Space OCXO Plus
Space Qualified OCXO Plus – Oven Controlled Crystal Oscillator,
General Specification (rev1)
December, 5th 2007
Performance characteristics
Electrical Parameters
Frequency output
Unit
Minimum
Typical
10
Maximum
Nominal frequency range
Output level (50 Ω load)
Harmonics level
MHz
dBm
dBc
dBc
5
5
40
8
– 40
– 80
Spurious (offset > 50 Hz)
Phase noise in static conditions @ 10 MHz
@ 1 Hz offset
ppb
ppb
ppb
ppb
ppb
– 110
– 135
– 145
– 150
– 155
@ 10 Hz offset
@ 100 Hz offset
@ 1 kHz offset
@ 10 kHz offset or greater
Allan variance
@ 0.1 s
ppb
ppb
ppb
0.002
0.002
0.01
@ 1 s
@ 10 s
Free running mode (Vctrl pin NC)
Initial setting
ppb
ppb
ppb
ppb
ppb
ppb
10
±1
0.1
0.1
20
2
Stability vs. temperature
Stability vs. 5 % supply voltage variation
Stability vs. 10 % load variation
Aging over first year
Retrace
Electrical tuning (Vctrl pin)
Relative pulling frequency range
Input impedance
ppb
Ω
±200
10k
0
±500
8
Voltage range Option
VDC
Reference voltage (Vref pin)
Nominal value
Supply voltage (Vcc pin)
Voltage range
VDC
7.5
9.5
8.5
VDC
W
12
15.75
Supply power @ 25 °C under vacuum
Supply power @ warm up
2
7
W
6/6
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party without obtaining prior written permission from TEMEX.
TEMEX [ TEMEX ]
