Datasheet

AD9518-1 Data Sheet
Rev. C | Page 16 of 64
TYPICAL PERFORMANCE CHARACTERISTICS
0 500 1000 1500 2000 2500 3000
CURRENT (mA)
FREQUENCY (MHz)
300
100
120
140
160
180
200
220
240
260
280
3 CHANNELS—6 LVPECL
3 CHANNELS—3 LVPECL
2 CHANNELS—2 LVPECL
1 CHANNEL—1 LVPECL
06430-007
Figure 5. Current vs. Frequency, Direct to Output, LVPECL Outputs
65
35
40
45
50
55
60
2.3 2.72.62.52.4
K
VCO
(MHz/V)
VCO FREQUENCY (GHz)
06430-010
Figure 6. K
VCO
vs. VCO Frequency
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0
CURRENT FROM CP PIN (mA)
VOLTAGE ON CP PIN (V)
PUMP DOWN PUMP UP
06430-011
Figure 7. Charge Pump Characteristics at V
CP
= 3.3 V
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 3.0 4.02.5 3.5 5.04.5
CURRENT FROM CP PIN (mA)
VOLTAGE ON CP PIN (V)
PUMP DOWN PUMP UP
06430-012
Figure 8. Charge Pump Characteristics at V
CP
= 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)
06430-013
Figure 9. PFD Phase Noise Referred to PFD Input vs. PFD Frequency
–210
–224
–222
–220
–218
–216
–214
–212
0 2.52.01.51.00.5
PLL FIGURE OF MERIT (dBc/Hz)
SLEW RATE (V/ns)
06430-136
Figure 10. PLL Figure of Merit (FOM) vs. Slew Rate at REFIN/
REFIN