Datenblatt

CX-2V CRYSTAL
16 kHz to 600 kHz
TM
Miniature Quartz Crystal for Pierce Oscillators
DESCRIPTION
The CX-2V quartz crystal is a high quality tuning fork
resonator for use in Pierce (single inverter) oscillators. The
CX-2V is hermetically sealed in a rugged, miniature ceramic
package, one-fourth the size of an eight-pin mini-DIP. The
CX-2V 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
Miniature tuning fork design
High shock resistance
Designed for low power applications
Compatible with hybrid or PC board packaging
Low aging
Full military testing available
PACKAGE DIMENSIONS
Ideal for battery operated applications
Designed and manufactured in the USA
-02 End Lead
PACKAGE HANDLING
.094
(2.39)
2
.260
(6.60)
1
.210
(5.33)
3
.200
(5.08)
.205
(5.21)
A
A
.050(1.27)
-04 Side Lead
.260
(6.60)
INCHES (mm)
1.Terminal 1 is electrically connected
internally to terminal 3.
R1
2
3
2
3
1
2
Notes:
C0
C1
1
.094
(2.39)
EQUIVALENT CIRCUIT
L1
.260
(6.60)
.094
(2.39)
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.
1
-03 Side Lead
.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
R1 Motional Resistance L1 Motional Inductance
C1 Motional Capacitance C0 Shunt Capacitance
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
10138 - Rev A
FIGURE 1
CX-2V TYPICAL MOTIONAL RESISTANCE (R1)
100
50
CX-2V Crystal Calibration Tolerance at 25OC
5
2
16
+
_
B
+
_
C
+
_
0.003%
+
_
0.01%
+
_
0.1%
+
_
0.005%
+
_
0.01%
+
_
0.1%
+
_
+
_
0.02%
0.02%
+
_
0.05%
+
_
0.2%
Frequency Load
Range
Capacitance
(kHz)
(pF)
Frequency
Range
(kHz)
16-24.9
25-54.9
55-100.0
100.1-179.9
180-600
10
9
8
1.0
0.5
16
5
4
100
200
600
FIGURE 3
CX-2V TYPICAL QUALITY FACTOR (Q)
300
200
100
50
16
50
100
200
600
Frequency (kHz)
FIGURE 4
CX-2V TYPICAL TURNING POINT TEMP. (T0)
O
Load
Capacitance
(pF)
50
Frequency (kHz)
0.5%
Load Capacitance (CL), Used to Calibrate CX-2V
(other CL available)
600
2
250-600
0.01%
200
5
20
170-249.9
100
FIGURE 2
CX-2V TYPICAL MOTIONAL CAPACITANCE (C1)
TO ( C)
A
75-169.9
50
Frequency (kHz)
Frequency Range (kHz)
Calibration 16-74.9
20
10
(in 1000's)
* Tighter frequency calibration available.
** Other turning point available.
*** Higher shock and vibration available.
300
200
R1(kV)
Specifications are typical at 25OC unless otherwise noted.
Specifications are subject to change without notice.
Frequency Range
16 kHz to 600 kHz
Functional Mode
Tuning Fork (Flexure)
Calibration Tolerance*
A, B or C
(see below)
See Figure 1
Motional Resistance (R1)
MAX.: 16-24.9 kHz, 2x Typ.
25-600 kHz, 2.5x Typ.
Motional Capacitance (C1) Figure 2
Quality Factor (Q)
Figure 3
Min. is 0.25x Typ.
Shunt Capacitance (C0)
2.0 pF MAX.
Drive Level
16-24.9 kHz 0.5 mW MAX.
25-600 kHz 1.0 mW MAX.
Turning Point (To )**
Figure 4
Temperature Coefficient (k) -0.035 ppm/0C2
Aging, first year
5ppm MAX.
Shock***
1,000g peak, 1msec., 1/2 sine
Vibration, survival***
10g rms, 20-2,000 Hz random
Operating Temperature
-10OC to +70OC Commercial
-40OC to +85OC Industrial
-55OC to +125OC Military
Storage Temperature
-55OC to +125OC
Max Process Temperature See package handling
C 1(fF)
SPECIFICATIONS
+80
+70
+60
+50
+40
+30
+20
+10
0
-10
-20
16
20
50
100
200
600
Frequency (kHz)
Note: Frequency (f) deviation from frequency (fo) @ turning point
HOW TO ORDER CX-2V LEADED CRYSTALS
CX-2V
-03
32.768 kHz
(
A
/
I
2
f-fO
= k(T-TO)
fO
)
PACKAGING
ā€œSā€ if special
or custom
design.
Blank if Std.
*Other calibration fill in ppm.
Leads
02
03
04
Frequency
Calibration
Tolerance*
@ 250C
(A)
(B)
(C)
Temp. Range:
C = Commercial
I = Industrial
M = Military
S = Specify
CX-2V-Leaded -Tray Pack (Standard)
STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
10138 - Rev A
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