AD9444 查看數據表（PDF） - Analog Devices
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AD9444 Datasheet PDF : 40 Pages
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AD9444
75
74
SNR dB @ –40°C
73
SNR dB @ +25°C
72
SNR dB @ +85°C
71
70
69
68
67
66
65
0
20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
Figure 18. SNR vs. Analog Input Frequency, 80 MSPS/LVDS Mode
105
SFDR dBc @ +85°C
100
SFDR dBc @ +25°C
95
90
SFDR dBc @ –40°C
85
80
75
70
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
Figure 19. SFDR vs. Analog Input Frequency, 80 MSPS/LVDS Mode
120
THIRD –dBFS SECOND –dBFS
110
100
90
SFDR –dBFS
SECOND –dBc
80
THIRD –dBc
70
SFDR –dBFS
60
50
40
30
20
10
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT AMPLITUDE (dBc)
Figure 20. Single-Tone SFDR/Second/Third vs.
Analog Input Level, 80 MSPS, AIN = 30.3 MHz
75
74
SNR dB @ –40°C
73
72
SNR dB @ +25°C
71
SNR dB @ +85°C
70
69
68
67
66
65
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
Figure 21. SNR vs. Analog Input Frequency, 80 MSPS/CMOS Mode
105
SFDR dBc @ +85°C
100
95
SFDR dBc @ +25°C
90 SFDR dBc @ –40°C
85
80
75
70
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
Figure 22. SFDR vs. Analog Input Frequency, 80 MSPS/CMOS Mode
120
SECOND –dBFS
THIRD –dBFS
110
100
90
80
SFDR –dBFS
70
60
SECOND –dBc
50
THIRD –dBc
40
SFDR –dBFS
30
20
10
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT AMPLITUDE (dBc)
Figure 23. Single-Tone SFDR/Second/Third vs.
Analog Input Level 80 MSPS, AIN = 70.30 MHz
Rev. 0 | Page 16 of 40
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