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AK5720VT Datasheet, PDF (8/25 Pages) HuaXinAn Electronics CO.,LTD – ADC | |||
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[AK5720]
9. ãã£ã«ã¿ç¹æ§(fs=48kHz)
(Ta=25ï°C; VA=VD=2.7ï¾5.5V, fs=48kHz)
Parameter
Symbol
min
typ
max
Unit
ADC Digital Filter (Decimation LPF): SHARP ROLL-OFF(FSEL pin=âLâ)
Passband (Note 5)
Stopband (Note 5)
Stopband Attenuation
±0.16dB
ï0.28dB
ï3.0dB
PB
0
-
18.8
kHz
-
20.0
-
kHz
-
22.8
-
kHz
SB
28.4
-
-
kHz
SA
71
-
-
dB
Group Delay Distortion 0 ~ 20.0kHz
ïGD
-
0
-
1/fs
Group Delay (Note 6)
GD
-
15.5
-
1/fs
ADC Digital Filter (Decimation LPF): SHORT DELAY SHARP ROLL-OFF FILTER(FSEL pin=âHâ)
Passband (Note 5)
±0.16dB
ï0.28dB
ï3.0dB
Stopband (Note 5)
Stopband Attenuation
Group Delay Distortion 0 ~ 20.0kHz
Group Delay (Note 6)
PB
SB
SA
ïGD
GD
0
-
-
20.0
-
22.8
28.4
72
-
-
-
5.5
18.8
kHz
-
kHz
-
kHz
-
kHz
-
dB
2.4
1/fs
-
1/fs
ADC Digital Filter (HPF):
Frequency Response
ï3.0dB
FR
-
1.0
-
Hz
ï0.5dB
-
2.5
-
Hz
(Note 5)
ï0.1dB
-
6.5
-
Hz
Note 5. åæ¯å¹
ç¹æ§ã®å¨æ³¢æ°ã¯ fs (ã·ã¹ãã ãµã³ããªã³ã°ã¬ã¼ã)ã«æ¯ä¾ãã¾ãã
ä¾ãã°ãPB=0.45 à fs(@ï1.0dB)ã§ãã
Note 6. ãã£ã¸ã¿ã«ãã£ã«ã¿ã«ããæ¼ç®é
延ã§ãã¢ããã°ä¿¡å·ãå
¥åããã¦ãã両ãã£ãã«ã®24bitãã¼
ã¿ãåºåã¬ã¸ã¹ã¿ã«ã»ãããããã¾ã§ã®æéã§HPFã«ãã群é
延ãå«ã¿ã¾ãã
MS1641-J-00
-7-
2014/04
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