VEM42T3-16.384-2.5/-20+70 datasheet, PDF

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VEM42T3-16.384-2.5/-20+70: DescriptionHCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN; CategoryPassive components oscillator; File Size160KB，1 Pages; ManufacturerEuroquartz; Websitehttp://www.euroquartz.co.uk/

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VEM42T3-16.384-2.5/-20+70 Overview

HCMOS Output Clock Oscillator, 16.384MHz Nom, SMD, 4 PIN

VEM42T3-16.384-2.5/-20+70 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	Euroquartz
package instruction	SMD, 4 PIN
Reach Compliance Code	unknown
Ageing	1 PPM/FIRST YEAR
Maximum control voltage	2.5 V
Minimum control voltage	0.5 V
maximum descent time	10 ns
Frequency Adjustment - Mechanical	YES
Frequency offset/pull rate	12 ppm
frequency stability	2.5%
Installation features	SURFACE MOUNT
Nominal operating frequency	16.384 MHz
Maximum operating temperature	70 °C
Minimum operating temperature	-20 °C
Oscillator type	HCMOS
Output load	15 pF
physical size	11.4mm x 9.6mm x 2.5mm
longest rise time	10 ns
Nominal supply voltage	3 V
surface mount	YES
maximum symmetry	60/40 %
Base Number Matches	1

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EURO

QUARTZ

SMD package 11.4 x 9.6 x 2.5mm

Wide frequency range: 1.6MHz to 156MHz

Close tolerance stabilities from ±0.5ppm over 0° to +50°C

±1ppm over -40 to +85°C also available

EFC tuning ±5ppm to ±12ppm

Supply voltage 2.8 Volts to 5.0 Volts

DESCRIPTION

VEM42T series VCTCXOs are packaged in the industry-standard 11.4

x 9.6 x 2.5mm package. Close tolerances are available from

±0.5ppm over 0° to 50°C or ±1ppm over -40° to +85°C. The output

is controllable by EFC enabling output control of ±5ppm to ±12ppm.

The parts have a 0.01uF decoupling capacitor built-in.

SPECIFICATION

Product Series Code:

Frequency Range:

Output Waveform:

Standard Frequencies:

VEM42T

1.6MHz to 156.0MHz

Square wave (HCMOS)

9.6, 10.0, 12.80, 13.0, 14.40,

15.36, 16.384, 19.200,

19.44 and 19.68MHz.

(Partial

list)

See table

±1.0 ppm max. first year

±0.3 ppm max. ±5% change

±0.3 ppm max. ±10% change

±1ppm max. for one reflow

(Measured after 24 hours)

+2.8 VDC (Code ‘28’)

+3.0 VDC (Code ‘3’)

+3.3 VDC (Code ‘33’)

+5.0 VDC (Code ‘5’)

80% Vdd min.

10% Vdd max.

10ns max. (20%~80%)

50%±10% (at 50%Vdd)

10ms max.

30mA max. (Freq. dependent)

±5 to ±12ppm with Vcon =

+1.5V±1.0V. Note: All supply

versions have +1.5V Vcon.

Positive (inc. Vcon = inc. Freq.)

10% max.

15pF

See table

AC block, DC coupled

-50° to +100°C

VEM42T Series TCXO

Voltage-Controlled HCMOS 11.4 x 9.6 x 2.5mm SMD

VEM42T - OUTLINES AND DIMENSIONS

Operating Temperature Range:

Frequency Stability

vs. Ageing:

vs. Voltage Change:

vs. Load Change:

vs. Reflow:

Supply Voltage:

Output Voltage Levels

Logic ‘1’ HIGH:

Logic ‘0’ LOW:

Rise & Fall Times:

Duty Cycle (Symmetry):

Start-up Time:

Current Consumption:

E.F.C. Tuning:

VEM42T - TEST CIRCUIT

Slope Polarity:

Linearity:

Output Load:

SSB Phase Noise:

Output Format:

Storage Temperature:

FREQUENCY STABILITY OVER TEMPERATURE

Frequency Stability (ppm)

0 ~ +50

-10 ~ +60

Temperature

Range (°C)

-20 ~ +70

-30 ~ +75

-40 ~ +85

±0.5

ASK

±1.0

±1.5

±2.0

±2.5

VEM42T - PART NUMBERING PROCEDURE

Example:

VEM42T3-19.44-2.5/-30+75

= available, x = not available, ASK = call Technical Sales

= standard specification

PHASE NOISE

Offset

(Hz)

SSB Phase Noise

at 25°C

VEM42T

100MHz

(dBc/Hz)

100

10k

100k

-72

-110

-125

-132

-125

Series Description

Supply Voltage

28 = 2.8 VDC

3 = 3.0 VDC

33 = 3.3 VDC

5 = 5.0 VDC

Frequency

Stability over OTR (ppm)

Operating Temperature Range (OTR) (°C)

EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk

www.euroquartz.co.uk

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