Transko Electronics, Inc. 3981 E. Miraloma Ave. CA 92806 USA

Tel: 714-528-8080 Fax: 714-528-8017 Website: www.transko.com E-mail: sales@transko.com

Transko Electronics, Inc. 3981 E. Miraloma Ave. Anaheim, CA 92806 USA

Tel: 714-528-8000 Fax: 714-528-8017 Website: www.transko.com E-mail: sales@transko.com

RoHS

Compliant

TXCS Series

Rev. 2: Jan. 2015

COSPAS-SARSAT BEACONS CERAMIC SMD TCXO (7.0 x 5.0 x 2.0mm)

FEATURES



Designed for Cospas-Sarsat Beacon application



Frequency stability ±0.20ppm



LVCMOS or Clipped sinewave output

Transko Electronics, Inc reserves the right to make changes to the product (s), service (s), and specification (s) described herein without notice. See “Terms of Sale” for details on our website.

■ SPECIFICATION

MODEL

TXCS-H(x)

TXCS-P(x)

NOMINAL FREQUENCIES

10.000M, 12.688375M, 12.688656M, 12.688750M, 16.367M

FREQUENCY TOLERANCE @ 25°C

±0.5ppm max.

FREQUENCY

STABILITY

vs. TEMPERATURE RANGE

±0.2ppm max. reference to (FMAX + FMIN)/2 @ -20°C ~ 55°C

vs. LOAD

±0.1ppm max.

vs. SUPPLY VOLTAGE

±0.1ppm max.

vs. ALLAN VARIANCE (tau=100ms)

±1.0ppb max.

OPERATING TEMPERATURE RANGE

(x) = A: -20°C ~ 55°C or (x) = B: -40°C ~ 55°C

STORAGE TEMPERATURE RANGE

-

55°C ~ 125°C

SUPPLY VOLTAGE ±5%

3.3V

SUPPLY CURRENT

6.0mA max.

OUTPUT

LOGIC FAMILY

LVCMOS

Clipped Sine wave

LOAD

15pF*

10KΩ//10pF*

LEVEL

10% / 90% VCC

0.8Vp-p min.

SYMMETRY (DUTY CYCLE)

45% / 55%

-

RISE AND FALL TIME (Tr/Tf)

8.0mS max.

-

STAND-BY

VOLTAGE

ENABLE (VIH)

0.7 x VCC min.**

DISABLE (VIL)

0.3 x VCC max.

MEAN SLOPE

(dF/dt)

STEADY STATE CONDITIONS

±0.7ppb / minute max.

DURING AND 15MIN. AFTER VARIABLE

TEMP. CONDITION

±1.7ppb / minute max.

RESIDUAL dF FROM SLOPE

±1.0ppb max.

REFLOW SOLDERING

±1.0ppm max.

AGING

±1.0ppm max.

1ST YEAR

10 YEARS

±3.0ppm max.

PHASE NOISE

10Hz

-

90dBc/Hz

100Hz

-

115dBc/Hz

1kHz

-

127dBc/Hz

10kHz

-

137dBc/Hz

100kHz

-

143dBc/Hz

Unit : mm

Pin Configuration

10

NC

1,2,3,6,7 Do Not Connect

4

GND

5

RF Output

8

En/disable

9

Supply, Vcc

Note: Consult factory for details

1.0

1.4

1.2

1.4

1.8

1.3

6.0

2.54

260°C

150 ±5°

Pre-heaing

<10 Sec

<120 Sec

Soldering

■ PACKAGE DIMENSIONS

■ PACKAGE DIMENSIONS

Unit : mm

■ PACKAGE DIMENSIONS

*To achieve an optimal frequency stability, the circuit connected to TCXO must have the correct input capacitance that is specified by the load capacitance

**Oscillator and compensation circuits are active when output is disabled during tri-state The output is enabled with no connection on pin #9 Supply current is ~ 1mA when output is disabled

5

6

10

2.54

0.8

0.6

1

2

4

3

9

8

7

5.9

7.0±0.1