AD9518-3 datasheet(16/64 Pages) AD

16 / 64 page

AD9518-3

Data Sheet

Rev. B | Page 16 of 64

TYPICAL PERFORMANCE CHARACTERISTICS

500

1000

1500

2000

2500

3000

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

Figure 5. Current vs. Frequency, Direct to Output, LVPECL Outputs

1.7

1.8

1.9

2.0

2.1

2.2

2.3

VCO FREQUENCY (GHz)

Figure 6. KVCO vs. VCO Frequency

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

1.0

1.5

2.0

2.5

3.0

VOLTAGE ON CP PIN (V)

PUMP DOWN

PUMP UP

Figure 7. Charge Pump Characteristics at VCP = 3.3 V

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

1.0

1.5

2.0

3.0

4.0

2.5

3.5

5.0

4.5

VOLTAGE ON CP PIN (V)

PUMP DOWN

PUMP UP

Figure 8. Charge Pump Characteristics at VCP = 5.0 V

–140

–145

–150

–155

–160

–165

–170

0.1

100

PFD FREQUENCY (MHz)

Figure 9. PFD Phase Noise Referred to PFD Input vs. PFD Frequency

–210

–224

–222

–220

–218

–216

–214

–212

2.0

1.5

1.0

0.5

SLEW RATE (V/ns)

Figure 10. PLL Figure of Merit (FOM) vs. Slew Rate at REFIN/REFIN

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