AD9518-2 Analog Devices, Inc., AD9518-2 Datasheet - Page 16

• Manufacturer Part Number: AD9518-2
• Description: 6-output Clock Generator With Integrated 2.2 Ghz Vco
• Manufacturer: Analog Devices, Inc.

AD9518-2
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5. Current vs. Frequency, Direct-to-Output, LVPECL Outputs
300
280
260
240
220
200
180
160
140
120
100
48
46
44
42
40
38
36
34
32
30
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2.00
0
0
0
Figure 7. Charge Pump Characteristics @ V
2.05
500
PUMP DOWN
0.5
Figure 6. K
2.10
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)
VCO
2.15
vs. VCO Frequency
1.5
1500
2.20
2.0
2000
2.25
PUMP UP
2.5
CP
2500
= 3.3 V
2.30
3.0
3000
2.35
Rev. 0 | Page 16 of 64
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