VCXO

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RALTRON ELECTRONICS CORP.

§ 10651 N.W. 19

phone: (305) 593-6033

§ fax: (305) 594-3973 § e-mail: sales@raltron.com § WEB: http://www.raltron.com

VA2 SERIES: 9.3X8.5mm VCXO OSCILLATOR, HCMOS, +5.0 VDC

DESCRIPTION: A crystal controlled, high frequency, highly stable, voltage controlled oscillator, adhering to HCMOS

Standards. The output can be Tri-stated to facilitate testing or combined multipl e clocks. This oscillator is ideal for

today's automated assembly environments.

APPLICATIONS AND FEATURES:

Ø Common Frequencies: 16.384 MHz; 19.44 MHz; 27 MHz; 38.88 MHz; 51.84 MHz; 77.76 MHz

Ø +5.0 VDC HCMOS

Ø Frequency Range from 1 to 100 MHz

n ELECTRICAL PARAMETERS:

PARAMETER

SYMBOL

TEST CONDITIONS

*1

VALUE

UNIT

Nominal Frequency

fo

1.000 ~ 100.000

MHz

Supply Voltage

Vcc

+5.0

±5%

VDC

Supply Current

Is

35.0 MAX

mA

Output Logic Type

HCMOS

Load

Connected from output to ground

15

pF

Output Voltage Levels

Voh

Vol

0.9 * Vcc MIN

0.1 * Vcc MAX

VDC

VDC

Duty Cycle

DC

Measured at 50% of Vcc

40/60 to 60/40 or 45/55 to

55/45

%

Rise / Fall Time

tr / tf

Measured at 20/80% and 80/20% Vcc Levels

6.0 MAX

*2

ns

Jitter

J

RMS, Fj = 12 kHz…20 MHz

1 TYP

ps

Overall Frequency Stability

∆f/fc

Op. Temp., Aging, Load, Supply and Cal. Variations

*3

ppm

Control Voltage Range

VC

Positive slope; 10% linearity MAX

0 to +5.0

VDC

Settability

Vfo

+2.5

± 0.5

VDC

Absolute Pull Range

APR

Minimum guaranteed freq. pull over

∆f/fc

See Part Numbering

ppm

Input Impedance

Zin

10 MIN

k

Ω

Modulation Bandwidth

BW

-3 dB

10 MIN

kHz

Pin 1

Output Enabled

Output Disabled

En

Dis

High Voltage or No Connect

Ground

0.7

•Vcc MIN

0.3

•Vcc MAX

VDC

VDC

Absolute voltage range

Vcc(abs)

Non-Destructive

-0.5…+7.0

VDC

*1 Test Conditions Unless Stated Otherwise: Nominal Vcc, Nominal Load, +25

±3°C

*2 Frequency Dependent

*3 Not All APR’s Available With All Temperature Ranges—Please Consult Factory For Availability

n ENVIRONMENTAL PARAMETERS:

PARAMETER

SYMBOL

TESTCONDITIONS

*1

VALUE

UNIT

Operating temperature range

Ta

SEE PART NUMBER TABLE

°C

Storage temperature range

T(stg)

-55…+90

°C

n PART NUMBERING SYSTEM:

SERIES

SYMMETRY

TEMPERATURE

RANGE (°C)

APR

(ppml)

FREQUENCY

(MHz)

VA2: VCXO

with HCMOS

Output

A: 40/60 to 60/40%

T: 45/55 to 55/45%

R: 0…+50

S: 0…+70

U: -20…+70

W: 0….+85

V: -40…+85

F:

±32 ppm

H:

±50 ppm

K: ±70PPM

G:

±80 ppm

J:

±100 ppm

L: ±130 ppm

1.000…100.000

EXAMPLE: VA2ASH-38.880

VCXO Oscillator, 9.3X8.5mm Package, +5.0 VDC Supply Voltage, HCMOS Output, Standard Symmetry, 0…+70

°C Operating

Temperature Range,

±50 ppm APR, 38.880 MHz