Oven Controlled Crystal Oscillator
OX-208
OX
08
-2
OX-208
The OX-208 is a high stability ovenized crystal oscillator in a 25 x 25 mm package, capable of aging rates of 0.15 ppb/day and
temperature stabilities of 0.8 ppb over an industrial temperature range. 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 resonatior
Temperature stability to 0.4 ppb
Aging rate 0.15 ppb/day
Frequency Range 5 to 20 MHz
Standard Frequencies: 5, 10, 20 MHz
•
•
•
•
•
Applications
Holdover reference
Test equipment
Synthesizers
Military communication equipment
Digital Switching
Performance Specifications
Frequency Stabilities
1
(Stabilities listed for 10 MHz unless otherwise noted, 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
-1
-2
-25
-0.5
-0.5
-0.15
-20
-15
-100
-0.3
-40
-30
-200
-5
Typical
Max
+0.4
+0.6
+0.8
1
2
+25
+0.5
+0.5
+0.15
+20
+15
+100
+0.3
+40
+30
+200
+5
5
Units
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
ppb
Condition
0 to +70°C (f=< 10 MHz)
-20 to +70°C (f=< 10 MHz)
-40 to +85°C (f=< 10 MHz)
0 to +70°C (f>10 MHz)
-40 to +85°C (f>10 MHz)
at time of shipment, nominal EFC
V
S
±5%
Load ±5%
after 72 hours operation (f=< 10 MHz)
after 72 hours operation (f=< 10 MHz)
after 72 hours operation (f=< 10 MHz)
after 72 hours operation (f> 10 MHz)
after 72 hours operation (f>10 MHz)
after 72 hours operation (f> 10 MHz)
For better stability refer to the MX-060 or MX-041 datasheets
Initial tolerance
vs. supply voltage change
vs. load change
vs. aging / day
vs. aging / year
vs. aging / year (following year)
vs. aging/ 10 years
vs. aging / day
vs. aging / year
vs. aging / year (following year)
vs. aging / day
retrace
2
Warm-up time
ppb
minutes
to ±10 ppb of final frequency (1 hour
reading) @ +25°C
Page 1 of 5
Performance Specifications
Supply Voltage (Vs)
Parameter
Supply Voltage (Vs)
Min
3.135
4.75
Typical
3.3
5.0
Max
3.465
5.25
4.5
2
Units
VDC
VDC
Watts
Watts
Watts
Watt
Condition
Ordering Code E
Ordering Code D
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
4.5
1
RF Output
start time
Signal [standard]
Load
Signal Level (Vol)
Signal Level (Voh)
Duty Cycle
Signal
Load
Output Power @3.3V
Output Power @ 5.0V
Harmonics
Tuning Range
Linearity
Tuning Slope
Input Impedance
Bandwidth Modulation
Control Voltage Range
150
0.0
0.0
1.4
2.0
2.8
4.0
100
±250
10
Positive
kOhm
Hz
VDC
VDC
with Vs=3.3V
with Vs=5.0V
2
5
50
5
8
8
11
-40
±500
2.5
3.6
45
55
Sine Wave
Ω
dBm
dBm
dBc
ppb
%
(fixed frequency option available)
%
15
0.3
0.4
1
HCMOS
pF
VDC
VDC
VDC
with Vs=3.3V and 15pF Load
with Vs=5.0V and 15pF Load
with Vs=3.3V and 15pF Load
with Vs=5.0V and 15pF Load
@ (Voh-Vol)/2
2
s
Frequency Tuning (EFC)
Reference Voltage Output (Vref )
The OX-2080 can be configured with a reference voltage. This configuration requires a custom part number. Please contact the factory
for ordering information.
Reference Voltage
2.75
3.92
2.8
4.0
2.85
4.08
VDC
VDC
with Vs = 3.3 VDC
with Vs = 5.0 VDC
Phase Noise
Parameter
Min
Typical
Max
-95
-125
-140
-155
-155
-89
-119
-134
-149
-155
Units
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Condition
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
Phase Noise
3
@ 10MHz
For lower phase please review the OX-174 datasheet.
Phase Noise
@ 20MHz
Page 2 of 5
Additional Parameters
Parameter
Allan deviation
g-sensitivity
1
Min
Typical
Max
5
8
1
5
Units
E-12
E-12
E-11
E-11
Condition
1 s tau
10 s tau
100 s tau
1000 s tau
ppb/g
@ 10MHz
g-sensitivity of 0.5 ppb/g available in this package size. Please contact factory for ordering information.
For g sensitivity <0.1 ppb/g please review the OX-043 series.
Weight
Supply Voltage (Vs)
Output Load
15
6.5
50
g
V
pF
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
with Vs=3.3 & 5.0 VDC
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
compliant with exemption 7c-i
-55
+125
°C
Frequency vs. Temperature
1.00
0.80
0.60
0.40
Delta freq (PPB)
0.20
0.00
-0.20
-0.40
-0.60
-0.80
-1.00
-60
-40
Frequency
-20
0
20
40
60
80
100
Temperature ( °C)
Page 3 of 5
Outline Drawing / Enclosure
Through hole
Package configuration A
Height
“H”
0
12.7
Pin Length “L”
4.5 mm min
Pin Connections
1
2
3
4
5
RF output
Ground (Case)
Electronic Frequency Control (EFC)
Reference Voltage option (requires custom
part number)
Supply Voltage (Vs)
Dimensions in mm
SMD
Package configuration 1
Height “H”
1
15.7
Pin Connections
1
2,5,6
3
4
7
Electronic Frequency Control Input (EFC)
No Connect for Fixed frequency Oscillators
No Connect
Supply Voltage Input (Vs)
RF Output
Ground (Case)
Page 4 of 5
Ordering Information
4
OX - 208 0 - D A E - 400 1 - 10M0000000
Product Family
OX: OCXO
Frequency
5M00000000
10M0000000
20M0000000
(others available on request)
Frequency Control
0:Fixed frequency
1: ±250 to ±500 ppb
Model
208
Height and Package
0: 12.7 mm, package A - THT
1: 15.7 mm, package B - SMD
Supply Voltage
D: 5V
E: 3.3V
RF Output Code
A: HCMOS
E: Sinewave
Stability Code
400: ± 0.4 ppb (f=<10 MHz, temp code T only )
600: ± 0.6 ppb (f=<10 MHz, temp code T or J only))
800: ±0.8ppb (f=<10 MHz)
109: ± 1ppb
209: ± 2 ppb
Temperature Range
E: -40°C to +85°C
J: -20°C to +70°C
T: 0°C to +70°C
Additional Ordering Options
Additional ordering options available include custom heights, custom aging rates, custom temperature ranges, custom
temperature stabilities, custom phase noise requirements, improved g-sensitivity, and oscillators with voltage reference output.
on pin 4. These modifications require a custom dash number - please contact the factory for additional information.
Design Tools
Vectron stocks the following items for small orders and prototype development:
OX-2080-DEE-8001-10M00000000
Vectron stocks the following evaluation board for this product:
OCXO Evaluation Board
Application Notes:
None
Notes:
1. Unless otherwise stated, all values are valid after warm-up time and refer to typical conditions for supply voltage, frequency
control voltage, load, and temperature (25°C).
2. Retrace defined as f1-fo where fo is the reading after the unit has been on power for 24 hours, and f1 is the frequency after 24
hours off followed by 60 minutes on.
3. Phase noise degrades with increasing output frequency.
4. Not all options and codes available at all frequencies.
Contact Information
100 Watts Street
Mt Holly Springs, PA 17065
Tel: 1.717.486.3411
Fax: 1.717.486.5920
USA:
Landstrasse
74924 Neckarbischofsheim
Germany
Tel: +49 (0) 7268.801.0
Fax: +49 (0) 7268.801.281
Europe:
Information contained in this publication regarding device applications and the like is provided only for your convenience and
may be superseded by updates. It is your reasonability to ensure that your application meets with your specifications. MICROCHIP
MAKES NO REPRESENTATION OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATU-
TORY OR OTHERWISE, RELATED TO THE INFORMATION INCLUDING, BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFOR-
MANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use.
Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend,
indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses
are conveyed, implicitly, or otherwise, under any Microchip intellectual property rights unless otherwise stated.
Trademarks
The Microchip and Vectron names and logos are registered trademarks of Microchip Technology Incorporated in the U.S.A. and
other countries.
Rev: 5-2-2019 jar
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