VEM38GT33-20.0K-1.0/0+50 datasheet, PDF

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VEM38GT33-20.0K-1.0/0+50: DescriptionHCMOS Output Clock Oscillator, 0.02MHz Nom, ROHS COMPLIANT, MINIATURE, CERAMIC, DIL-14/4; CategoryPassive components oscillator; File Size340KB，1 Pages; ManufacturerEuroquartz; Websitehttp://www.euroquartz.co.uk/; Environmental Compliance

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VEM38GT33-20.0K-1.0/0+50 Overview

HCMOS Output Clock Oscillator, 0.02MHz Nom, ROHS COMPLIANT, MINIATURE, CERAMIC, DIL-14/4

VEM38GT33-20.0K-1.0/0+50 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Reach Compliance Code	compliant
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	6 ppm
frequency stability	1%
Installation features	THROUGH HOLE MOUNT
Nominal operating frequency	0.02 MHz
Maximum operating temperature	50 °C
Minimum operating temperature
Oscillator type	HCMOS
Output load	15 pF
physical size	18.4mm x 11.7mm x 7.3mm
longest rise time	10 ns
Nominal supply voltage	3.3 V
surface mount	NO
maximum symmetry	55/45 %
Base Number Matches	1

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EURO

QUARTZ

Package pin outs compatible with 14 pin DIL

Frequency range: 20.0 to 50.0kHz; 32.768kHz

Supply voltage 3.3 or 5.0 Volts

Frequency stability from ±1ppm over -30 to +75°C

RoHS compliant

DESCRIPTION

EM38GT series TCXOs are packaged in a miniature 6 pad ceramic

SMD package. With squarewave (CMOS) output, tolerances are

available from ±1.0ppm over -30° to +75°C. The part has a 0.01mF

decoupling capacitor built in.

SPECIFICATION

Product Series Code

TCXO:

VCTCXO:

Frequency Range:

Output Waveform:

Initial Calibration Tolerance

Models with mech. trimmer:

Models without trimmer:

Operating Temperature Range:

Frequency Stability

vs. Ageing:

vs. Voltage Change:

vs. Load Change:

vs. Reflow:

Supply Voltage:

Output Logic Levels:

Rise and Fall Times:

Duty Cycle:

Start-up Time:

Current Consumption:

FREQUENCY STABILITY

Output Load:

Storage Temperature:

EM38GT

VEM38GT

32.768kHz Standard frequency

20.0kHz to 50.0kHz

Squarewave

<1.0ppm (at t. 25°±2°C)

<2.0ppm (at t. 25°±2°C)

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)

+3.3 or +5.0Volts

(Specify

when ordering)

Logic High: 90% Vdd min.

Logic Low: 10% Vdd max.

10ns max.

50%±5%

2ms typical, 5ms max.

See table below

15pF

-55~+125°C

EM38GT Series TCXO

HCMOS 14 pin DIL compatible, kHz Range

EM38GT - OUTLINES AND DIMENSIONS

VEM38GT VOLTAGE CONTROL SPECIFICATION

Control Voltage:

FREQUENCY STABILITY

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

Standard = +1.5±1.0Volts for all input

voltages.

(Contact technical sales if

+2.5±2.0 Volts is required.)

Frequency Deviation: ±6.0 ppm min.

Slope Polarity:

Positive

(increase of control voltage increases

output frequency.)

Input Impedance:

10k min.

Modulation Bandwidth: 3.0kHz min. measured at -3dB

Linearity:

10% max.

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

PART NUMBERING PROCEDURE

Example:

CURRENT CONSUMPTION

Frequency

32.768kHz

50kHz

+3.3 V

8.0mA

12mA

EM38GT33-32.768k-2.5/-30+75

Series Description

TCXO = EM38GT

VCTCXO = VEM38GT

Supply Voltage

33 = 3.3 VDC

5 = 5.0 VDC

Frequency (kHz)

Stability over OTR (±ppm)

Operating Temperature Range (OTR) (°C)

Lower and upper limits.

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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