Space Mini USO Space Qualified Mini USO – Ultra Stable Crystal Oscillator, General Specification (rev1) Features...........................................................................................2 Applications......................................................................................2 Environmental conditions .................................................................2 Mechanical characteristics ...............................................................3 Performance characteristics.............................................................4 Space Mini USO Space Qualified Mini USO - Ultra Stable Crystal Oscillator, General Specification (rev1) February 5th, 2008 Features • • • • • • • • • • • • • • Case type (s) : 70x70 height 50mm Frequency range : 5 – 12 MHz Temperature Range : from – 20° to + 70°C Frequency stability vs. temperature range from +/- 0.05ppb under vacuum Short term stability : 5.10-13 at 1s-100s Frequency Control Range : depending on spec Ageing per year : +/- 10 ppb first year Output wave form : sine 50 Ohms Output level : 5 to 10 dBm Supply Voltage : +12V or +15V Power consumption during Warm Up : 10W Power consumption steady state : 4W atmospheric pressure ; 2W under vacuum Radiation : TDR from 50kRad up to 100 kRad (Si) FM in accordance with MIL-PRF-55310 rev D Applications Recommended for space clock applications, navigation and positioning onboard systems. Very good short term stability (Allan variance). Environmental conditions Parameters Unit Minimum Typical Maximum Operating temperature range °C – 20 + 70 Storage temperature range °C – 55 + 125 Sine vibration 20g as per MIL-STD-202, Method 204, Condition D Random vibration 50 Grms ; 1,7g²/Hz from 100 Hz to 1000Hz Acceleration 25g Shocks (pyrotechnic shock) 1500g @ 1.5kHz Shocks (half sine) 1200g, 0.3ms Radiation Up to 100 kRad total dose 2/5 All information contained within this document is exclusive property of TEMEX, it is expressly forbidden to partially or totally reproduce or to disclose to a third party without obtaining prior written permission from TEMEX. Space Mini USO Space Qualified Mini USO - Ultra Stable Crystal Oscillator, General Specification (rev1) February 5th, 2008 Mechanical characteristics Figure 1 : Oscillator outline Pin number Name Function 1 Vctrl Voltage control for electrical tuning 2 – 3 – 4 - 12 NC 6 – 7 – 8 – 13 – 14 – 15 GND Electrical & Mechanical ground 9 – 10 - 5 Vcc Power supply 11 Vref Reference voltage SMA connector Fout Frequency output Table 1 : Pin description 3/5 All information contained within this document is exclusive property of TEMEX, it is expressly forbidden to partially or totally reproduce or to disclose to a third party without obtaining prior written permission from TEMEX. Space Mini USO Space Qualified Mini USO - Ultra Stable Crystal Oscillator, General Specification (rev1) February 5th, 2008 Performance characteristics Electrical Parameters Unit Minimum Typical Maximum Nominal frequency range MHz 5 12 Output level (50 Ω load) dBm 5 10 Harmonics level dBc – 40 Spurious (offset > 50 Hz) dBc – 80 @ 1 Hz offset dBc/Hz – 115 @ 10 Hz offset dBc/Hz – 140 @ 100 Hz offset dBc/Hz – 145 Frequency output (SMA Connector) Phase noise in static conditions @ 10 MHz @ 1 kHz offset dBc/Hz – 150 @ 10 kHz offset or greater dBc/Hz – 155 Allan variance @1s ppb 0.0005 @ 10 s ppb 0.0005 @ 100 s ppb 0.0005 Initial setting ppb 10 Stability vs. temperature ppb 0.1 Stability vs. 5 % supply voltage variation ppb 0.01 Stability vs. 10 % load variation ppb 0.01 Aging over first year ppb 20 Retrace ppb 1 Free running mode (Vctrl pin NC) Electrical tuning (Vctrl pin) Relative pulling frequency range Input impedance Voltage range ppb ±200 Ω 10k VDC 0 ±500 8 Reference voltage (Vref pin) Nominal value VDC 8 Supply voltage (Vcc pin) Voltage range VDC 11.4 12 15.75 Supply power @ 25 °C under vacuum W 2 Supply power @ warm up W 10 4/5 All information contained within this document is exclusive property of TEMEX, it is expressly forbidden to partially or totally reproduce or to disclose to a third party without obtaining prior written permission from TEMEX. Space Mini USO Space Qualified Mini USO - Ultra Stable Crystal Oscillator, General Specification (rev1) February 5th, 2008 Allan Variance USO TEMEX 2.0E-12 1.9E-12 1.8E-12 1.7E-12 1.6E-12 1.5E-12 1.4E-12 Allan Variance 1.3E-12 1.2E-12 1.1E-12 1.0E-12 9.0E-13 8.0E-13 7.0E-13 6.0E-13 5.0E-13 4.0E-13 3.0E-13 2.0E-13 1.0E-13 0.1 1 10 100 1000 10000 Time 10.23MHz 5MHz Spécification 5/5 All information contained within this document is exclusive property of TEMEX, it is expressly forbidden to partially or totally reproduce or to disclose to a third party without obtaining prior written permission from TEMEX.