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
Symbol
F
∆F/F
Vs. Operating temp.
C: -10°C to 60°C
Vs. Supply voltage
Vs. Aging / Day
Vs. Aging / Year
Operating
Temperature
Range
G-sensitivity
SSB Phase
Noise
Supply
Voltage
T
Worst direction
1Hz
10Hz
100Hz
1kHz
10kHz
V
CC
4.75
3.14
-97
-127
-152
-162
-166
5.0
3.3
5.25
3.46
-40
±2
0.5
0.05
+85
1
Condition
Min
8
Typ
Max
100
±0.1
±0.2
5
Unit
MHz
ppm
ppb
ppb
ppb
ppm
C
ppb/G
For 10MHz oscillator
For 10MHz oscillator
For 100MHz oscillator
See “How to Order”
V
CC
±5%
After 30 days.
See “How to Order”
See “How to Order”
Note
Frequency
Stability
∆F/F
dBc/Hz
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
1
Model 148
OCXO - Ultra Miniature, Ultra Low Power
Shock Resistant
Electrical Specifications
Parameter
Power
Consumption
Warm-up Time
Symbol
P
τ
Condition
warm-up state
steady state, at +25C
to
∆F/F=1
E
-7
, @+25C,
V
CC
=5.0V
Min
Typ
1.0
0.23
Max
1.1
0.25
60
10kOhms // 15pF
HCMOS / TTL
Output
Levels
V
H
V
L
Rise / Fall time
Duty Cycle
Control Voltage
Frequency
Tuning Range
Reference Output
V
REF
V
CC
=5V
V
CC
=3.3V
V
C
V
CC
=5V
V
CC
=3.3V
T
R
/T
F
At 10MHz output
frequency
45
0
0
±0.5
4.1
2.7
±1.0
4.2
2.8
4.5
2.9
3.8
0.4
10
55
4.2
2.8
V
V
ns
%
V
ppm
V
Tuning slope -
positive
Monotonic
Unit
W
sec
Ref. to frequency
after 15mins.
10MHz output
frequency
Note
45
Environmental and Mechanical Conditions
Parameter
Storage Temperature
Humidity
Mechanical Shock
Vibration
Soldering Conditions
Markings
-60°C to +90°C
Non-condensing 95%
Per MIL-STD-202, 500G, half sine pulse, 11ms
Per MIL-STD-202, 30G swept sine 10 to 2000Hz
Hand solder only
Epoxy ink or laser engraved
Condition
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
2
Model 148
OCXO - Ultra Miniature, Ultra Low Power
Shock Resistant
How to Order
Model
148
-
Stability
W
Temperature Range
D
Supply Voltage
E
Aging
C
-
Frequency, MHz
10
Code
Package
148
Dimensions (mm)
14 x 14
A
B
C
D
Code
P
R
T
U
V
W
Specification
2x10
1x10
-7
-7
Specification
0°C to 50°C
0°C to 70°C
-10°C to 60°C
-20°C to 70°C
-30°C to 70°C
-40°C to 85°C
Code
L
J
C
I
K
B
F
A
Per day
0.3ppb
0.5ppb
1ppb
1.5ppb
2.5ppb
2ppb
3ppb
5ppb
Per year
0.03ppm
0.05ppm
0.1ppm
0.15ppm
0.25ppm
0.2ppm
0.3ppm
0.5ppm
For
Frequencies
Above
8MHz
Above
20MHz
Above
50MHz
Above
80MHz
E
G
5x10
-8
2x10
-8
1x10
-8
5x10
-9
Code
D
E
Specification
5V ± 5%
3.3V± 5%
Frequency stability vs. temperature range for
10 MHz OCXOs
Temperature vs.
Stability
0°C to 50°C
0°C to 70°C
-10°C to 60°C
-20°C to 70°C
-30°C to 70°C
-40°C to 85°C
Frequency stability vs. temperature range for
100 MHz OCXOs
5x10
-9
+
-
+
-
-
-
Temperature vs.
Stability
0°C to 50°C
0°C to 70°C
-10°C to 60°C
-20°C to 70°C
-30°C to 70°C
-40°C to 85°C
3x10
-8
+
+
+
+
+
+
2x10
-8
+
+
+
+
+
-
1x10
-8
+
+
+
+
+
-
1x10
-7
+
+
+
+
+
+
5x10
-8
+
+
+
+
+
-
3x10
-8
+
-
+
-
-
-
2x10
-8
+
-
-
-
-
-
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
3
Model 148
OCXO - Ultra Miniature, Ultra Low Power
Shock Resistant
Package
Model 148
HCMOS
Pin
1
2
4
5
8
Connection
V
CONTROL
V
REF.
GND
Output
V
CC
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
4
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