VFXO250
XO – Ultra Small and Low Power
2.5 x 2.0 mm SMD, CMOS
Features
1MHz to 50MHz Frequency Range
3.3V, 2.5V, or 1.8V Supply Voltage
Tight symmetry
Low Jitter
Low power consumption
RoHS Status
Applications
Portable Communications
Test & Measurement
Gigabit Ethernet
Electrical Specifications
Parameter
Symbol
Condition
Min
1
Typ
Max
50
Unit
Note
Other
frequencies
will be
evaluated on
a case by
case basis
Order Code B
Order Code C
Order Code D
Frequency
Range
F
Standard Frequencies
Over all conditions of :-
Operating Temperature;
Supply Voltage; 1 Year
Aging; shock & vibration
Aging
24, 26, 40
MHz
Frequency
Stability
∆F/F
50
25
20
3
-10
-20
-40
2.97
2.25
1.62
3.3V
3.30
2.50
1.80
2.5V
10
50
ppm
1
st
year
Order Code C
Order Code D
Order Code G
Operating
Temperature
Output
Supply
Voltage
T
+60
+70
C
+85
CMOS 15pF
3.63
2.75
1.98
1.8V
7
55
<1
mA
V
V
DD
Order Code E
Order Code G
Order Code H
Supply
Current
Icc Max
15
45
Max current
across entire
temp range
Duty Cycle
RMS Jitter
Tj
12KHz to 20MHz
%
ps
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0711
1
VFXO250
XO – Ultra Small and Low Power
2.5 x 2.0 mm SMD, CMOS
Electrical Specifications
Parameter
Rise / Fall
Time
Logic “1”
Level
Logic “0”
Level
Start up time
Output Active or
Enable
TRISTATE
Output in High
Impedance State
(Disable)
0.7 V
DD
V
0.3 V
DD
Symbol
Tr/Tf
Voh
Vol
Condition
1MHz
≤
Fo < 20MHz
20MHz
≤
Fo < 50MHz
Min
3.3V
3
2
90%
-
Typ
2.5V
4
3
Max
1.8V
5
4
-
10%
2
Unit
ns
V
DD
V
DD
ms
Note
How to Order
VFXO250
—
—
FREQUENCY, MHz
Frequency Stability
Code
Output
B
± 50ppm
C
± 25ppm
D
± 20ppm
Temp. Range
Code
Output
C
-10°C ~ 60°C
D
-20°C ~70°C
G
-40°C ~ 85°C
Supply Voltage
Code
Output
E
3.3V
G
2.5V
H
1.8V
Available Frequency Stabilities over Operating Temperature Ranges
Code
C
D
G
Temperature Range
-10°C to 60°C
-20°C to 70°C
-40°C to 85°C
±50ppm
±25ppm
±20ppm
º
º
º
Case by case
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0711
2
VFXO250
XO – Ultra Small and Low Power
2.5 x 2.0 mm SMD, CMOS
Environmental and Mechanical
Parameter
Storage Temperature
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
Specification
-55C to +125C
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-883, Method 1011, Condition A
Per MIL-STD-883, Method 2007, Condition A
260C for 10s max
Leak rate less than 5x10
-8
atm.cc/s of helium
Top View
Bottom View
Pin #
1
2
3
4
Connection
TRISTATE
GND
Output
V
DD
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevA0711
3
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