ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM

SMD TCXO

SMD TCXO

FEATURES

• Highly stable output

• Voltage Control function

• 5 x 7 mm Footprint

• RoHSCompliant

TEMPERATURE COMPENSATED OSCILLATOR

The VC-TXO-30SM is a TCXO (Temperature

Compensated Crystal Oscillator) featuring very

tight stability over a wide temperature range.

The miniature SMD ceramic package measures

5 x 7 x 2.0 mm. The voltage control feature has

a frequency control range of ±5 ppm. The low

profile package is ideal for wireless communica-

tions applications.

7.0

± 0.2

#1

#2

#4

#3

2.0 Max.

3.68

1.4

1.4

0.9

3.0

0.9

PACKAGE DIMENSIONS (mm)

Figure 1) VC-TX0-30SM – Top, Side and Bottom views

Figure 2) Land Pattern

SERIES

FREQUENCY

STABILITY/TEMPERATURE OPTION

VC-TXO-30SM

–

128

–

B

STANDARD FREQUENCIES

12.60, 12.80, 13.00, 14.40, 14.85, 16.80

19.20, 19.44, 19.68 & 19.80 MHZ

Sample Part Number: VC-TXO-30SM-128-B, 128=12.8 MHz, B= ±2.0 PPM -20 +75˚C

Ultrasonic or Dip cleaning not to be used.

Preliminary outline drawing. Consult factory for latest revision. (Rev. 1/03).

OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS

VC-TXO-30SM

PARAMETERS

CONDITIONS

MIN

MAX

UNITS

FREQUENCY RANGE

12.600

19.800

MHz

FREQUENCY TOLERANCE

TYPICAL @+25˚ ±2˚C

-0.5

+0.5

PPM

OPER. TEMP. -10 ~ +60˚C

-2.0

+2.0

PPM

OPER. TEMP. -20 ~ +75˚C

-2.0

+2.0

PPM

OPER. TEMP. -20 ~ +75˚C

-2.5

+2.5

PPM

FREQ. STABILITY/TEMP.

OPER. TEMP. -30 ~ +80˚C

-2.5

+2.5

PPM

SUPPLY VOLTAGE CHANGE

+3V ±5%

-0.2

+0.2

PPM

LOAD CHANGE

10K

Ω ±10%//10 pF ±10%

-0.3

+0.3

PPM

AGING

First Year @ +25˚C

-1.0

+1.0

PPM

STORAGE TEMPERATURE

-40

+85

˚C

SUPPLY VOLTAGE

+3.0V DC Nominal

+2.85

+3.15

V DC

CURRENT CONSUMPTION

10K

Ω ±10%//10 pF ±10%

2.0

mA

OUTPUT VOLTAGE

Clipped Sine Wave (DC-Cut)

0.8

Vp-p

OUTPUT LOAD

10K

Ω ±10%//10 pF ±10%

FREQUENCY CONTROL

±5.0

PPM

CONTROL VOLTAGE

+1.5 VDC ± 1V Positive Slope

0.5

2.5

V

SSB PHASE NOISE

-120 dBc/Hz @ 1 KHz offset

HARMONIC DISTORTION

-3.0

dBc

(OPTION A)

(OPTION B)

(OPTION C)

(OPTION D)

1.6

1.3

4.3

5.1

56

VC-TX0-30SM PIN CONNECTIONS

#1

V CONTROL

#2

GND

#3

OUTPUT

#4