ECX-15X [ECS]
32.768 KHz SMD TUNING FORK CRYSTAL; 32.768千赫SMD音叉型晶体
| 型号： | ECX-15X |
| 厂家： | 
ECS, INC. |
| 描述： | 32.768 KHz SMD TUNING FORK CRYSTAL |
| 文件： | 总1页 (文件大小：167K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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
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