Micro Miniature OCXO

ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK

Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk

Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to

discontinue any product or make design changes we believe necessary.

Issue 2

ECM VFT8 Series

Parameter

VFT8

Frequency Range

4.80 to 50.0MHz

Frequency Stability

+/-100ppb max

5ppb max

vs Temp

vs Supply

Aging per Day

Per Year

5E-10

1E-7

After 30Days

Allan Variance

1E-11

0.1s to 10s

SSB Phase Noise

10Hz

100Hz

10kHz

-120dBc/Hz

-145dBc/Hz

-160dBc/Hz

Retrace

+/-20ppb max

After 30 mins

G-sensitivity

+/-1ppb/G max

Worst Direction

Input Voltage

5V +/-5%

12V Option

Input Current (Typ)

Steady state 25

Steady State -30

Start up Current

Vcc 5V

Vcc12V

25 mA

12 mA

70 mA

35 mA

100 mA

200 mA

35 / 20 max

Load

10K ohm //15pF

Warm-up Time

35s typ to 0.1ppm

20s Vcc 12V

Output Waveform

3.3V HCMOS /TTL Compatible

Control Voltage

0V to 4.1V

Pulling Range

+/-0.5ppm to +/-1ppm

from nominal

Deviation Slope

0.4ppm/V

monotonic positive

Setability

1.0V min 3.0V max

@ 25

§ Smallest OCXO Available

§ Extremely Low Power Consumption

§ Very Fast Warm-up

§ Low Phase Noise

§ Low Aging

§ Surface Mount Option (VFT8SM)

A

B

C

D

E

F

G

H

12.7

9.27

14.3

10.9

6.35

7.62

15.2

7.62

Dimensions in mm

Pin

1

2

3

4

5

6/7

8

Vc

Vref

Tristate

Case

Gnd

O/P

N/C

Vcc

Temperature

A=

0

B=

-10

C=

0

D=

-20

E=

-30

F=

-45

Stability

17=

1x10

-7

58=

5x10

-8

28=

2x10

-8

18=

1x10

-8

59=

5x10

-9

YZ

Yx10

-z

Aging

L=

1x10

S=

5x10

P=

2x10

Supply

5=

5V

2=

12V

Frequency

VFT8H A 17 L

2 10.0M