Datasheet

Data Sheet AD9520-0
Rev. A | Page 23 of 80
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
0 8060 1004020 7050 903010
AMPLITUDE (V)
TIME (ns)
07213-018
Figure 18. CMOS Output with 10 pF Load at 25 MHz
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
0 10987654321
AMPLITUDE (V)
TIME (ns)
2pF LOAD
10pF
LOAD
07213-019
Figure 19. CMOS Output with 2 pF and 10 pF Load at 250 MHz
2.0
1.8
1.6
1.4
1.2
1.0
0 3.01.5 2.0 2.51.00.5
DIFFERENTIAL SWING (V p-p)
FREQUENCY (GHz)
07213-123
Figure 20. LVPECL Differential Voltage Swing vs. Frequency
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 700
2pF
10pF
20pF
600500400300200100
AMPLITUDE (V)
FREQUENCY (MHz)
07213-124
Figure 21. CMOS Output Swing vs. Frequency and Capacitive Load
–40
–150
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
1k 100M1M 10M100k10k
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
07213-023
Figure 22. Internal VCO Phase Noise (Absolute), Direct-to-LVPECL at 2550 MHz
–40
–150
–140
–130
–120
–110
–100
–90
–80
–70
–60
–50
1k 100M1M 10M100k10k
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
07213-024
Figure 23. Internal VCO Phase Noise (Absolute), Direct-to-LVPECL at 2750 MHz