Datasheet

AD9522-1
Rev. 0 | Page 20 of 84
TYPICAL PERFORMANCE CHARACTERISTICS
275
250
225
200
175
150
125
100
75
0 200 400 600 800 1000
CURRENT (mA)
FREQUENCY (MHz)
3 CHANNELS—6 LVDS
3 CHANNELS—3 LVDS
2 CHANNELS—2 LVDS
1 CHANNEL—1 LVDS
07220-108
Figure 6. Total Current vs. Frequency, CLK-to-Output (PLL Off), Channel and
VCO Divider Bypassed, LVDS Outputs Terminated 100 Ω Across Differential Pair
240
220
200
180
160
140
120
100
80
0 50 100 150 200 250
CURRENT (mA)
FREQUENCY (MHz)
2 CHANNELS—8 CMOS
2 CHANNELS—2 CMOS
1 CHANNEL—2 CMOS
1 CHANNEL—1 CMOS
07220-109
Figure 7. Total Current vs. Frequency, CLK-to-Output (PLL Off), Channel and
VCO Divider Bypassed, CMOS Outputs with 10 pF Load
07220-010
65
35
40
45
50
55
60
2.3 2.72.62.52.4
K
VCO
(MHz/V)
VCO FREQUENCY (GHz)
Figure 8. K
VCO
vs. VCO Frequency
5
4
3
2
1
0
033.02.52.01.51.00.5
CURRENT FROM CP PIN (mA)
VOLTAGE ON CP PIN (V)
.5
PUMP UPPUMP DOWN
07220-111
Figure 9. Charge Pump Characteristics @ VCP = 3.3 V
5
4
3
2
1
0
054.03.0 4.53.52.52.01.51.00.5
CURRENT FROM CP PIN (mA)
VOLTAGE ON CP PIN (V)
.0
PUMP DOWN PUMP UP
07220-112
Figure 10. Charge Pump Characteristics @ VCP = 5.0 V
–
140
–145
–150
–155
–160
–165
–170
0.1 1 10010
PFD PHASE NOISE REFERRED TO PFD INPUT
(dBc/Hz)
PFD FREQUENCY (MHz)
07220-013
Figure 11. PFD Phase Noise Referred to PFD Input vs. PFD Frequency