AD9520-1 Analog Devices, Inc., AD9520-1 Datasheet - Page 21

• Manufacturer Part Number: AD9520-1
• Description: 12 Lvpecl/24 Cmos Output Clock Generator With Integrated 2.5 Ghz Vco
• Manufacturer: Analog Devices, Inc.

TYPICAL PERFORMANCE CHARACTERISTICS
350
300
250
200
150
100
Figure 6. Total Current vs. Frequency, CLK-to-Output (PLL Off),
Figure 7. Total Current vs. Frequency, CLK-to-Output (PLL Off),
240
220
200
180
160
140
120
100
80
65
60
55
50
45
40
35
2.3
0
0
LVPECL Outputs Terminated 50 Ω to VS_DRV − 2 V
500
50
Figure 8. K
CMOS Outputs with 10 pF Load
2.4
1000
3 CHANNELS—6 LVPECL
3 CHANNELS—3 LVPECL
2 CHANNELS—2 LVPECL
1 CHANNEL—1 LVPECL
VCO FREQUENCY (GHz)
FREQUENCY (MHz)
3 CHANNELS—6 CMOS
FREQUENCY (MHz)
VCO
100
vs. VCO Frequency
1500
2.5
150
3 CHANNELS—3 CMOS
2 CHANNELS—2 CMOS
1 CHANNEL—1 CMOS
2000
2.6
200
2500
3000
250
2.7
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Figure 11. PFD Phase Noise Referred to PFD Input vs. PFD Frequency
–140
–145
–150
–155
–160
–165
–170
5
4
3
2
1
0
5
4
3
2
1
0
0
0
0.1
Figure 10. Charge Pump Characteristics @ VCP = 5.0 V
Figure 9. Charge Pump Characteristics @ VCP = 3.3 V
PUMP DOWN
0.5
PUMP DOWN
0.5
1.0
1.0
1.5
VOLTAGE ON CP PIN (V)
VOLTAGE ON CP PIN (V)
PFD FREQUENCY (MHz)
1
2.0
1.5
2.5
2.0
3.0
10
3.5
PUMP UP
2.5
PUMP UP
4.0
AD9520-1
3.0
4.5
3
5
100
.5
.0