Datasheet

Data Sheet AD9236
Rev. C | Page 13 of 36
72.0
68.5
69.0
69.5
70.0
70.5
71.0
–40C
+25C
+85C
71.5
SNR (dBc)
68.0
0 25 50 75 100 125
INPUT FREQUENCY (MHz)
03066-0-045
Figure 21. SNR vs. Input Frequency
95
60
65
70
75
80
85
90
SNR/SFDR (dBc)
55
30 35 40 45 50 55 60 65 70
DUTY CYCLE (%)
03066-0-046
SFDR (DCS ON)
SFDR (DCS OFF)
SNR (DCS ON)
SNR (DCS OFF)
Figure 22. SNR/SFDR vs. Clock Duty Cycle
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
AMPLITUDE (dBFS)
–120
0 7.68 15.36 23.04 30.72
FREQUENCY (MHz)
03066-0-060
Figure 23. 32K FFT CDMA-2000 Carrier @ F
IN
= 46.08 MHz, Sample Rate =
61.44 MSPS
100
–40C
+25C
+85C
SFDR (dBc)
70
75
80
85
90
95
0 25 50 75 100 125
INPUT FREQUENCY (MHz)
03066-0-047
Figure 24. SFDR vs. Input Frequency
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
AMPLITUDE (dBFS)
–120
0 7.68 15.36 23.04 30.72
FREQUENCY (MHz)
03066-0-061
Figure 25. 32K FFT WCDMA Carrier @ F
IN
=76.8 MHz,
Sample Rate = 61.44 MSPS