VFT14AS Series
Micro-miniature, Evacuated CXO
Product Data Sheet
Features
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Smallest OCXO available (< 1 cm
3
, 2g weight)
SC-cut crystal
High Vacuum Sealed Enclosure
Extremely Low Power Consumption (<100 mW)
Very Fast Warm-up Time (15s)
-9
High Stability (up to ± 5x10 over 0°C to 50°C)
Low Aging (5x10 /day, 5x10 /year)
Very Low Phase Noise (-160dBc/Hz TYP)
HCMOS/TTL output, sine available
4.8 MHz to 180 MHz Frequencies Available
DIL 14 “gull-wing” compatible pinout
-10
-8
Applications
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Telecommunications
Data Communications
Battery Powered Systems and Equipment
GPS
Instrumentation
SARSAT Beacons
75 South Street, Hopkinton, MA 01748
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800-982-5737
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508-435-6831
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FAX 508 435-5289
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www.valpeyfisher.com
VFT14AS Series
Micro-miniature,
Evacuated CXO
Specifications:
Parameter
Symb
Absolute Maximum Ratings
Input Break
Vcc
Down Voltage
Storage temper.
Ts
Control Voltage
Vc
Electrical
Frequency
F
Frequency stability
∆F/F
Aging
Allan Variance
SSB Phase Noise
Condition
Min
-0.5
-40
-1
4.8
vs. Temp.
vs. Supply
per day
per year
.1s to 10s
10 Hz
100 Hz
10 KHz
After 30 minutes
worst direction
10.000
±50
1
5E-10
1E-7
1E-11
-120
-145
-160
Typ
Max
7.0
85
6
180
5
Unit
V
°C
V
MHz
ppb
ppb/V
Note
See chart below
after 30 days
dBc/Hz
Deteriorates by
20LogN for
higher freq
4.75
5.0
steady state, 25°C
25/35
steady state, -30°C
50/80
start-up current
150/150
Load
10KOhm//15pF
Warm-up time
to 0.1ppm accuracy
15
25
s
τ
Output Waveform
3.3V HCMOS/TTL compatible
Tristate Control
Logic “high” or floating – active; logic “low” – infinite impedance
Control voltage
Vc
0
4.1
V
Pull range
from nominal F
±0.5
±1
ppm
Deviation slope
Monotonic, posit
0.4
ppm/V
Setability
Vc0
@25°C, Fnom.
1.0
2.0
3.0
V
Environmental and Mechanical
Operating temp. range
-30°C to 70°C Standard, Other options – see chart below
Mechanical Shock
Per MIL-STD-202, 30G, 11ms
Vibration
Per MIL-STD-202, 5G to 2000 Hz
Soldering Conditions
Leads Temperature 260°C, for 10s, Max
Hermetic Seal
Leak rate less than 1x10-8 atm.ccm/s of helium, TO-8 only
Electrical Connections
Pin Out
Pin 1- Vc; Pin 7- Case, GND; Pin8 – Output; Pin 14 - Vcc
Retrace
G-sensitivity
Input Voltage
Input Current
Vcc
Icc
±20
±1.0
5.25
35/45
ppb
ppb/G
V
mA
3.3V±5% optional
5V/3.3 supply
35s at 3.3V supply
Sine wave available
Creating a Part Number
VFT14AS
Temperature Range
Code
A
B
C
D
E
F
Specification
0°C to 50°C
-10°C to 60°C
0°C to 70°C
-20°C to 70°C
-30°C to 70°C
-40°C to 85°C
FREQUENCY, MHz
S for sinewave
Temperature Stability
Code
17
58
28
18
59
YZ
Specification
1x10
-7
5x10
-8
2x10
-8
1x10
-8
5x10
-9
Yx10
-Z
Aging
Code
L
S
Specification
1x10
-9
/Day
5x10
-10
/Day
Supply Voltage
Code
5
3
Specification
5V ± 5%
3.3V ± 5%
Rev 12/05
Not all combinations are available.
Consult Factory.
75 South Street, Hopkinton, MA 01748
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800-982-5737
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508-435-6831
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FAX 508 435-5289
•
www.valpeyfisher.com
All parameters for 10 MHz
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