AD9054A
–8–
rev. b
f
在
–
MHz
SNR
–
dB
55
50
30
0 14020 40 60 80 100 120
45
40
35
SNR
SINAD
NYQUIST
频率
(100mhz)
图示 9. snr vs. f
在
:f
S
= 200 msps
f
S
–
MSPS
SNR
–
dB
50
40
25 50 100 150 200 250 300
49
44
43
42
41
47
45
48
46
75 125 175 225 270
SNR
SINAD
图示 10. snr vs. f
S
: f
在
= 19.7 mhz
f
S
–
MSPS
SNR
–
dB
50
40
25
50 100 150 200 250 300
35
30
25
20
45
SNR
SINAD
75 125 175 225 270
图示 11. snr vs. f
S
:f
在
= 70.1 mhz
SNR
–
dB
T
C
–
C
44.0
–
45
0
25 70 90
45.2
44.8
44.4
44.2
45.4
45.0
44.6
70MHz
20MHz
50MHz
图示 12. snr vs. 温度, f
S
= 135 msps
SNR
–
dB
T
C
–
C
46.0
44.0
–
60 100
–
40
–
20 0 20 40 60 80
45.8
45.2
44.8
44.4
44.2
45.6
45.4
45.0
44.6
20MHz
50MHz
70MHz
图示 13. snr vs. 温度, f
S
= 200 msps
SNR
–
dB
encode pulsewidth
–
ns
50
30
0.0 8.01.0 2.0 3.0 4.0 5.0 6.0 7.0
48
42
38
34
32
46
44
40
36
f
S
= 135msps
f
在
= 10.3mhz
SNR
SINAD
图示 14. snr vs. clock pulsewidth, (t
PWH
): f
S
= 135 msps