AD6645(Rev0) データシートの表示（PDF） - Analog Devices
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AD6645 Datasheet PDF : 20 Pages
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AD6645
75.5
75.0
T = –40 C
74.5
T = +85 C
74.0
T = +25 C
73.5
73.0
72.5
ENCODE = 80MSPS @ AIN = –1dBFS
TEMP = –40 C, +25 C, +85 C
72.0
0
10
20
30
40
50
60
70
FREQUENCY – MHz
TPC 7. Noise vs. Analog Frequency
94
92
90
T = +25 C
88
T = –40 C, +85 C
86
84
82
ENCODE = 80MSPS @ AIN = –1dBFS
TEMP = –40 C, +25 C, +85 C
80
0
10
20
30
40
50
60
70
ANALOG INPUT FREQUENCY – MHz
TPC 8. Harmonics vs. Analog Frequency
76
75
74
73
72
71
ENCODE = 80MSPS @ AIN = –1dBFS
TEMP = 25 C
70
0 20 40 60 80 100 120 140 160 180 200
ANALOG FREQUENCY – MHz
TPC 9. Noise vs. Analog Frequency (IF)
100
95
WORST OTHER SPUR
90
85
80
HARMONICS (2ND, 3RD)
75
70
65
ENCODE = 80MSPS @ AIN = –1dBFS
TEMP = 25 C
60
0 20 40 60
80 100 120 140 160 180 200
ANALOG FREQUENCY – MHz
TPC 10. Harmonics vs. Analog Frequency (IF)
120
110
dBFS
100
90 ENCODE = 80MSPS
80 AIN = 30.5MHz
70
dBc
60
50
40
SFDR = 90dB
REFERENCE LINE
30
20
10
0
–90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT POWER LEVEL – dBFS
TPC 11. Single Tone SFDR @ 30.5 MHz
120
110
dBFS
100
90 ENCODE = 80MSPS
80 AIN = 69.1MHz
70
60
dBc
50
SFDR = 90dB
REFERENCE LINE
40
30
20
10
0
–90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT POWER LEVEL – dBFS
TPC 12. Single Tone SFDR @ 69.1 MHz
–10–
REV. 0
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