60
SNR
55
SINAD
50
45
40
–40
–15
5
25
55
85
TC
Figure 13. Differential SNR vs. TC: fIN = 10.3 MHz
60
58
SNR
56
SINAD
54
52
50
48
46
44
42
40
–40
–15
5
25
55
85
TC
Figure 14. Single-Ended SNR vs. TC: fIN = 10.3 MHz
AD9071
60
58
SNR
56
SINAD
54
52
50
48
46
44
42
40
2.5
3.5
4.5
5.5
6.5
7.5
ENCODE PULSEWIDTH – ns
Figure 15. SNR vs. Clock Pulsewidth (tEH): fIN = 10.3 MHz
0
–1
–2
–3dB ROLLOFF POINT
–3
–4
–5
–6
–7
15
60 105
150 195 240 285 330 375 420
fIN – MHz
Figure 16. Frequency Response
90
80
DIFFERENTIAL INPUT
70
60
SINGLE-ENDED
50
40
30
20
10
0
10
20
30
40
fIN – MHz
Figure 17. Second Harmonic Performance: Single-
Ended vs. Differential Input
REV. B
–7–