參數(shù)資料
型號: AK4516AVF
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: 3V 16BIT ADC&DAC WITH BUILT-IN PGA
中文描述: 3V的16位ADC
文件頁數(shù): 7/39頁
文件大小: 355K
代理商: AK4516AVF
ASAHI KASEI
[AK4516A]
M0026-E-00
1998/08
- 7 -
FILTER CHARACTERISTICS
(Ta=25
°
C
; VA,VD=2.5
3.6V; fs=44.1kHz; DEM bit="0")
Parameter
ADC Digital Filter (LPF):
Passband (Note 6 )
Symbol
min
typ
max
Units
±
0.1dB
-0.55dB
-1.2dB
PB
0
19.0
20.0
16.5
kHz
kHz
kHz
kHz
dB
dB
1/fs
us
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 7 )
Group Delay Distortion
ADC Digital Filter (HPF):
Frequency Response (Note 6 ) -3.0dB
SB
PR
SA
GD
GD
26.0
±
0.1
68
16.1
0
-0.5dB
-0.1dB
FR
3.4
10
22
Hz
Hz
Hz
DAC Digital Filter:
Passband (Note 6 )
±
0.1dB
-6.0dB
PB
0
22.05
20.0
kHz
kHz
kHz
dB
dB
1/fs
Stopband
Passband Ripple
Stopband Attenuation
Group Delay (Note 7 )
DAC Digital Filter + Analog Filter
Frequency Response 0
20.0kHz
Note 6 .The passband and stopband frequencies scale with fs (system sampling rate).
For example, ADC is PB=0.431*fs(@-0.55dB), DAC is PB=0.454*fs(@-0.1dB).
7 .The calculating delay time which occurred by digital filtering. This time is from the input of analog signal to
setting the 16 bit data of both channels to the output register for ADC.
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
24.1
±
0.06
43
14.7
FR
±
0.5
dB
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