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參數(shù)資料
| 型號： | AKD5394A |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Super High Performance 192kHz 24-Bit ADC |
| 中文描述： | 超高性能192kHz的24位ADC |
| 文件頁數(shù)： | 21/24頁 |
| 文件大?。?/td> | 174K |
| 代理商： | AKD5394A |
ASAHI KASEI
[AK5394A]
MS0137-E-01
2002/07
- 21 -
5.
Measurement example
Figure 11 plot is the THD+N vs Input Level with circuit Figure 9 and circuit Figure 10. X-AXIS is input level, Y-AXIS is
THD+N (ratio).
Measurement condition
Ta=25
°
C; VA=5.0V; VD=3.3V; AGND, BGND, DGND=0V; fs=48kHz; Input frequency=1kHz; 24 bit Output;
Measurement frequency =10Hz
～
20kHz; DFS0=“L”, DFS1=“L”, VREF capacitors=1000μF
Measured by Audio Precision System Two.
AKM
AK5394A THD+N vs Input Level
last.at2c
-30
-2
-28
-26
-24
-22
-20
-18
-16
-14
-12
-10
-8
-6
-4
dBr
-120
-80
-117.5
-115
-112.5
-110
-107.5
-105
-102.5
-100
-97.5
-95
-92.5
-90
-87.5
-85
-82.5
d
B
Figure 11. THD+N(ratio) vs. Input Level
Figure 12 shows the relationship between THD+N and Frequency with capacitors on Table 4. Input circuit uses Figure 9.
Measurement condition
Ta=25
°
C; VA=5.0V; VD=3.3V; AGND, BGND, DGND=0V; fs=48kHz; 24 bit Output; BW=10Hz
～
20kHz; DFS0=“L”,
DFS1=“L”, Measured by Audio Precision System Two.
AKM
AK5394A THD+N vs Frequency
last.at2c
-130
-60
-125
-120
-115
-110
-105
-100
-95
-90
-85
-80
-75
-70
-65
d
B
F
S
10
20k
20
50
100
200
500
1k
2k
5k
10k
Hz
Figure 12. THD+N vs. Frequency
Figure 10
Figure 9
10μF
100μF
220μF
470μF
1000μF
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