Model 144
OCXO – Ultra Low Power, DIL-14
Features
8 to 120 MHz Frequency Range
Very short warm-up time
ECO-friendly, 150 mW power consumption
Low profile
Part Dimensions: 21.8 × 15.3 x 7.5 mm
Applications
Portable wireless communications
Synthesizers
Battery powered applications
Description
CTS Model 144 uses the internal heating resonator (IHR) technology with arrangement of the whole oven control
system together with the crystal plate inside the T08 vacuum holder to radically reduce the OCXO size, power
consumption, and warm-up time. In addition, the Model 144 offers excellent temperature stability, low phase
noise and aging rate despite its miniature size and extremely low power consumption. The oscillator has the
performance of high-end OCXOs which use conventional oven designs.
Ordering Information – Table 1
Model
144
Stability
V
Temperature
Range
G
Supply
Voltage
E
Aging
C
Mechanical
Shock
Frequency, MHz
16.384
Code
T
30
U
V
W
Stability
±50 ppb
±30 ppb
±20 ppb
±10 ppb
±5 ppb
Code
A
B
C
D
E
G
Temp
range
0 to 50°C
0 to 70°C
-10 to 60°C
-20 to 70°C
-30 to 70°C
-40 to 85°C
Code
D
E
Supply
5.0V ±5%
3.3V ±5%
Code
L
J
C
I
B
K
F
A
Per day
0.3 ppb
0.5 ppb
1 ppb
1.5 ppb
2 ppb
2.5 ppb
3 ppb
5 ppb
Per year
0.03 ppm
0.05 ppm
0.1 ppm
0.15 ppm
0.2 ppm
0.25 ppm
0.3 ppm
0.5 ppm
For
Frequencies
≤10MHz
≤20MHz
≤40MHz
≤50MHz
Code
blank
5
Mech
Shock
30g (std)
500g
≤120MHz
Available Frequency Stabilities over Operating Temperature Ranges
Stability
Order Temperature
T
30
U
V
W
Code
Range
50ppb 30ppb 20ppb 10ppb 5ppb
A
B
C
D
E
G
0 to 50°C
0 to 70°C
-10 to 60°C
-20 to 70°C
-30 to 70°C
-40 to 85°C
*
*
*
*
*
*
*
*
*
*
*
D
*
*
*
*
C
C
*
C
C
C
B
B
B
B
B
A
A
Stability Legend
* = Available for all frequencies
A = Available only for frequencies ≤10MHz
B = Available only for frequencies ≤30MHz
C = Available only for frequencies ≤50MHz
D = Available only for frequencies ≤100MHz
Part Number Example:
144-VGEC-16.384MHz
Rev G_0618
Page 1 of 4
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 144
OCXO – Ultra Low Power, DIL-14
Electrical Specifications
Parameter
Conditions & Remarks
Min
Typical
Max
Unit
Operating
Conditions
Operating Temperature Range
Supply Voltage
Power Consumption
Load
T
OP
V
CC
Warm-up
Steady State; T
A
= 25°C
10 MHz
100 MHz
-40
3.14
4.75
-
-
-
3.3
5.0
0.8
0.15
10 kΩ // 10pF
10 kΩ // 5pF
85
3.46
5.25
1.1
0.2
°C
Vdc
W
Frequency Stability
Frequency
Freq. vs Temperature
(See options - Table 1)
Freq. vs Supply Voltage
Freq. vs Time (Aging )
G-Sensitivity (Note 1)
Allan Variance
Warm-up time
F
NOM
-30°C to 70°C
V
CC
±5%
After 30 days of operation
Worst direction
1 sec
@ 25°C, to within ±0.1 ppm
referenced to the freq after 15
minutes on
8
-
-
-
-
-
-
-
-
-
±2
±0.3
±50
±1*
0.02
60
120
±5
-
-
-
-
-
90
MHz
ppb
ppb
ppb/day
ppb/year
ppb/G
ppb
sec
Output Parameters
HCMOS Output Levels
3.3V
5.0V
10-90%
10 MHz
100 MHz
V
OL
V
OH
-
-
2.4
3.8
-
-
45
-
-
-
-
-
-
50
None
Offset
10 MHz (typical)
-90
-120
-140
-160
-165
-165
100 MHz (typical)
-
-90
-120
-140
-160
-165
Rise/Fall Times
Duty Cycle
Subharmonics
0.4
0.4
-
-
10
3
55
Vdc
ns
%
@50% of output signal
Phase Noise
(Note 2)
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
dBc/Hz
* Note 1 – Lower G-Sensitivity performance is available. Consult factory.
** Note 2 – For additional phase noise options, consult factory.
Rev G_0618
Page 2 of 4
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 144
OCXO – Ultra Low Power, DIL-14
Electrical Specifications (Continued)
Parameter
Conditions & Remarks
Min
Typical
Max
Unit
Electronic Frequency Control - EFC
EFC Control Voltage
Frequency Tuning Range
Slope
Input Impedance
Linearity
Reference Output
V
REF
5V
3.3V
5V
3.3V
From F
NOM
sufficient for 10
year aging
Positive, monotonic
V
C
Z
IN
0.0
0.0
±0.3
-
10
-
4.1
2.7
-
-
±1
-
-
-
4.2
2.8
4.2
2.8
-
-
-
10
4.3
2.9
Kohms
%
Volts
Volts
ppm
Absolute Maximum Ratings
Supply Breakdown Voltage
Control Voltage
V
CC
V
C
-0.5
-1
-
-
V
CC
+ 20%
9
V
V
Mechanical and Environmental
Storage Temperature Range
Humidity
Mechanical Shock
Vibration
Soldering Conditions
Markings
-60°C to +90°°C
Non-condensing 95%
MIL-STD-202G, meth 213B, 30g, 11ms, 1/2 sine pulse - standard
MIL-STD-202G, meth 213B, 500g, 1ms, 1/2 sine pulse – option 5
MIL-STD-202G, meth 204D, 1.5mm DA 10 to 55Hz, 10G pk sine 55 to 2kHz - standard
MIL-STD-202G, meth 204D, 1.5mm DA 10 to 100Hz, 30G pk sine to 2kHz – option 5
Hand solder only – not reflow compatible. 260°C, 10 seconds.
Epoxy ink or laser engraved
Rev G_0618
Page 3 of 4
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
Model 144
OCXO – Ultra Low Power, DIL-14
Mechanical Specifications
Pin Assignments
Pin
1
2
7
8
14
Connection
V
C
V
REF
Ground
Output
V
CC
All dimensions: mm
This product is specified for use only in standard commercial applications. Supplier disclaims all express and implied warranties and liability in connection with any use of this
product in any non-commercial applications or in any application that may expose the product to conditions that are outside of the tolerances provided in its specification.
Rev G_0618
Page 4 of 4
©2015 CTS® Corporation. Information/product(s) subject to change. No warranty that product(s) will meet the stated specifications for customer specific applications or test
equipment. Visit www.ctscorp.com for list of applicable patent(s), more information, or to request a quote.
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