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ECX-205

更新时间： 2024-11-11 06:55:55
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SMD TUNING FORK CRYSTAL

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ECX-205 数据手册

  
ECX-205/206 SMD TUNING FORK CRYSTAL  
Housing for the ECX-205/ 206 crystal is  
FEATURES  
made from the same thermoplastic that  
is industry standard for integrated  
circuits. This ruggedized molded  
package is excellent for SMD  
applications.  
•
Low profile  
•
•
Long term stability  
Industry standard footprint  
• Tape and Reel (2,000 pcs)  
PART NUMBERING GUIDE “EXAMPLE”  
FREQUENCY  
LOAD CAPACITANCE  
PACKAGE TYPE*  
ECS  
ECS  
–
–
.327  
.327  
–
–
12.5  
12.5  
–
–
11  
6
* Package Type examples (11= ECX-205, 6= ECX-206)  
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS  
PARAMETERS  
ECX-205/206  
32.768  
UNITS  
KHz  
pF  
NOMINAL FREQUENCY  
LOAD CAPACITANCE  
Fo  
CL  
12.5 Standard (6.0 Optional)  
1.0 max.  
DRIVE LEVEL  
DL  
µW  
CALIBRATION TOLERANCE  
EQUIVALENT SERIES RESISTANCE  
TEMPERATURE COEFFICIENT  
OPERATING TEMPERATURE RANGE  
MAX. OPERATING TEMPERATURE RANGE  
Q FACTOR  
TURNOVER TEMPERATURE  
STORAGE TEMPERATURE RANGE  
INSULATION RESISTANCE  
SHUNT CAPACITANCE  
@ +25˚C  
R1  
±20  
50 max.  
-0.040 PPM/˚C2 max.  
-10 ~ +60  
PPM  
K Ω  
PPM/(∆C˚)  
˚C  
TOPR  
-40 ~ +85  
50,000 min.  
+25 ± 5  
-55 ~ +125  
min./ DC 100V  
°C  
Q
TO  
TSTG  
IR  
°C  
°C  
MΩ  
pF  
500M  
Ω
Co  
2.0 typical  
MOTIONAL CAPACITANCE  
AGING (FIRST YEAR)  
C1  
∆f/fo  
0.003 pF typical  
±3 PPM max. @ +25˚C  
pF  
PPM  
PACKAGE DIMENSIONS (mm)  
10.41  
2.29  
RECOMMENDED OSCILLATION  
PARABOLIC TEMPERATURE CURVE  
CIRCUIT  
T (˚C)  
Rf  
-20 -10  
0
10 20 30 40 50 60 70  
-10  
-20  
-30  
-40  
-50  
-60  
2.54  
0.51  
4.2  
Rd  
Figure 1) ECX-205/206 - Side and End views  
C1  
C2  
f/f (PPM)  
ELECTRICAL CHARACTERISTICS  
IC: TC 4069P, Rf: 10MΩ  
Rd: 330KΩ (As required)  
C1 = 22pF, C2 = 22pF  
To determine frequency stability, use parabolic  
curvature. For example: What is the stability at 45˚C?  
2.7  
2.7  
5.0  
1) Change in T (˚C) = 45 -25 = 20˚C  
2) Change in frequency = -0.04 PPM x (∆T)2  
= -0.04 PPM x (20)2  
Figure 2) ECX-205/206 Land Pattern- Top view  
VDD = 3.0V  
= -16.0 PPM  
In this circuit, low drive level with a maximum of  
1µW is recommended. If excessive drive is  
applied, irregular oscillation or quartz element  
fractures may occur.  
#4  
#1  
#3  
#2  
#4  
#1  
#3  
#2  
Figure 3) ECX-205 Pin Connection- Top view  
Figure 4) ECX-206 Pin Connection - Top view  
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM  
SMD CRYSTALS 12 SMD CRYSTALS  
1

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