AD9518-0 Analog Devices, Inc., AD9518-0 Datasheet - Page 16

• Manufacturer Part Number: AD9518-0
• Description: 6-output Clock Generator With Integrated 2.8 Ghz Vco
• Manufacturer: Analog Devices, Inc.

AD9518-0
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5. Current vs. Frequency, Direct to Output, LVPECL Outputs
300
280
260
240
220
200
180
160
140
120
100
65
60
55
50
45
40
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.55
0
0
0
Figure 7. Charge Pump Characteristics @ V
500
PUMP DOWN
0.5
Figure 6. VCO K
2.65
1.0
1000
3 CHANNELS—6 LVPECL
3 CHANNELS—3 LVPECL
2 CHANNELS—2 LVPECL
VCO FREQUENCY (GHz)
1 CHANNEL—1 LVPECL
VOLTAGE ON CP PIN (V)
FREQUENCY (MHz)
1.5
VCO
1500
2.75
vs. Frequency
2.0
2000
2.85
PUMP UP
2.5
CP
2500
= 3.3 V
3.0
3000
2.95
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Figure 9. PFD Phase Noise Referred to PFD Input vs. PFD Frequency
Figure 10. PLL Figure of Merit (FOM) vs. Slew Rate at REFIN/ REFIN
–210
–212
–214
–216
–218
–220
–222
–224
–140
–145
–150
–155
–160
–165
–170
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0.1
0
0
Figure 8. Charge Pump Characteristics @ V
0.5
PUMP DOWN
0.5
1.0
1.5
VOLTAGE ON CP PIN (V)
PFD FREQUENCY (MHz)
1
SLEW RATE (V/ns)
1.0
2.0
2.5
3.0
1.5
10
3.5
PUMP UP
CP
2.0
4.0
= 5.0 V
4.5
2
5.0
100
.5