Datasheet

Data Sheet AD9518-4
Rev. B | Page 19 of 64
–
120
–160
–150
–140
–130
1k 100M10M1M100k10k
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
06433-208
Figure 23. Phase Noise (Absolute) Clock Generation; Internal VCO at
1.475 GHz; PFD = 15.36 MHz; LBW = 135 kHz; LVPECL Output = 122.88 MHz
–
90
–100
–110
–120
–130
–140
–150
–160
1k 100M10M1M100k10k
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
06433-209
Figure 24. Phase Noise (Absolute) Clock Cleanup; Internal VCO at 1.556 GHz;
PFD = 19.44 MHz; LBW = 12.8 kHz; LVPECL Output = 155.52 MHz
–
120
–160
–150
–140
–130
1k 100M10M1M100k10k
PHASE NOISE (dBc/Hz)
FREQUENCY (Hz)
06433-140
Figure 25. Phase Noise (Absolute); External VCXO (Toyocom TCO-2112) at
245.76 MHz; PFD = 15.36 MHz; LBW = 250 Hz; LVPECL Output = 245.76 MHz
1000
100
10
1
0.1
0.01 0.1 1 10 100 1000
INPUT JITTER AMPLITUDE (UI p-p)
JITTER FREQUENCY (kHz)
06433-148
OC-48 OBJECTIVE MASK
AD9518
NOTE: 375UI MAX AT 10Hz OFFSET IS THE
MAXIMUM JITTER THAT CAN BE
GENERATED BY THE TEST EQUIPMENT.
FAILURE POINT IS GREATER THAN 375UI.
f
OBJ
Figure 26. GR-253 Jitter Tolerance Plot