AD9525 데이터 시트보기 (PDF) - Analog Devices
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AD9525 Datasheet PDF : 48 Pages
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Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
6
5
4
PUMP UP
PUMP DOWN
3
2
1
0
0
1
2
3
4
VOLTAGE ON CP PIN (V)
Figure 5. Charge Pump Characteristics at VDD_CP = 3.3 V
6
5
4
PUMP UP
PUMP DOWN
3
2
1
0
0
1
2
3
4
5
6
VOLTAGE ON CP PIN (V)
Figure 6. Charge Pump Characteristics at VDD_CP = 5.0 V
–217.5
–218.0
–218.5
–219.0
–219.5
–220.0
–220.5
–221.0
–221.5
–222.0
–222.5
0
0.2
0.4
0.6
0.8
1.0
1.2
SLEW RATE OF REFA (V/ns)
Figure 7. PLL Figure of Merit (FOM) vs. Slew Rate at REFA
AD9525
1
CH1 500mV Ω
2.5ns/DIV
40.0GS/s
A CH1 40.0mV
Figure 8. LVPECL Output (Differential) at 122.88 MHz
2.5
2.3
960mV p-p
2.1
780mV p-p
1.9
1.7
600mV p-p
1.5
1.3
1.1
400mV p-p
0.9
0.7
0.5
0
500
1000 1500 2000 2500 3000
FREQUENCY (MHz)
Figure 9. LVPECL Differential Voltage Swing vs. Frequency
Rev. A | Page 15 of 48
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