CX MINIATURE CRYSTALS
EUROQUARTZ
Telephone:
Fax:
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
Page
CX-1V-SM
10kHz ttoo 660000kkHHzz
1 of 2
Email:
Web:
MMIINNIIAATTUURREE SSMMDD CCRRYYSSTTAALL
FFOORR PPIIEERRCCEE OOSSCCIILLLLAATTOORRSS
Miniature tuning-fork design
High shock resistance
Designed for low-power applications
Compatible with hybrid or PC board packaging
Low ageing
Full military environmental testing available
Ideal for battery operated applications
General Description
The miniature CX-1V-SM quartz crystal is a high quality tuning-
fork resonator for use in Pierce (single inverter) oscillators. The CX-
1V-SM is hermetically sealed in a rugged, leadless ceramic
package. The crystal has been designed for surface-mounting on
printed circuit boards or hybrid circuits. The CX-1-SM crystal is
manufactured using a photo-lithographic process, yielding
consistently high quality production parts.
Specification
Frequency Range:
Calibration Tolerance*:
Motional Resistance (R ):
10kHz to 600kHz
A, B or C (see table)
Figure 1
D
Max.: 10 ~ 169.9kHz, 2x typ.
170~600kHz, 2.5x typ.
Figure 2
(TOP)
A
Motional Capacitance (C ):
Quality Factor (Q):
E
D
Figure 3
Min. is 0.25x typ.
2.0pF max.
B
C
E
Shunt Capacitance (C ):
Drive Level:
10~24.98kHz 1.5µW max.
25~600kHz 1.0µW max.
Figure 4
Outline
Turning Point (T )**:
Temperature Coefficient:
Ageing, first year:
-0.035ppm/°C
±5ppm max.
CX-1-SM Package Dimensions
Shock, survival***:
Vibration, survival***:
Operating Temperature:
1000g 1ms, ½ sine
20g rms, 10-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
Typical
(mm)
Maximum
(mm)
Dimension
A
B
8.00
3.56
-
8.38
3.94
Storage Temperature:
Process Temperature:
260°C for 20 seconds
C
D
E
see below
1.40
Specifications are typical at 25°C unless otherwise indicated.
1.14
1.52
*
**
***
Tighter frequency calibration available
Other turning point available
Higher shock and vibration version available
1.78
Dimension
“C”
Glass Lid
(mm max.)
Ceramic Lid
(mm max.)
SM1
SM2
SM3
1.65
1.70
1.78
1.78
1.83
1.90
CX-1V-SM Crystal Calibration Tolerance at 25°C
Frequency Range (kHz)
Calibration
10~74.9
250~600
75~169.9 170~249.9
A
B
±0.003% ±0.005%
±0.01%
±0.02%
±0.2%
±0.02%
±0.05%
±0.5%
Equivalent Circuit
±0.01%
±0.1%
±0.01%
±0.1%
C
L1
R1
C1
C0
1
2
Solder Pad Layout
1.78
4.06
6.86
R1 Motional Resistance L1
Motional Inductance
C0
Shunt Capacitance
C1
Motional Capacitance
STATEK [ STATEK CORPORATION ]
