參數(shù)資料
型號(hào): AK4671EG
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/RCV/HP-AMP
中文描述: 立體聲編解碼器麥克風(fēng)/垃圾車/惠普腺苷
文件頁數(shù): 12/164頁
文件大?。?/td> 1792K
代理商: AK4671EG
[AK4671]
MS0666-E-00
2007/10
- 12 -
ANALOG CHARACTERISTICS (10bit SAR ADC)
(Ta=25
°
C; AVDD=PVDD=SAVDD=DVDD =TVDD2 =TVDD3=3.3V; VSS1=VSS2=VSS3=VSS4=0V; unless
otherwise specified)
Parameter
10bit SAR ADC Characteristics
Resolution
No Missing Codes
Integral Linearity Error
DNL
Analog Input Voltage Range
Offset Error
Gain Error
Accuracy (
Note 31
)
Note 31. Accuracy is the difference between the output code when 1.1V is input to SAIN1, SAIN2 or SAIN3 pin and the
“ideal” code at 1.1V.
FILTER CHARACTERISTICS (CODEC)
(Ta=25
°
C; AVDD=PVDD =SAVDD=2.2
3.6V; DVDD=TVDD2 =TVDD3=1.6
3.6V; fs=44.1kHz; Programmable
Filter=OFF)
Parameter
Symbol
ADC Digital Filter (Decimation LPF):
Passband (
Note 32
)
±
0.16dB
PB
0.66dB
1.1dB
6.9dB
Stopband
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (
Note 33
)
GD
Group Delay Distortion
Δ
GD
DAC Digital Filter (LPF):
Passband (
Note 32
)
±
0.1dB
PB
1.0dB
3.0dB
Stopband
SB
Passband Ripple
PR
Stopband Attenuation
SA
Group Delay (
Note 33
)
GD
DAC Digital Filter (LPF) + SCF:
Frequency Response: 0
20.0kHz
FR
Note 32. The passband and stopband frequencies scale with fs (system sampling rate).
For example, DAC is PB=0.454 x fs (@
0.7dB). Each response refers to that of 1kHz.
Note 33. The calculated delay time caused by digital filtering. This time is from the input of analog signal to setting of the
16-bit data of both channels from the input register to the output register of the ADC.
For the DAC, this time is from setting the 16-bit data of both channels from the input register to the output of
analog signal.
min
-
9
-
-
0
-
-
-
typ
10
10
-
±
1
-
-
-
-
max
-
-
±
2
-
SAVDD
±
3
±
2
±
1
Units
Bits
Bits
LSB
LSB
V
LSB
LSB
%
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
-
-
-
19
0
25.9
-
69
-
-
0
-
-
-
17.4
-
-
-
±
0.1
-
-
kHz
kHz
kHz
kHz
dB
dB
1/fs
20.0
21.1
-
-
-
19
25.7
-
68
-
-
±
1.4
-
dB
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