AD9444 查看數據表（PDF） - Analog Devices
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AD9444 Datasheet PDF : 40 Pages
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SFDR: 102dBFS
–20
–40
–60
–80
–100
–120
0
5
10
15
20
25
30
35
40
FREQUENCY (MHz)
Figure 24. 32K Point Two-Tone FFT 80 MSPS/9.8 MHz/10.8 MHz
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
SFDR: –100dBFS
5
10
15
20
25
30
35
40
FREQUENCY (MHz)
Figure 25. 32K Point Two-Tone FFT 80 MSPS/69.3 MHz/70.3 MHz
100
95
90
85
80
75
70
20 30 40 50 60 70 80 90 100 110
SAMPLE RATE (MSPS)
Figure 26. SFDR vs. Sample Rate, VIN = 10.3 MHz @ −0.5 dBFS
AD9444
0
–10
90dBFS REFERENCE LINE
–20
–30
SFDR (dBc)
–40
–50
–60
WORST THIRD-ORDER IMD (dBc)
–70
–80
–90
SFDR (dBFS)
–100
–110
–120
WORST THIRD-ORDER IMD (dBFS)
–110 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT LEVEL (dBFS)
Figure 27. Two-Tone SFDR vs. Analog Input Level, AIN = 9.8 MHz/10.8 MHz
0
–10
90dBFS REFERENCE LINE
–20
–30
–40 SFDR (dBc)
–50
–60
WORST THIRD-ORDER IMD (dBc)
–70
–80
SFDR (dBFS)
–90
–100
–110
WORST THIRD-ORDER IMD (dBFS)
–120
–110 –100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT LEVEL (dBFS)
Figure 28. Two-Tone SFDR vs. Analog Input Level, AIN = 69.3 MHz/70.3 MHz
100
95
90
85
80
75
70
10 20 30 40 50 60 70 80 90 100 110
SAMPLE RATE (MSPS)
Figure 29. SFDR vs. Sample Rate, VIN = 70.3 MHz @ −0.5 dBFS
Rev. 0 | Page 17 of 40
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