Ultra Low Noise
Oven Controlled Crystal Oscillator
OX-175
OX-175
The OX-175 is a low phase noise, high-frequency ovenized crystal oscillator in a 28 x 38 mm package. The oscillator has a noise
floor of -176dBc/Hz, and typical ADEV below 5E-12 for t=0.1 to 10 s. The OX-174 is a member of the OX-17 oscillator series. Other
oscillators in the series include the OX-170 standard oscillator, OX-171 high stability oscillator, OX-172 optimized for 1588 solutions,
and the OX-174 low phase noise oscillator. The Vectron design team will also help develop custom solutions where performance
optimization is required for specific applications. Please contact the factory for customization options.
Features
• Reflow Process Compatible
• Temperature Stability to 50 ppb
• Frequency Range 50 to 130 MHz
• Standard Frequencies: 50, 60, 80, 100,120 MHz
Applications
• Military Radar
• Instrumentation and Test Equipment
• Synthesizers
• Military Communication Equipment
• DRO references
• Satellite Communications
Performance Specifications
Phase Noise Ordering Codes at 100 MHz
Frequency Offset (Hz)
10
100
1000
10,000
100,000
A
-100
-130
-150
-165
-175
B
-102
-132
-156
-168
-175
C
-105
-135
-159
-170
-176
Unit
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Condition
Maximum values
All EFC settings
Parameter
Min
Typical
2.3
3.3
4
7
3.25
Max
5
10
10
50
10
Units
E-12
E-12
E-12
E-12
E-11
Condition
0.1 s tau
1 s tau
10 s tau
100 s tau
1000 s tau
Allan Deviation
@ 100MHz
For oscillators with TDEV and MTIE requirements please review the OX-172 datasheet.
Page 1 of 6
Vectron International • 267 Lowell Road, Unit 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Specifications
Frequency Stabilities
1
(Stabilities listed for 100 MHz, for stabilities above 100 MHz values may degrade, please contact factory)
Parameter
vs. Operating Temperature
Range (referenced to +25°C)
vs. Supply Voltage Change
vs. Load Change
vs. Aging / Day
vs. Aging / 1
st
Year
vs. Aging / 10 Years
Retrace
2
Warm-up Time
Min
-50
-100
-10
-10
-5
-200
-1.5
-100
Typical
Max
+50
+100
+10
+10
+5
+200
+1.5
+100
5
Units
ppb
ppb
ppb
ppb
ppb
ppb
ppm
ppb
minutes
Condition
-20 to +70°C
-40 to +85°C
V
S
±5%
Load ±5%
after 7 days operation
after 7days operation
after 7days operation
to ±100ppb of final frequency ( 1 hour
reading) @ +25°C
Supply Voltage (Vs)
Parameter
Min
11.4
Typical
12.0
Max
12.6
4.5
1.5
Units
VDC
Watts
Watts
Watts
Watts
Condition
during warm-up, all temperatures
steady state @ +25°C
steady state @ -40°C
steady state @ +85°C
time required to achieve 90% of amplitude
Power Consumption
3.3
0.5
RF Output
Start Time
Signal
Load
Output Power
Harmonics
Spurious
+7
50
+10
+13
-30
-80
1
Sine Wave
Ω
dBm
dBc
dBc
s
Frequency Tuning (EFC)
Parameter
Tuning range
Linearity
Tuning Slope
Input Impedance
Bandwidth Modulation
150
0.0
9.8
10
10
10.2
20
Min
±1.5
Typical
Max
±3.0
Units
ppm
%
Condition
Note - each oscillator is guaranteed to have
sufficient pull range for 10 years of operation
20
Positive
kΩ
Hz
VDC
VDC
Reference Voltage Output (Vref )
The OX-175 series can be configured without a voltage reference. Please contact the factory for ordering information.
Page 2 of 6
Vectron International • 267 Lowell Road, Unit 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Additional Parameters
Parameter
g-sensitivity
Min
Typical
Max
1
Units
ppb/g
Condition
g-sensitivity of 0.5 ppb/g available in this package size. Please contact factory for ordering information.
For g-sensitivity <0.5 ppb/g please review the OX-046 series.
Weight
25
g
Absolute Maximum Ratings
Supply Voltage (Vs)
Output Load
25
15.0
open
VDC
Ω
Operable temperature range implies the
device will continue to operate with no long-
term damage to unit; however, it will not be
specification compliant outside the operating
temperature range
Operable Temperature Range
-55
+95
°C
Environmental and Product Classification
Shock (Endurance)
Sine Vibration (Endurance)
Random Vibration (Endurance)
Humidity
Seal
Altitude
Resistance to Soldering Heat
Terminal Strength
Moisture Sensitive Level
RoHS
Storage Temperature Range
MIL-STD-202, Method 213, Condition J, 30g 11 ms
MIL-STD-202, Method 201 and 204, Condition A, except 5g to 500 Hz, 1 sweep each axis
MIL-STD-202, Method 214, Condition I-D
MIL-STD-202, Method 103, Condition B, 100% rh
MIL-STD-202, Method 112, Condition D, hermetic, washable
MIL-STD-202, Method 105, sea level to space
MIL-STD-202, Method 210, Condition A,B,C
MIL-STD-202, Method 211, Condition C (5 bends at 45
o
, 2 lbs)
1
6 (fully compliant)
-55
+125
°C
Page 3 of 6
Vectron International • 267 Lowell Road, Unit 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page 4 of 6
Vectron International • 267 Lowell Road, Unit 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Outline Drawing / Enclosure
Through hole
Package configuration A
Height “H”
Pin Length “L”
4.5 mm min
0
18.2 max
Additional height options available - contact
factory .
Note - lower height reduces stability
Pin Connections
1
2
Electronic Frequency Control Input (EFC)
No Connect for Fixed Frequency Oscillators
Reference Voltage (Vref )
Supply Voltage Input (Vs)
RF Output
Ground (Case)
3
4
5
Dimensions in mm
Surface mount
Package configuration B
Height
“H”
1
20.3 max
Pin Length “L”
n/a
Additional height options available - contact
factory .
Note - lower height reduces stability
Pin Connections
4,5,6,7,
11,12,13
1
2
3
8
9,10
No Connect
Electronic Frequency Control Input (EFC)
No Connect for Fixed Frequency Oscillators
Reference Voltage (Vref )
Supply Voltage Input (Vs)
RF Output
Ground (Case)
Page 5 of 6
Vectron International • 267 Lowell Road, Unit 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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