VOLTAGE CONTROLLED CRYSTAL OSCILLATOR
VCXO-C
FEATURES
The VCXO-C series is a tight stability, voltage controlled crystal
oscillator. The frequency can be pulled a minimum ±100PPM by
applying a voltage between 0.5V & 4.5V to pin 1. This oscillator is
designed to be used in applications requiring a general purpose
VCXO with excellent cost vs performance characteristics.
HCMOS/TTL Output
Pullability
Tight Stabilities
Low Power Consumption
Rugged Resistance Weld
-40 ~ +85ºC Option (R version)
MODEL NUMBER SELECTION
Model
Stability Pullability(MIN)
Number
Vc = 2.5 ±2V
(MAX)*
VCXO-C2
±200
±50
VCXO-C3
±100
±50
VCXO-C4
±100
±25
VCXO-C7
±50
±25
VCXO-C8
±100
±100
ELECTRICAL CHARACTERISTICS (V
DD
= 5.0V, C
L
= 15pF)
Frequency Range
Temperature Range
Operating
Storage
Supply Voltage
Control Voltage
Input Current
Output Symmetry
Rise Time
Fall Time
Output Voltage
Output Current
Output Load
Start-up Time
Phase Noise
PARAMETERS
FREQUENCY RANGE
(Fo)
(T
OPR
)
(T
STG
)
(V
DD
)
(Vc)
(I
DD
)
1.000
1.000
1.000
1.000
24.000+
30.000+
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
~ 40.000
~
~
~
~
~
~
~
40.000
40.000
24.000
30.000
40.000
40.000
40.000
CONDITIONS
MIN
1.000
-10
-30
+4.75
+0.5
40.000
**
+70
***
+85
+5.25
+4.5
15
20
30
60
10
10
0.5
3.2
-0.1
8
15
10
MAX
UNITS
MHz
ºC
V
V
mA
%
nS
V
mA
LSTTL
pF
mS
dBc/Hz
PPM
%
kHz
VCXO
(T
R)
(T
F
)
(V
OL
)
(V
OH
)
(I
OL
)
(I
OH
)
(T
S
)
~ 40.000
~ 40.000
~ 40.000
~ 40.000
~ 40.000
~ 40.000
~ 40.000
2.5V
1.0V ~ 4.0V
4.0V ~ 1.0V
I
OL
= 3.2 mA
I
OH
= -0.1 mA
V
OL
= 0.5 V
V
OH
= 4.5V
TTL Load
HCMOS Load
Fo + 1 kHz
Fo + 10 kHz
V
DD
= 5.0V ±0.25V
40
4.5
Frequency
Stability vs Voltage
Linearity
Modulation Bandwidth
*
-125
-130
-1.0
-10
10
+1.0
+10
Inclusive of 25ºC tolerance, operating temperature range, input voltage change, load change, aging, shock, vibration and Vc = 2.5V.
All specifications subject to change without notice.
** Higher frequencies available on an individual inquiry basis.
*** -40 ~ +85ºC "R" version available (ex: VCXO-C3R) Rev. 06/27/00
All dimensions are in millimeters.
70
FOXElectronics
5570 Enterprise Parkway
Fort Myers, Florida 33905
941-693-0099
FAX 941-693-1554
http://www.foxonline.com
© 2000 FOX ELECTRONICS
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