AD9520-1/PCBZ Analog Devices Inc, AD9520-1/PCBZ Datasheet - Page 22

• Manufacturer Part Number: AD9520-1/PCBZ
• Description: BOARD EVAL FOR AD9520-1
• Manufacturer: Analog Devices Inc

Specifications of AD9520-1/PCBZ

• Design Resources: Synchronizing Multiple AD9910 1 GSPS Direct Digital Synthesizers (CN0121) Phase Coherent FSK Modulator (CN0186)
• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9520-1
• Primary Attributes: 12 LVPECL/24 CMOS Output Clock Generator with 2.5 GHz VCO
• Secondary Attributes: SPI and I2C Compatible Control Port
• Silicon Manufacturer: Analog Devices
• Application Sub Type: PLL Clock Synthesizer
• Kit Application Type: Clock & Timing
• Silicon Core Number: AD9520-0, AD9520-2, AD9520-2
• Silicon Family Name: AD9520-X
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9520-1
Figure 12. PLL Figure of Merit (FOM) vs. Slew Rate at REFIN/ REFIN
–208
–210
–212
–214
–216
–218
–220
–222
–224
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
0
100
2.3
Figure 14. PFD/CP Spurs; 122.88 MHz; PFD = 15.36 MHz;
0
LBW = 127 kHz; I
SINGLE-ENDED INPUT
Figure 13. VCO Tuning Voltage vs. Frequency
105
0.2
DIFFERENTIAL INPUT
110
2.4
0.4
INPUT SLEW RATE (V/ns)
115
CP
= 3.0 mA; f
FREQUENCY (GHz)
FREQUENCY (MHz)
0.6
120
2.5
125
VCO
0.8
= 2458 MHz (new)
130
1.0
2.6
135
1.2
140
145
1.4
2.7
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Figure 15. Output Spectrum, LVPECL; 122.88 MHz; PFD = 15.36 MHz;
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–0.4
–0.8
–1.2
122.38
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1.2
0.8
0.4
0
0
Figure 16. CMOS Output V
10k
0
0
LBW = 127 kHz; I
Figure 17. LVPECL Output (Differential) @ 100 MHz
VS_DRV = 3.135V
VS_DRV = 2.35V
2
122.58
4
6
CP
8
FREQUENCY (MHz)
RESISTIVE LOAD (Ω)
122.78
= 3.0 mA; f
10
OH
TIME (ns)
(Static) vs. R
12
1k
VS_DRV = 3.3V
VS_DRV = 2.5V
122.98
VCO
14
= 2458 MHz (new)
16
LOAD
18
123.18
(to Ground)
20
22
123.38
2
4
100