SCOCXOT

Ultra Tight Stability

Oven Controlled Crystal Oscillator

12 V Power Supply

up to 20 MHz

Date:

September 2005

Revision No. : 3

Revision Date : 10-06

Page 1/2

In accordance with our policy of continuous development and improvement,

we reserve the right to modify the design or the specifications of our products without prior notice.

Headquarters:

Micro Crystal

Div. of ETA SA

Mühlestrasse 14

CH-2540 Grenchen

Switzerland

Tel.

Fax

Internet

Email

+41 32 655 82 82

+41 32 655 80 90

www.microcrystal.ch

sales@microcrystal.ch

FREQUENCY STABILITY

OVER:

OPERATING TEMP. RANGE :

see note 1

LONG TERM AGING 1ST YEAR: < ±0.3 ppm *

10 YEARS: < ±2.5 ppm *

SUPPLY VOLTAGE ±

±

±

±

0.5 V

< ±0.1 ppm

(on request, < ±0.025 ppm)

LOAD ±

±

±

±

10%:

< ±0.01 ppm

POWER SUPPLY

SUPPLY INPUT:

Vcc = 12 V ±0.5 V *

INPUT CURRENT :

< 25 mA @ +30 °C *

INPUT CURRENT :

< 40 mA @ -20 °C *

FREQUENCY CONTROL RANGE

CONTROL VOLTAGE:

see note 2

FREQUENCY DEVIATION:

> ±2.5 ppm *

RESPONSE SLOPE:

positive

OUTPUT

OUTPUT SIGNAL:

HC-MOS compatible

SYMMETRY:

40 (min.) /60 (max.) % @ Vcc / 2 *

RISE AND FALL TIME:

tr < 7ns

tf < 7 ns *

LEVEL „0“ AND „1“:

< 0.4 V

> 5V –0.5 V

FAN OUT (LOAD):

10 LS

ENVIRONMENT

OPERABLE TEMP. RANGE:

-40 to +85 °C

STORAGE TEMP. RANGE:

-65 to +125 °C

VIBRATION:

10 to 2000 Hz / 10 g

SHOCK

2000 g, 0.3 ms, ½ sine

PACKAGE:

DIL 14, 4 pins, GND to case

PACKAGE HEIGHT:

8 mm

(see packaging info)

WARM-UP

∆

∆

∆

∆

F/F:

within spec after 60s @ 30°C *

CURRENT:

< 250 mA during 10s

MISCELLANEOUS

SHORT TERM STABILITY:

< 1 E-10 0.1 s to 30 s

< 5 E-11 @ 1 s

PHASE NOISE (BW = 1Hz):

(typical, @ 10MHz in static

conditions)

1

Hz: - 60 dBc / Hz

10 Hz: -90 dBc / Hz

100 Hz: -120 dBc / Hz

1 kHz: -130 dBc / Hz

*

Customer’s specification on request

NOTE 1

SCOCXOT-AR1, AV5

TEMP. RANGE *

0 to +60 °C

STABILITY *

±

0.025 ppm

(0.05 ppm peak to peak)

SCOCXOT-BR1, BV5

TEMP. RANGE *

-20 to +70 °C

STABILITY *

±

0.05 ppm

(0.1 ppm peak to peak)

SCOCXOT-CR1, CV5

TEMP. RANGE *

-40 to +85 °C

STABILITY *

±

0.1 ppm

(0.2 ppm peak to peak)

NOTE 2

SCOCXOT-AR1, BR1, CR1

ADJUSTMENT

WITH RESISTOR

0 to 10 kΩ

(connected to ground)

INPUT IMPEDANCE

> -4.7 kΩ

SCOCXOT-AV5, BV5, CV5

ADJUSTMENT

WITH VOLTAGE

0.5 to 5 V

INPUT IMPEDANCE

> 47 kΩ

MARKING EXAMPLE

SCOCXOT-BV5

Type

Spec No.

20.000 MHz

01.25

Frequency

Date Code

12

(PIN 1)

Piece No.

ORDERING INFORMATION EXAMPLE

T

Oscillator Type

x x x

N°of

customer

spec.

SCOCXO = Low g sensitivity

Oven Controlled

Crystal Oscillator

Frequency Adjustment

V 5

-

B

Temperature Range

A =

0 to +60°C; +/-0.05ppm

B = -20 to +70°C: +/-0.1ppm

C = -40 to +85°C; +/-0.2ppm

X = custom spec.

R1 = external resistor

V5 = voltage 5V

Y

= custom spec.

O

C

O

X

20 MHz

Oscillator output

frequency

Oscillator Version

T = tight tolerance

C

S

STANDARD FREQUENCIES (MHz)

10.0000

12.8000

16.0000

16.3840

19.4400

20.0000