AD9245 Просмотр технического описания (PDF) - Analog Devices
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AD9245 Datasheet PDF : 32 Pages
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AD9245
75
74
–40°C
73
+25°C
72
71
+85°C
70
69
68
67
66
65
0
25
50
75
100
125
INPUT FREQUENCY (MHz)
Figure 20. SNR vs. Input Frequency
90
SFDR (DCS ON)
88
86
84
SFDR (DCS OFF)
82
80
78
76
74
SNR (DCS OFF)
72
SNR (DCS ON)
70
30
35
40
45
50
55
60
65
70
DUTY CYCLE (%)
Figure 21. SNR/SFDR vs. Clock Duty Cycle
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
9.6
19.2
28.8
38.4
FREQUENCY (MHz)
Figure 22. 32K FFT WCDMA Carrier @ FIN = 96 MHz; Sample Rate = 76.8 MSPS
100
95
90
85
–40°C
80
+25°C
+85°C
75
70
0
25
50
75
100
125
INPUT FREQUENCY (MHz)
Figure 23. SFDR vs. Input Frequency
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
9.6
19.2
28.8
38.4
FREQUENCY (MHz)
Figure 24. Two 32K FFT CDMA-2000 Carriers @
FIN = 46.08 MHz; Sample Rate = 61.44 MSPS
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
9.6
19.2
28.8
38.4
FREQUENCY (MHz)
Figure 25. Two 32K FFT WCDMA Carriers @
FIN = 76.8 MHz; Sample Rate = 61.44 MSPS
Rev. D | Page 15 of 32
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