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9400 Satellite Master Oscillators
Output Frequency:
5 MHz - 25 MHz
Power consumption:
2.6W @ 25 C
Radiation rated to:
>100 krad (Si)
Frequency Aging@5MHz:
5E-11/day, 1.5E-8/year
Temperature Range:
-25 C to +60 C
The Datum 9400 is a master oscillator that
produces a highly stable, low noise, refer-
ence frequency output.
The use of surface mount technology
allows for the greatest reduction in size
possible without compromise of perform-
ance or reliability. All discrete components
manufactured to military standards are
purchased from a military certified and
qualified vendor. The environmentally
rugged Datum 9400 features an SC-cut
quartz resonator and sustaining electron-
ics controlled at a precise temperature to
achieve temperature insensitive perform-
ance. The satellite master oscillator also
exhibits excellent short-term stability,
phase noise and aging characteristics.
Backed by an extensive oscillator legacy,
the Datum 9400 series meets the chal-
lenges of stringent specifications for fre-
quency control, even under the most
adverse environmental conditions.
These oscillators are suitable for direct
installation as a component in equipment
and systems as well as for use as a mas-
ter frequency standard, local oscillator
and timing base. The oscillator series
satisfies a range of applications such as:
Shipboard timing references
Satellite system's on board timing
and frequency standard
Land-mobile system frequency
reference
Receivers/transmitters/LO
HIGH REL/SP
ACE PRODUCTS
Caesium and Quar
t
z
Products
Datum
-TT&M
34 Tozer Road
Beverly, MA 01915-5510
Tel: +1-978-927-8220
Fax; +1-978-927-4099
USA Toll Free:
1-800-544-0233
Web:
www.datum.com
E-mail:
ttmsales@datum.com
Specifications subject to change without notice.
Specifications
9400 Satellite Master Oscillators
Output Level
(TTL Outputs Available): 7.0 dBm into 50
Electrical Frequency Control (EFC) Range: 4E-7 Typical
Short-Term Stability:
@5 MHz
1 second (Allan Deviation)
3E-12
10 second (Allan Deviation)
1E-12
Frequency Aging
@5 MHz
Per Day
5E-11
Per Year
1.5E-8
Phase Noise @ 5MHz
Offset Frequency
L (f)
1 Hz
-116 dBc/Hz
10 Hz
-140 dBc/Hz
100 Hz
-150 dBc/Hz
1 KHz
-157 dBc/Hz
10 KHz
-160 dBc/Hz
100 KHz
-160 dBc/Hz
Frequency vs. Temperature
4E-9
Harmonic Distortion
-40 dBc
Non-Harmonic Distortion
-90 dBc
Frequency Retrace
1E-8
(After up to 24 hrs. off & 1 hour on at 25C)
Input Voltage
Range
15 to 18 Vdc
Sensitivity (Ripple, Variation)
60 mVpp, +/-10%
Power
Steady State
3.6 Watts @25C
Vacuum
2.4 Watts @25C
Warm-Up Power
6 Watts
Warm-Up Time From +25 C:
15 minutes to 2E-8
Operating Temperature Range:
-25C to +60C
Storage Temp. (Non-operating):
-40C to +100C
Acceleration Sensitivity
@5 MHz:
Typical
4E-9 per g
Option 1
7E-10 per g
(worst case axis)
Random Vibration
20 grms
Radiation Rated
>100 krad (Si)
Mean Time Between Failure
>10 million hours
(MIL-HDBK-217E)
Physical
Size
1.49" x 1.86" x 3.6"
Weight 8.1
ounces
Volume
9.98 cu inches
Options
Lower Phase Noise Performance
Power conditioning
Mechanical Isolation Systems
Multiple outputs
Crystal Radiation Preconditioning
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