The OX-204 is an Ultra Low Phase Noise Ovenized Crystal Oscillator with a noise floor as low as -175 dBc/Hz. Designed for applica-
tions that demand extremely low noise sources, including the reference oscillator for a phase-locked loop in the microwave spectrum.
Custom frequencies available upon request.
• -140 dBc/ Hz at 10 Hz offset
• -175 dBc/Hz at 10 kHz offset
• 10 MHZ standard, other frequencies available
Features
•
•
•
•
•
•
Military Radar
Instrumentation and Test Equipment
Synthesizers
Military Communication Equipment
DRO reference
Satellite Communications
Applications
Performance Specifications
Phase Noise Ordering Codes at 10 MHz
Frequency Offset (Hz)
1
10
100
1000
10,000
100,000
A
-95
-125
-150
-160
-170
-170
B
-100
-130
-155
-165
-170
-170
C (12V only) D (12V only) E (5V only)
-105
-135
-157
-167
-175
-175
-110
-140
-157
-165
-170
-170
-105
-135
-157
-167
-172
-173
Unit
Condition
dBc/Hz
Maximum values
All EFC settings
Frequency Stabilities at 10 MHz
Parameter
vs. operating temperature range
vs. Initial Tolerance
Allan Deviation
vs. supply voltage change
vs. load change
vs. aging / 1 day
vs. aging / 1
st
year
vs. aging / year
Warm up time
-2
-2
-0.5
-100
-30
Min
-10
-20
-100
Typical
Max
+10
+20
+100
5
+2
+2
+0.5
+100
+30
5
Unit
ppb
ppb
ppb
E-12
ppb
ppb
ppb
ppb
ppb
minutes
Condition
-20 to +70°C (referenced to +25°C)
-40 to +85°C (referenced to +25°C)
at time of shipment and 5V efc
0.1 to 1 second tau
±5% change
5% change in load
after 7 days of operation
after 7 days of operation
after first year of operation
to ±10 ppb of 2-hour frequency
@+25°C
Product Performance Data
Phase Noise
(dBc/Hz)
Offset (Hz)
Aging
(ppb)
Days
Frequency vs. Temperature
(ppb)
Temperature (
o
C)
Performance Specifications
Supply Voltage (Vs)
Parameter
Supply Voltage
Power Consumption
Reference Voltage
10
4.35
Min
11.4
4.75
Typical
12.0
5
Max
12.6
5.25
4.0
1.8
Unit
VDC
VDC
Watts
Watts
VDC
VDC
Condition
during warm-up
steady state @ +25°C
12 V version
5 V version
RF Output
Signal
Load
Output Power
Harmonics
Spurious
Tuning Range
Linearity
Tuning Slope
Control Voltage Range
Input Impedance
Modulation Bandwidth
g-sensitivity
Weight
150
0
0
100
Positive
10
4.35
kOhm
Hz
VDC
Vs=12V
Vs=5V
±400
+7.0
+4.0
50
+13.0
+7.0
-30
-80
±800
15
Sinewave
Ohms
dBm
dBm
dBc
dBc
ppb
%
50 Ohm load @ Vs=12V
50 Ohm load @ Vs=5V
50 Ohm load
50 Ohm load
enough for aging over 15 year lifetime
Frequency Tuning (EFC)
Additional Parameters
1.5
20
ppb/g
grams
Absolute Maximum Ratings
Parameter
Supply Voltage (Vs)
Output Load
Operable Temperature Range
-55
Min
Typical
Max
15
7
25
+95
Unit
V
V
Ohms
°C
Condition
12V version
5V version
Device will not sustain damage when
operated at temperatures between the
operating range and the operable range,
but will not be specification compliant
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
MIL-STD-202, Method 105, sea level to space
MIL-STD-202, Method 210, Condition A,B,C
MIL-STD-202, Method 11, Condition C (5 bends at 45
o
, 2 lbs)
1
6 (fully compliant) - no pure tin options available upon request, the device will be assigned a
customer part number , not orderable through ordering codes
-55
+125
°C
Outline Drawing
Dimensions in mm
Code
0
1
2
3
4
5
Height “H”
15.0
Pin Length “L” Min
6.2
RF Output
Pin Connections
Ground (Case)
Electronic Frequency Control
Input (EFC)/ No Connect
Reference Voltage
Supply Voltage Input (VS)
Dimensions in inches
Code
1
Height “H”
17.0 mm
Pin Length “L” Min
na
Pin Connections
1
4
7
8
14
RF Output
Ground (Case)
Electronic Frequency Control Input (EFC)
No Connect for Fixed frequency Oscillators
Reference Voltage
Supply Voltage Input (VS)
Ordering Information
OX - 204 0 - B E E - 208 0 - 10M0000000
Product Family
OX: OCXO
Package
25x25mm
Height
0: 15.00 mm tht
1: 17.00 mm smd
Supply Voltage
B: +12V
D:+5V
Frequency
Phase Noise and Frequency Control
0: No Tuning, phase noise code A
1: No Tuning, phase noise code B
2: No Tuning, phase noise code C
3: Frequency Tuning, phase noise code A
4: Frequency Tuning, phase noise code B
5: Frequency Tuning, phase noise code C
6: No Tuning, phase noise code D
7: No Tuning, phase noise code E
8: Frequency Tuning, phase noise code E
Stability Code
108: ±10ppb (Temp Code J only)
208: ±20ppb
Temperature Range
E: -40°C to +85°C
J: -20°C to +70°C
RF Output Code
E: Sinewave
Notes:
1. Contact factory for improved stabilities or additional product options including no pure tin options.
2. Certain codes available for sampling and short lead time requests. Please review website for codes.
3. 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).
4. Contact factory for other frequencies. Phase noise degrades for frequencies greater than 10 MHz.
5. Subject to technical modification.
6. Contact factory for availability.
For Additional Information, Please Contact
Microsemi Corporation
One Enterprise
Aliso Viejo, CA 92656
Tel: 1.800.713.4113
Fax: 1.949.215.4996
USA:
Disclaimer
Microsemi reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application. No rights
under any patent accompany the sale of any such product(s) or information.
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