STATEK CORPORATION 512 N. MAIN ST., ORANGE, CA 92868 714-639-7810 FAX: 714-997-1256 www.statek.com
10104 - Rev A
SPECIFICATIONS
Specifications are typical at 25
OC unless otherwise noted.
Specifications are subject to change without notice.
Frequency Range
18 kHz to 600 kHz
Functional Mode
Tuning Fork (Flexure)
Calibration Tolerance*
A, B or C
(see below)
Motional Resistance (R1)
See Figure 1
MAX.: 18-25 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)
1.8 pF MAX.
Drive Level
18-25 kHz 0.5
W MAX.
25-600 kHz 1.0
W MAX.
Turning Point (To)**
Figure 4
Temperature Coefficient (k) -0.035 ppm/
0C2
Aging, first year
5ppm MAX.
Shock***
1,500g peak, 0.3 msec., 1/2 sine
Vibration, survival***
10g rms, 20-2,000 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
260
OC for 20 sec.
* Tighter frequency calibration available.
** Other turning point available.
*** Higher shock and vibration available.
CX-3V Crystal Calibration Tolerance at 25OC
Frequency Range (kHz)
Calibration 18-74.9
75-169.9
170-249.9
250-600
A
0.003%
0.005%
0.01%
0.02%
B
0.01%
0.01%
0.02%
0.05%
C
0.1%
0.1%
0.2%
0.5%
*** Other calibration values available, consult factory.
Load Capacitance (CL), Used to Calibrate CX-3V
(other CL available)
Frequency Load
Frequency
Load
Range
Capacitance
Range
Capacitance
(kHz)
(pF)
(kHz)
(pF)
18-24.9
10
100.1-179.9
5
25-54.9
9
180-600
4
55-100.0
8
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
+
_
HOW TO ORDER CX-3V-SM CRYSTALS
CX-3V
-SM1
32.768 kHz
(
A
/
I
)
“S” if special
SM1 Frequency
Calibration
Temp. Range:
or custom
SM2
Tolerance*
C = Commercial
design.
SM3
@ 25
0C
I = Industrial
Blank if Std.
(A)
M = Military
(B)
S = Specify
(C)
*Other calibration fill in ppm.
Blank = Glass Lid
C=Ceramic Lid
TERMINATIONS
Designation
Termination
SM1
Gold Plated
SM2
Nickel, Solder Plated
SM3
Nickel, Solder Plated and Solder Dipped
PACKAGING
CX-3V-SM - Tray Pack (Standard)
-16mm tape, 7” or 13” reels (Optional)
Per EIA 481 (see data sheet 10109)
300
200
100
50
20
10
5
2
18
50
100
200
600
Frequency (kHz)
300
200
100
50
20
18
50
100
200
600
Frequency (kHz)
18
50
100
200
600
Frequency (kHz)
+80
+70
+60
+50
+40
+30
+20
+10
0
-10
-20
FIGURE 1
CX-3V TYPICAL MOTIONAL RESISTANCE (R
1)
FIGURE 2
CX-3V TYPICAL MOTIONAL CAPACITANCE (C
1)
FIGURE 3
CX-3V TYPICAL QUALITY FACTOR (Q)
FIGURE 4
CX-3V TYPICAL TURNING POINT TEMP. (T
0)
5
2
1.0
0.5
18
50
100
200
600
Frequency (kHz)
Note: Frequency (f) deviation from frequency (fo) @ turning point
= k(T-T )
O
2
f-f
f
O
O