AD9522-4 Analog Devices, Inc., AD9522-4 Datasheet - Page 20

• Manufacturer Part Number: AD9522-4
• Description: 12 Lvds/24 Cmos Output Clock Generator With Integrated 1.6 Ghz Vco
• Manufacturer: Analog Devices, Inc.

AD9522-4
TYPICAL PERFORMANCE CHARACTERISTICS
VCO Divider Bypassed, LVDS Outputs Terminated 100 Ω Across Differential Pair
Figure 6. Total Current vs. Frequency, CLK-to-Output (PLL Off), Channel and
Figure 7. Total Current vs. Frequency, CLK-to-Output (PLL Off), Channel and
275
250
225
200
175
150
125
100
240
220
200
180
160
140
120
100
75
80
50
45
40
35
30
25
20
1.45
0
VCO Divider Bypassed, CMOS Outputs with 10 pF Load
0
200
50
Figure 8. K
1.55
VCO FREQUENCY (GHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
400
VCO
100
vs. VCO Frequency
3 CHANNELS—6 LVDS
2 CHANNELS—8 CMOS
1 CHANNEL—2 CMOS
1.65
3 CHANNELS—3 LVDS
2 CHANNELS—2 LVDS
1 CHANNEL—1 LVDS
600
150
1 CHANNEL—1 CMOS
2 CHANNELS—2 CMOS
800
200
1.75
1000
250
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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
Figure 10. Charge Pump Characteristics @ VCP = 5.0 V
0.1
Figure 9. Charge Pump Characteristics @ VCP = 3.3 V
PUMP DOWN
0.5
0.5
PUMP DOWN
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
3.0
4.5
3
5
100
.5
.0