參數(shù)資料
型號: AD9518-0A/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 9/64頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD9518-0A
設(shè)計資源: AD9518 Eval Brd Schematics
AD9518 Gerber Files
AD9518-0 BOM
標準包裝: 1
主要目的: 計時,時鐘發(fā)生器
嵌入式:
已用 IC / 零件: AD9518-0A
主要屬性: 2 輸入,6 輸出,2.8GHz VCO
次要屬性: LVPECL 輸出邏輯
已供物品:
Data Sheet
AD9518-0
Rev. C | Page 17 of 64
2.1
1.9
1.7
1.5
1.3
1.1
0.9
2.55
2.95
2.90
2.85
2.80
2.75
2.70
2.65
2.60
V
C
O
TU
N
IN
G
V
OLTA
GE
(
V
)
FREQUENCY (GHz)
06429-
138
Figure 11. VCO Tuning Voltage vs. Frequency
(Note that VCO calibration centers the dc tuning voltage
for the PLL setup that is active during calibration.)
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10
0
CENTER 122.88MHz
SPAN 50MHz
5MHz/DIV
R
EL
A
T
IVE
PO
W
ER
(d
B
)
06429-
137
Figure 12. PFD/CP Spurs; 122.88 MHz; PFD = 15.36 MHz;
LBW = 190 kHz; ICP = 4.2 mA; fVCO = 2.7 GHz
–110
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10
0
CENTER 122.8803006MHz
SPAN 1MHz
100kHz/DIV
R
EL
A
T
IVE
PO
W
ER
(d
B
)
06429-
135
Figure 13. Output Spectrum, LVPECL; 122.88 MHz; PFD = 15.36 MHz;
LBW = 190 kHz; ICP = 4.2 mA; fVCO = 2.7 GHz
1.0
0.6
0.2
–0.2
–0.6
–1.0
0
25
20
15
10
5
D
IFFE
R
E
N
TIA
L
OU
TP
U
T
(
V
)
TIME (ns)
06429-
014
Figure 14. LVPECL Output (Differential) at 100 MHz
1.0
0.6
0.2
–0.2
–0.6
–1.0
0
2
1
D
IFFE
R
E
N
TIA
L
OU
TP
U
T
(
V
)
TIME (ns)
06429-
015
Figure 15. LVPECL Output (Differential) at 1600 MHz
1600
800
1000
1200
1400
0
3
2
1
D
IFFE
R
E
N
TIA
L
S
WIN
G
(
m
V
p-
p)
FREQUENCY (GHz)
06429-
020
Figure 16. LVPECL Differential Swing vs. Frequency
Using a Differential Probe Across the Output Pair
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