Space Mini USO

Space Qualified Mini USO - Ultra Stable Crystal Oscillator,

General Specification (rev1)

February 5th, 2008

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.

4/5

Performance characteristics

Electrical Parameters

Unit

Minimum

Typical

Maximum

Frequency output (SMA Connector)

Nominal frequency range

MHz

5

12

Output level (50

Ω

Ω

Ω

Ω load)

dBm

5

10

Harmonics level

dBc

– 40

Spurious (offset > 50 Hz)

dBc

– 80

Phase noise in static conditions @ 10 MHz

@ 1 Hz offset

dBc/Hz

– 115

@ 10 Hz offset

dBc/Hz

– 140

@ 100 Hz offset

dBc/Hz

– 145

@ 1 kHz offset

dBc/Hz

– 150

@ 10 kHz offset or greater

dBc/Hz

– 155

Allan variance

@ 1 s

ppb

0.0005

@ 10 s

ppb

0.0005

@ 100 s

ppb

0.0005

Free running mode (Vctrl pin NC)

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

Electrical tuning (Vctrl pin)

Relative pulling frequency range

ppb

±200

±500

Input impedance

Ω

Ω

Ω

Ω

10k

Voltage range

0

8

Reference voltage (Vref pin)

Nominal value

8

Supply voltage (Vcc pin)

Voltage range

11.4

12

15.75

Supply power @ 25 °C under vacuum

W

2

Supply power @ warm up

W

10