Space Oven Controlled Crystal Oscillator
RK 409
10
-9
Stability class OCXO
For this product, full and detailed specifications can be delivered on request.
Specific request can be addressed to RAKON
info@rakon.fr
Product Description
This stable oscillator is designed for Space Clocks, Navigation and Positioning Systems and is
used in such applications as GPS receivers, digital cards, board calculators, down and up
converters, synthesizers.
-13
The AV (Allan Variance) variant of the RK409 has a short term stability of 6.10 at 1 s.
This frequency source is featured by remarkable overall frequency stability vs. temperature
range up to ± 0.5 ppb under vacuum and ± 20 ppb per year.
The RK409 is available with different packages, in a small format (50x50x30mm) and is
manufactured in accordance with MIL-PRF-55310 (Class 1, type 4 or type 6, level S).
Features
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Frequency range: 10 MHz to 40 MHz
-13
Allan Variance @ 1s: 6.10
Frequency stability vs. operating
temperature range: ± 0.5 ppb under
vacuum
Ageing: ± 150 ppb over 15 years at 10MHz
Consumption (vacuum/atm./warm up):
3/4/7 Watt
Supply Voltage: +12V or +15V
Output wave form: sine 50 Ohms
Weight:125g (GP variant)/170g (AV variant)
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Quality
Component selected as per ECSS-Q-ST-60C
Materials selected as per ECSS-Q-ST-70
Manufacturing in accordance with ECSS-Q-
ST-70-08C and ECSS-Q-ST-70-38C
Reliability: 125 FIT @ 25°C
Lifetime: 18 years
Rating/derating as per ECSS-Q-ST-11
Manufacturing in accordance with ECSS-Q-
ST-70-08C and ECSS-Q-ST-70-38C
Applications
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Transponders
GPS receivers
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Converters
Navigation
Heritage
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SPACEBUS 4000
SATCOM
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HTV
HIMAWARI
Specifications
1.
Environmental conditions
Parameters
Operating Temperature
Conditions/remarks
Option A
Option B
Option C
TSo
Min
-5
-20
-40
-40
Nom
25
25
25
Max
60
70
70
85
Unit
°C
°C
°C
°C
Switch-on Temperature
Non-Operating
Temperature
TNOp
-55
125
°C
Random Vibration
Level as per MIL-STD-202, Method 214, condition I-K (46.30 Grms)
Sine Vibration
Level as per MIL-STD-202, Method 214, condition D (20 G)
Mechanical shock as per MIL-STD-202, Method 213, Condition E (half sine with a
Shocks
peak acceleration of 1500g for duration of 0.5 msec)
Radiation
TID : 100 kRad, low dose rate (36 to 360 rad/h)
No SEL up to LET=60 MeV/mg/cm²
July, 27th 2012
Shortform, 51001182.110, Issue A2
1/7
Specifications subject to change without notice
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