Model 148
OCXO - Ultra Miniature, Ultra Low Power
Shock Resistant
Features
8MHz to 100MHz frequency range
Industry’s smallest OCXO
Fast warm-up (to 45s)
Eco-friendly < 200mW power consumption
HCMOS output
Shock and vibration resistant construction
RoHS Status
Applications
Airborne and Ground Mobile
PLL Reference for Telecommunication Systems
Portable (Battery Operated ) Devices
Guidance Systems
Instrumentation / Test and Measurement
Description
The Model 148 uses an SC-cut crystal technology with arrangement of the whole oven system together with the
crystal oscillator inside the TO-8 vacuum holder to radically reduce the OCXO size, power consumption, and its
warm-up time. As a result, the Model 148 provides excellent temperature stability, low phase-noise and aging.
Special internal heating resonator (IHR) design enables extra-high shock resistance and durability - a distinctive
feature of this model.
Electrical Specifications
Parameter
Frequency
Range
Initial
Calibration
Frequency
Stability
Symbol
Condition
Typ
∆F/F
T
Supply
Voltage
1Hz
10Hz
100Hz
1kHz
10kHz
VCC
See “How to Order”
ppb
VCC ±5%
ppb
ppm
After 30 days.
See “How to Order”
+85
-40
Worst direction
SSB Phase
Noise
ppb
C
See “How to Order”
ppb/G
±2
Vs. Aging / Day
Vs. Aging / Year
Operating
Temperature
Range
G-sensitivity
For 10MHz oscillator
For 100MHz oscillator
1
Vs. Supply voltage
ppm
0.5
0.05
Vs. Operating temp.
C: -10°C to 60°C
MHz
5
∆F/F
Unit
100
8
Max
±0.1
±0.2
F
Min
-97
-127
-152
-162
-166
4.75
3.14
5.0
3.3
dBc/Hz
5.25
3.46
Note
For 10MHz oscillator
V
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevA0313
Specifications are subject to change without notice
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