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CX-2 CRYSTAL
9.6 MHz to 160 MHz
TM
Miniature AT-Cut Crystal
Fundamental Mode: 9.6 MHz - 70 MHz
Third Overtone Mode: 70 MHz - 160 MHz
DESCRIPTION
The CX-2 AT-cut quartz crystal is a high quality AT-cut resonator.
actual size
The CX-2 is hermetically sealed in a rugged, miniature ceramic
package, and available in several lead configurations. The CX-2
crystal is manufactured using the STATEK-developed
photolithographic process, and was designed utilizing the
experience acquired by producing millions of crystals for industrial,
commercial, military and medical applications.
FEATURES
Low profile hermetically sealed ceramic package
Excellent aging characteristics
PACKAGE DIMENSIONS
Available with glass or ceramic lid
-02 End Lead
High shock and vibration resistance
-03 Side Lead
.260
(6.60)
.094
(2.39)
Custom designs available
1
.094
(2.39)
Full military testing available
2
Designed and manufactured in the USA
.260
(6.60)
1
.210
(5.33)
3
.200
(5.08)
.205
(5.21)
A
EQUIVALENT CIRCUIT
A
.050(1.27)
-04 Side Lead
C0
.260
(6.60)
INCHES (mm)
1
L1
C1
3
2
R1
.094
(2.39)
2
3
1
2
Notes:
R1 Motional Resistance L1 Motional Inductance
C1 Motional Capacitance C0 Shunt Capacitance
1.Terminal 1 is electrically connected
internally to terminal 3.
.210
(5.33)
2.Lead dimensions
Width: .013ā€ (.33mm) Typical
Thickness: .007ā€ (.18mm) Typical
3.A = Glass Lid .080 (2.03) max.
Ceramic Lid .095 (2.41) max.
.100
(2.54)
A
10140 - Rev C
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
SPECIFICATIONS
PACKAGE HANDLING
Specifications are typical at 25oC unless otherwise noted.
Specifications are subject to change without notice.
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 175oC,
glass lid to package seal rim temperature should
not exceed 210oC. 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.
10 MHz
32MHz
155.52 MHz
Motional Resistance R1 (V)
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 mW MAX.
Frequency-Temperature
Stability**
-10OC to +70OC from +_ 10ppm
-40OC to +85OC from +_ 20ppm
-55OC 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
-10OC to +70OC Commercial
-40OC to +85OC Industrial
-55OC to +125OC Military
PACKAGING
CX-2-Leaded -Tray Pack (Standard)
Storage Temperature
-55OC to +125OC
Max Process Temperature
See package handling
CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
Rf
BUFFER
Note: The characteristics of the frequency temperature stability follow that of AT
cut thickness-shear mode.
* Tighter tolerances available as low as
** Does not include calibration tolerance
*** Higher shock version available
+
_
5 ppm
AMPLIFIER
CS
CG
CX-2
CX-1
OSC
Freq (fO)
RA
Contact factory for
design guidelines
CD
HOW TO ORDER CX-2 LEADED CRYSTALS
CX-2
ā€œSā€ if special or
custom design.
Blank if Std.
-03
32 MHz
O.T.=3RD O.T. Mode C=Ceramic Lid Leads Frequency
Blank=Fundamental Blank=Glass Lid -02
Mode
-03
-04
*Other calibrations fill in ppm.
(
25ppm
Calibration
Tolerance*
@25OC
(A)
(B)
(C)
/
25ppm
Frequency
Stability over
Temp. Range
/
50ppm
/
I
)
Total Frequency Temp. Range:
Tolerance
C = Commercial
I = Industrial
M = Military
S = Specify
10140 - Rev C
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
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