AD9054A
55
50
SNR
45
SINAD
40
NYQUIST
35
FREQUENCY
(100MHz)
30
0
20
40
60
80
100 120 140
fIN – MHz
Figure 9. SNR vs. fIN: fS = 200 MSPS
50
49
48
47
46
SNR
45
44
SINAD
43
42
41
40
25 50
75 100 125 150 175 200 225 250 270 300
fS – MSPS
Figure 10. SNR vs. fS: fIN = 19.7 MHz
50
SNR
45
SINAD
40
35
30
25
20
25 50 75 100 125 150 175 200 225 250 270 300
fS – MSPS
Figure 11. SNR vs. fS: fIN = 70.1 MHz
45.4
45.2
45.0
50MHz
20MHz
44.8
44.6
70MHz
44.4
44.2
44.0
–45
0
25
70
90
TC – ؇C
Figure 12. SNR vs. Temperature, fS = 135 MSPS
46.0
45.8
45.6
20MHz
45.4
50MHz
45.2
70MHz
45.0
44.8
44.6
44.4
44.2
44.0
–60 –40 –20 0
20 40
60 80 100
TC – ؇C
Figure 13. SNR vs. Temperature, fS = 200 MSPS
50
48 fS = 135MSPS
fIN = 10.3MHz
46
44
42
SNR
40
38
SINAD
36
34
32
30
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0
ENCODE PULSEWIDTH – ns
Figure 14. SNR vs. Clock Pulsewidth, (tPWH): fS = 135 MSPS
–8–
REV. B