參數(shù)資料
型號: SI550
廠商: Silicon Laboratories Inc.
英文描述: VOLTAGE-CONTROLLED CRYSTAL OSCILLATOR (VCXO) 10 MHZ TO 1.4 GHZ
中文描述: 壓控晶體振蕩器(VCXO)10 MHz至1.4 GHz
文件頁數(shù): 3/12頁
文件大?。?/td> 197K
代理商: SI550
Si550
Preliminary Rev. 0.3
3
Table 3. CLK± Output Frequency Characteristics
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Nominal Frequency
1,2,3
f
O
LVDS/CML/LVPECL
10
945
MHz
CMOS
10
160
Temperature Stability
1,4
f/f
O
T
A
= –40 to +85 oC
–20
–50
–100
+20
+50
+100
ppm
Absolute Pull Range
1,4
APR
±25
±150
ppm
Aging
Frequency drift over
15 year life.
±10
ppm
Power up Time
5
t
OSC
10
ms
Notes:
1.
See Section 3. "Ordering Information" on page 8 for further details.
2.
Specified at time of order by part number. Also available in frequencies from 970 to 1134 MHz and 1213 to 1417 MHz.
3.
Nominal output frequency set by V
CNOM
= 3/8 x V
DD
.
4.
Selectable parameter specified by part number.
5.
Time from power up or tristate mode to f
O
.
Table 4. CLK± Output Levels and Symmetry
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
LVPECL Output Option
1
V
O
mid-level
V
DD
– 1.42
V
DD
– 1.25
V
V
OD
swing (diff)
1.1
1.9
V
PP
V
SE
swing (single-ended)
0.5
0.93
V
PP
LVDS Output Option
2
V
O
mid-level
1.125
1.20
1.275
V
V
OD
swing (diff)
0.32
0.40
0.50
V
PP
CML Output Option
2
V
O
mid-level
V
DD
– 0.75
V
V
OD
swing
(diff)
0.70
0.95
1.20
V
PP
CMOS Output Option
3
V
OH
I
OH
= 32 mA
0.8 x V
DD
V
DD
V
V
OL
I
OL
= 32 mA
0.4
Rise/Fall time (20/80%)
t
R,
t
F
LVPECL/LVDS/CML
350
ps
CMOS with CL = 15 pF
1
ns
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