High Stability
Oven Controlled Crystal Oscillator
OX-171
OX-171
The OX-171 is a high-stability ovenized crystal oscillator in a 28 x 38 mm package, capable of aging rates of 0.06 ppb/day and
temperature stabilities of 1ppb over an industrial temperature range. Driven by an SC-cut crystal, the oscillator provides excellent
phase noise and Allan Deviation. The OX-171 is a member of the OX-17 oscillator series. Other oscillators in the series include the
OX-170 standard oscillator, OX-172 optimized for 1588 solutions, and the OX-174 and OX-175 low phase noise oscillators. 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
• SC-Cut resonator
• Temperature stability to 0.4 ppb
• Aging rate options to 0.06 ppb/day
• Frequency range 5 to 20 MHz
• Standard frequencies: 5, 10, 12.8, 20 MHz
Applications
• Holdover reference
• Test equipment
• Synthesizers
• Military communication equipment
• Digital switching
Performance Specifications
Frequency Stabilities
1
(Stabilities listed for 10 MHz. For stabilities above 10 MHz values may degrade. Please contact factory)
Parameter
vs. Operating Temperature
Range (referenced to +25°C)
Min
-0.4
-0.6
-0.8
-25
-0.5
-0.2
-1
-0.1
-0.06
-15
-10
-75
-10
Typical
Max
+0.4
+0.6
+0.8
+25
+0.5
+0.2
+1
+0.1
+0.06
+15
+10
+75
+10
5
Units
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
minutes
Condition
0 to +70°C
-20 to +70°C
-40 to +85°C
at time of shipment, nominal EFC
V
S
±5%
Load ±5%
after 24 hours operation
after 72 hours operation
after 7 days operation
after 72 hours operation
after 72 hours operation
to ±10ppb of final frequency (1 hour reading)
@ +25°C
For better stability refer to the MX-060, MX-041 or MX-042 datasheets.
Initial Tolerance
vs. Supply Voltage Change
vs. Load Change
vs. Aging / Day
vs. Aging / Day
vs. Aging/ Day
vs. Aging / 1
st
Year
vs. Aging / Year (following year)
vs. Aging/ 10 years
Retrace
2
Warm-up Time
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
Supply Voltage (Vs)
Parameter
Supply Voltage (Vs)
Min
3.135
4.75
11.4
Typical
3.3
5.0
12.0
Max
3.465
5.25
12.6
4
1.5
Units
VDC
VDC
VDC
Watts
Watts
Watts
Watts
Condition
Ordering code E
Ordering code D
Ordering code B , temp stability T and J only
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 [standard]
Load
Signal Level (Vol)
Signal Level (Vol)
Signal Level (Voh)
Signal Level (Voh)
Duty Cycle
Signal
Load
Output Power @3.3V
Output Power @ 5.0V,12 V
Harmonics
Subharmonics
Tuning range
Linearity
Tuning Slope
Input Impedance
Bandwidth Modulation
Control Voltage Range
150
0.0
0.0
0.0
1.4
2.0
2.5
2.8
4.0
5
100
±150
10
Positive
kOhm
Hz
VDC
VDC
VDC
with Vs=3.3V
with Vs=5.0V
with Vs=12.0V
+2
+5
50
+5
+8
+8
+11
-40
-40
±250
2.4
3.5
45
55
Sine Wave
Ω
dBm
dBm
dBc
dBc
ppb
%
frequencies >= 10 MHz
(fixed frequency option available)
%
15
0.4
0.5
VDC
1
HCMOS
pF
VDC
with Vs=3.3V and 15pF Load
with Vs=5.0V & 12V and 15pF Load
with Vs=3.3V and 15pF Load
with Vs=5.0V & 12V and 15pF Load
@ (Voh-Vol)/2
2
s
Frequency Tuning (EFC)
Reference Voltage Output (Vref )
the OX-171 can be configured with a reference voltage on pin 2. This configuration requires a custom part number, and may degrade
the stability of the part. Please contact the factory for ordering information.
Reference Voltage (Vref ) - when
specified for custom units.
2.75
3.92
4.9
2.8
4.0
5
2.85
4.08
5.1
VDC
VDC
VDC
with Vs = 3.3 VDC
with Vs = 5.0 VDC
with Vs =12 VDC
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
Min
Typical
Max
-95
-125
-140
-145
-145
5e-12
8e-12
1e-11
5e-11
Units
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Condition
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
1 s tau
10 s tau
100 s tau
1000 s tau
Phase noise
3
@ 10MHz
For lower phase noise, please review the OX-174 datasheet.
Allan Deviation
@ 10MHz
For oscillators with lower ADEV requirements. Please review the OX-174 datasheet.
For oscillators with TDEV and MTIE requirements. Please review the OX-172 datasheet.
g-sensitivity
1
ppb/g
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-043 series.
Weight
25
15.0
Output load
25
50
open
g
VDC
pF
Ohms
CMOS
Sine
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.
Absolute Maximum Ratings
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
Frequency vs temperature plot -
Blue line - measured data -
Red line - curve fit of data.
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”
0
14 max
Pin Length “L”
4.5 mm min
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
No Connect
Reference Voltage for custom models
Supply Voltage Input (Vs)
RF Output
Ground (Case)
Dimensions in mm
3
4
5
Surface mount
Package configuration B
Height “H”
1
20.3 max
Pin Length “L”
4.5 mm min
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
No Connect -
Reference Voltage for custom models
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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