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.
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.
actual size
FEATURES
Low profile hermetically sealed ceramic package
Excellent aging characteristics
Available with glass or ceramic lid
High shock and vibration resistance
Custom designs available
Full military testing available
Designed and manufactured in the USA
PACKAGE DIMENSIONS
-02 End Lead
.094
(2.39)
-03 Side Lead
.260
(6.60)
.094
(2.39)
1
2
1
2
3
.260
(6.60)
.210
(5.33)
3
.205
(5.21)
.200
(5.08)
A
EQUIVALENT CIRCUIT
A
.050(1.27)
C
0
INCHES (mm)
-04 Side Lead
.260
(6.60)
.094
(2.39)
Notes:
1.Terminal 1 is electrically connected
internally to terminal 3.
2.Lead dimensions
Width: .013” (.33mm) Typical
Thickness: .007” (.18mm) Typical
3.A = Glass Lid .080 (2.03) max.
Ceramic Lid .095 (2.41) max.
1
L
1
C
1
R
1
2
3
1
2
R
1
Motional Resistance L
1
Motional Inductance
C
1
Motional Capacitance C
0
Shunt Capacitance
.210
(5.33)
.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.
10 MHz
Motional Resistance R
1
( )
Motional Capacitance C
1
(fF)
Quality Factor Q (k)
Shunt Capacitance Co (pF)
Calibration Tolerance*
60
2.8
95
1.4
A
B
C
Load Capacitance
Drive Level
Frequency-Temperature
Stability**
Aging, first year
Shock, survival***
Vibration, survival
Operating Temperature
+
_
+
_
+
_
32MHz
20
7.8
36
2.4
155.52 MHz
50
0.5
41
3.2
_
0.01% (
+
100ppm)
0.1%
1.0%
20 pF
(Unless specified by customer)
500 W MAX.
_
-10
O
C to +70
O
C from
+
10ppm
_
-40
O
C to +85
O
C from
+
20ppm
_
-55
O
C to +125
O
C from
+
30ppm
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
o
C,
glass lid to package seal rim temperature should
not exceed 210
o
C.
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
5ppm MAX.
3,000g, 0.2 msec., 1/2 sine
20g rms, 10-2,000 Hz random
-10
O
C to +70
O
C Commercial
-40
O
C to +85
O
C Industrial
-55
O
C to +125
O
C Military
-55
O
C to +125
O
C
See package handling
CX-2-Leaded -Tray Pack (Standard)
CONVENTIONAL CMOS
PIERCE OSCILLATOR CIRCUIT
Storage Temperature
Max Process Temperature
R
f
BUFFER
OSC
Freq (f
O
)
Contact factory for
design guidelines
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
C
S
R
A
C
G
CX-2
CX-1
C
D
HOW TO ORDER CX-2 LEADED CRYSTALS
CX-2
“S” if special or
custom design.
Blank if Std.
-03
32 MHz
(
25ppm
Calibration
Tolerance*
@25
O
C
(A)
(B)
(C)
/
25ppm
Frequency
Stability over
Temp. Range
/
50ppm
/
I
)
O.T.=3
RD
O.T. Mode C=Ceramic Lid Leads Frequency
Blank=Fundamental Blank=Glass Lid -02
Mode
-03
-04
Total Frequency Temp. Range:
Tolerance
C = Commercial
I = Industrial
M = Military
S = Specify
*Other calibrations fill in ppm.
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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