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9.000MHZEQAX-20-15-50-46

更新时间: 2024-11-02 07:19:03
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EUROQUARTZ /
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描述
Oscillator,

9.000MHZEQAX-20-15-50-46 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  
1
2
4`  
5
VC  
GND  
RF OUT  
Vs  
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  
-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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