Space Oven Controlled Crystal Oscillator

RK 409

10

April, 2nd 2012

Specifications subject to change without notice

Shortform, 51001182.110, Issue A1

2 / 7

www.rakon.com

Parameters

Conditions/remarks

Min

Nom

Max

Unit

Option 12

11.4

12

12.6

V

Power supply

Option 15

14.25

15

15.75

V

Load Impedance

45

50

55

Ω

Reference voltage

6.6

6.9

7.2

V

Control voltage

Vc

0

Vref

V

3.1.

Option AV (Allan Variance)

Parameters

Conditions/Remarks

Min

Typ

Max

Unit

Nominal Frequency

10

40

MHz

Steady state input

current power

Vacuum @ -20°C

4

W

Warm up supply power

8

W

Initial frequency

accuracy

Frequency pulling

Option 2

± 10

ppb

Frequency adjustment

Positive slope

± 500

ppb

Option A

± 0.5

ppb

Option B

± 1

ppb

Frequency stability vs

temperature

Option C

± 5

ppb

Frequency variation vs.

supply voltage

Over Operating

Temperature

± 0.1

ppb

Frequency variation vs.

load

Over Operating

Temperature

± 0.1

ppb

Frequency variation vs

pressure

± 50

ppb

Over 1 year

± 20

ppb

Frequency ageing

(10 MHz)

Over 15 years

± 150

ppb

1s

6.E-13

Allan variance

10s

1.E-12

Frequency warm up

30

mn

Output waveform

Sine

Output level

EOL

2

10

dBm

Harmonics level

and subharmonics

-30

dBc

Non harmonics level

-85

dBc

1 Hz

-110

dBc/Hz

10 Hz

-135

dBc/Hz

100 Hz

-145

dBc/Hz

1kHz

-150

dBc/Hz

Phase noise

@ 10 MHz

10 kHz

-155

dBc/Hz