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ECS-.327-12.5-26X PDF预览

ECS-.327-12.5-26X

更新时间： 2024-11-05 06:55:43
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ECS 晶体
页数 文件大小 规格书
1页 167K
描述
32.768 KHz SMD TUNING FORK CRYSTAL

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ECS-.327-12.5-26X 数据手册

  
ECX-26X/ECX-15X 32.768 KHz SMD TUNING FORK CRYSTAL  
The miniature ECX-26X and the sub-miniature  
FEATURES  
ECX-15X are compact, cost effective SMD  
tuning fork crystals. The slimline molded  
package requires less space than other SMD  
tuning fork crystals.  
• Cost effective  
• Low profile  
• RoHS Compliant w/exemption for Pb in high temp solder  
• Tape & Reel packaging  
PART NUMBERING GUIDE “EXAMPLE”  
MANUFACTURER  
FREQUENCY (32.768 MHz)  
.327  
* Package type examples (26X=ECX-26X, 27X=ECX-15X) Sample Part Number: ECS-.327-12.5-26X  
LOAD CAPACITANCE*  
PACKAGE TYPE  
ECS  
–
–
12.5  
–
26X  
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS  
ECX-26X  
ECX-15X  
TYP  
UNITS  
PARAMETERS  
CONDITIONS  
MIN  
TYP  
MAX  
MIN  
MAX  
FREQUENCY RANGE  
FREQUENCY TOLERANCE  
LOAD CAPACITANCE  
F
O
32.768  
32.768  
KHz  
PPM  
pF  
∆f/fo  
±20  
±20  
Optional CL available  
12.5  
12.5  
DRIVE LEVEL  
EQUIV. SERIES RESISTANCE  
Q-FACTOR  
D
L
1.0  
50K  
1.0  
55K  
µW  
Ω
Q
˚C  
PM/˚C  
pF  
R
1
Q
70K  
+25  
-0.35  
0.9  
70K  
+25  
-0.35  
0.95  
380  
TURNOVER TEMPERATURE  
TEMPERATURE COEFFICIENT  
SHUNT CAPACITANCE  
CAPACITANCE RATIO  
OPERATING TEMP RANGE  
STORAGE TEMP RANGE  
INSULATION RESISTANCE  
AGING (FIRST YEAR)  
MOTION CAPACITANCE  
+20  
+30  
-0.04  
+20  
+30  
-0.04  
β
C
O
360  
T
T
OPR  
-20  
-40  
500M  
+70  
+125  
-20  
-40  
500M  
+70  
+125  
˚C  
˚C  
Ω
PPM  
PF  
STG  
@ 100V DC ±15V  
@ +25˚C ±3˚C  
±3  
±3  
C
1
0.0025  
+0.0025  
PACKAGE DIMENSIONS (mm)  
RECOMMENDED OSCILLATION  
PARABOLIC TEMPERATURE CURVE  
8.95 ±0.05  
CIRCUIT  
7.95 ±0.05  
#2  
#2  
#1  
Rf  
T (˚C)  
-20 -10  
0
10 20 30 40 50 60 70  
#3  
#3  
-10  
-20  
-30  
-40  
-50  
-60  
<Top View>  
#1  
<Top View>  
Rd  
#2  
#1  
C1  
C2  
#2  
#1  
#3  
#3  
f/f (PPM)  
0.75  
0.75  
0.75  
0.75  
ELECTRICAL CHARACTERISTICS  
IC: TC 4069P  
To determine frequency stability, use parabolic  
curvature. For example: What is the stability at 45˚C?  
Figure 3) ECX-15X Top, Side Bottom & End views  
Figure 1) ECX-26X Top, Side Bottom & End views  
Rf: 10MΩ  
1) Change in T (˚C) = 45 -25 = 20˚C  
Rd: 330KΩ (As required)  
C1 = 22pF, C2 = 22pF  
VDD = 3.0V  
2
2) Change in frequency = -0.04 PPM x (∆T)  
2
= -0.04 PPM x (20)  
= -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.  
0.85  
6.4  
0.85  
0.85  
7.4  
0.85  
Figure 4) ECX-15X Land Pattern  
Figure 2) ECX-26X Land Pattern  
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 • 913-782-7787 • 800-237-1041 • FAX 913-782-6991 • WWW.ECSXTAL.COM  
SMD CRYSTALS SMD CRYSTALS  
14  
1

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