP
AK4642VN 制造商:AKM 制造商全稱(chēng):AKM 功能描述:16-Bit ???￡ Stereo CODEC with MIC/HP/SPK-AMP
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