Datasheet > 9.000MHZEQAX-20-25-50-46

9.000MHZEQAX-20-25-50-46

更新时间： 2024-11-02 10:02:23

品牌	Logo	应用领域
EUROQUARTZ		/
页数	文件大小	规格书
1页	93K
描述
Oscillator,

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数据手册

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9.000MHZEQAX-20-25-50-46 数据手册

QUARTZ

STRATUM III OSCILLATORS

OUTLINES AND DIMENSIONS

EQAX-20

TCXO with STRATUM III

Long-term stability option

DESCRIPTION

The Euroquartz EQAX-20 TCXO conforms to IEC60679-1, Stratum 3,

providing a low-noise, highly-stable and reliable source of clock signals.

FEATURES

Compact, SMD package

Frequency range from 10Mhz to 20MHz

Operating temperature range, -20° to +70°C

Operable temperature -30° to +75°C

Supply Voltage 3.3 Volts

SPECIFICATION

Frequency Range:

Standard Frequencies:

Frequency Stability

Initial Tolerance:

9Mhz to 33Mhz

10, 12.8, 16.384, 19.44MHz

±1ppm @25°C

±2.5ppm -40°~+85°C

±1.5ppm -20°~+70°C

-0.8ppm 0°~+50°C

±0.2ppm

Vs. Temperature:

Pad

No.

Symbol

Function

PAD CONNECTIONS

ENVIRONMENTAL

Vs. Supply Voltage Var:

Vs. Load Change:

±0.2ppm

GND

RF OUT

Voltage Control

Ground

RF Output

Long Term Ageing (1st Year): ±1ppm (@40°C)

Long Term Stab. (15 Years):

Frequency Adjustment Range

Electronic Frequency Control

EFC Voltage Vc:

±4.6ppm

Supply Voltage

±5ppm

0.25~+4.5V (Option II = ‘50’

0.30~+3.0V (Option II = ‘33)

Positive

EFC Slope:

Test

IEC 61178-1

Clause . .

Test Conditions

IEC 60068

Part . .

EFC Input Impedance:

Absolute Pull Range:

RF Output

10k Ohms

Visual inspection,

Dimensions

Sealing tests

4.5

4.6

4.8.2

Enclosure styles as in

IEC 60122-3, if applic.

Gross Leak: Test Qc

Fine Leak: Test Qk

Test Ta (235±5°C),

method 1 Test Tb,

method 1A, 5s

Test Ea, 3x per axis

100g, 6ms 1/2sine

Test Eb, 4000 bumps/

axis, 40g, 6ms

Test Ed, procedure 1,

2 drops from 1m ht.

Test Fc, 30 min/axis,

10Hz-55Hz, 0.75mm;

55Hz -2kHz, 10g

Signal Waveform:

Load:

Symmetry (Duty Cycle):

Start-up Time:

HCMOS

15pF

60%/40%

4 ms

+5.0V±5%/+3.3V±5%

25mA maximum (@25°C)

-40°~+85°C

As drawing

2-17

2-20

Solderability,

Resistance to

soldering heat

Shock

4.8.3

Supply Voltage:

Current Consumption:

Operable Temperature Range:

Storage Temperature Range:

Enclosure:

2-27

2-29

2-32

2-6

4.8.8

4.8.6

4.8.9

4.8.7

Bump

Free fall

ORDERING CODE

Vibration,

Sinsoidal

To order, specify as follows:

Rapid change of

Temperature

2-14

4.8.5

Test Na, 10 cycles at

extremes of operating

temperature range.

Test Ba, 16 h at upper

temperature.

Test Db variant 1

severity b, 55°C/95%rh

Test Aa, 2h at lower

temperature indicated

by climatic category.

Sequence of 4.8.11,

4.8.12 and 4.8.13

Test Ca, 56 days

FREQUENCY-MODEL-OPTION I-OPTION II-OPTION III

Dry heat

2-2

4.8.11

4.8.12

4.8.13

EXAMPLE:

12.800MHz EQAX-20-25-50-46

Damp heat, cyclic

Cold

2-30

2-1

OPTION I - Tolerance vs Temperature

25 = ±2.5ppm -40°~+85°C

15 = ±1.5ppm -20°~+70°C

08 = 0.8ppm 0°~+50°C

OPTION II - EFC Voltage

50 = 0.25V~4.75V

33 = 0.30V~3.0V

OPTION III - Long Term Stability

46 = ±4.6ppm overall, 15 years

Climatic sequence

1-7

2-3

4.8.14

4.8.15

Damp heat, steady

state

Endurance tests,

- ageing

4.9.1

4.9.2

30 days @ 85°C

1kh, 2kh, 8kh, @85°C

- extended ageing

EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 1460 230000 Fax: +44 1460 230001 email: info@euroquartz.co.uk web: www.euroquartz.co.uk

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