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CX MINIATURE CRYSTALS
10kHz to 600kHz MINIATURE QUARTZ CRYSTAL FOR PIERCE OSCILLATORS
EUROQUARTZ
Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk Web: www.euroquartz.co.uk
CX-1V-03
Page 1 of 2
General Description
The CX-1V quartz crystal is a high quality tuning fork resonator designed for use in Pierce (single inverter) oscillators. The CX-1V is hermetically sealed in a rugged, miniature ceramic package, a quarter the size of an eight pin dual-in-line package. The crystal is manufactured utilizing a photo-lithographic process, ensuring consistency and repeatability of electrical characteristics.

Miniature tuning-fork design High shock resistance Designed for low-power applications Compatible with hybrid packaging Low ageing Full military environmental testing available Ideal for battery powered applications
Specification
Frequency Range: Calibration Tolerance*: Motional Resistance (R): 10kHz to 600kHz A, B, or C (see table below) Figure 1 2x Typ. @ 10~169.9kHz 2.5x Typ. @170~600kHz Figure 2 Figure 3 (Minimum is 0.25x Typ.) 2.0pF max. 0.5W max. @ 10~24.9kHz 1.0W max. @ 25~600kHz Figure 4 -0.035ppm/C2 5ppm max. 1,000g 1ms, 1/2 sine 20g rms 10 - 2,000Hz -10~+70C (commercial) -40~+85C (industrial) -55~+125C (military) -55C~+125C Lead to Package temp. not to exceed 175C Glass lid to package seal rim temp. not to exceed 210C
0.7
7.6
8.1
Motional Capacitance (C): Quality Factor (Q): Shunt Capacitance (C): Drive Level: Turning Point (T)**: Temperature Coefficient (k): Ageing, first year: Shock, survival***: Vibration, survival***: Operating Temperature:
2.0
3.8
3.8
Outline and Dimensions
Equivalent Circuit
L1 R1
1
C1 C0
2
Storage Temperature: Process Temperature:
L 1 Motional Inductance C 1 Motional Capacitance C0 Shunt Capacitance
R 1 Motional Resistance
Conventional HCMOS Pierce Oscillator Circuit
Rf Amplifier
Specifications are typical at 25C unless otherwise indicated. * Closer calibration available ** Other turning point available *** Higher shock and vibration available
CX-1V Crystal Calibration Tolerance at 25C
Buffer Osc. Freq. (Fo)
Calibration
Frequency Range (kHz) 10~74.9 75~169.9 170~249.9 250~600
CS
RA
A B C
0.003% 0.01% 0.1%
0.005% 0.01% 0.1%
0.01% 0.02% 0.2%
0.02% 0.05% 0.5%
C1
CX-1
C2
Load Capacitance (CL) Used to Calibrate CX-1V)
Frequency Range (kHz) Load Cap. (pF) Frequency Range (kHz) Load Cap. (pF)
10~15.9 16~24.9 25~54.9
11 10 9
55~99.9 100~179.9 180~600
8 5 4
(Other CL available)
CX MINIATURE CRYSTALS
10kHz to 600kHz MINIATURE QUARTZ CRYSTAL FOR PIERCE OSCILLATORS
EUROQUARTZ
Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk Web: www.euroquartz.co.uk
CX-1V-03
Page 2 of 2
Circuit Design
Conventional HCMOS Pierce Oscillator Circuit
Rf Amplifier
Figure 2 - CX-1V Typical Motional Capacitance (C)
5
C1 (fF)
2 1.0
Buffer
0.5
CS
RA
Osc. Freq. (Fo)
10
20
50
100 200
600
Frequency (kHz)
Figure 3 - CX-1V Typical Quality Factor (Q)
C1 CX-1 C2
300 200
Figure 1 - CX-1V Typical Motional Resistance (R)
300 200 R1 100 (k ) 50
100
in '000s
50
20 10 50 100 200 600
Frequency (kH z)
20 10 5 2 10 50 100 200 600 Frequency (kHz)
Figure 4 - CX-1V Typical Turning Point Temp. (C)
+80 +70 +60 +50 +40 To(C) +30 +20 + 10 0
Packaging
CX-1V-03 - Bulk Pack (Standard) Tray Pack (Optional)
- 10 -20 10 20 50 100 200 600
Frequency (kHz)
Note: Frequency (f) deviation from frequency (f0) @ turning point
f-fo k(T-To) = fo
Order Code
Side leads Frequency
CX-1V
-03 32.768kHz (A / I)
Temperature Range: C = Commercial I = Industrial M = Military S = Specify
"S" if special Calibration or custom design Tolerance* Blank if standard @ 25C (A) *For other calibrations (B) (C) insert value in ppm

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