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CX-2 Datasheet(PDF) 2 Page - STATEK CORPORATION

Part No. CX-2
Description  Miniature AT-Cut Crystal
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Maker  STATEK [STATEK CORPORATION]
Homepage  http://www.statek.com
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STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
PACKAGE HANDLING
The CX crystal is hermetically sealed in a ceramic
package. Normal handling and soldering precautions for
small, low thermal mass parts are adequate when
installing or testing CX crystals. CX crystals may be wave
soldered, with proper precaution taken to avoid
desoldering the leads. A slow machine rate or too high a
pre-heat temperature or solder bath temperature can
damage the crystals. Lead to package solder
interface temperature should not exceed 175
oC,
glass lid to package seal rim temperature should
not exceed 210
oC. If the seal rim reaches temperatures
above the maximum specified, the package may lose its
hermeticity. Loss of hermeticity results in a frequency
decrease and motional resistance increase.
PACKAGING
CX-2-Leaded -Tray Pack (Standard)
10140 - Rev C
SPECIFICATIONS
Specifications are typical at 25oC unless otherwise noted.
Specifications are subject to change without notice.
10 MHz
32MHz
155.52 MHz
Motional Resistance R1 ( )60
20
50
Motional Capacitance C1 (fF)
2.8
7.8
0.5
Quality Factor Q (k)
95
36
41
Shunt Capacitance Co (pF) 1.4
2.4
3.2
Calibration Tolerance*
A
0.01% ( 100ppm)
B
0.1%
C
1.0%
Load Capacitance
20 pF (Unless specified by customer)
Drive Level
500
W MAX.
Frequency-Temperature
-10
OC to +70OC from
10ppm
Stability**
-40
OC to +85OC from
20ppm
-55
OC to +125OC from
30ppm
Aging, first year
5ppm MAX.
Shock, survival***
3,000g, 0.2 msec., 1/2 sine
Vibration, survival
20g rms, 10-2,000 Hz random
Operating Temperature
-10
OC to +70OC Commercial
-40
OC to +85OC Industrial
-55
OC to +125OC Military
Storage Temperature
-55
OC to +125OC
Max Process Temperature
See package handling
Note: The characteristics of the frequency temperature stability follow that of AT
cut thickness-shear mode.
* Tighter tolerances available as low as
5 ppm
** Does not include calibration tolerance
*** Higher shock version available
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HOW TO ORDER CX-2 LEADED CRYSTALS
CX-2
-03
32 MHz
(
25ppm
/
25ppm
/
50ppm
/
I
)
“S” if special or
O.T.=3
RD O.T. Mode
C=Ceramic Lid
Leads Frequency
Calibration
Frequency
Total Frequency Temp. Range:
custom design.
Blank=Fundamental Blank=Glass Lid
-02
Tolerance*
Stability over
Tolerance
C = Commercial
Blank if Std.
Mode
-03
@25
OC
Temp. Range
I = Industrial
-04
(A)
M = Military
(B)
S = Specify
(C)
*Other calibrations fill in ppm.
AMPLIFIER
BUFFER
C
G
C
D
R
A
CX-1
Contact factory for
design guidelines
OSC
Freq (f )
O
R
f
C
S
CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
CX-2




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