CX MINIATURE CRYSTALS
10kHz
to 600kHz
MINIATURE QUARTZ CRYSTAL
FOR SERIES OSCILLATORS
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
CX-1H-03
Page
1 of 2
General Description
The CX-1H quartz crystal is a high quality tuning fork resonator
designed for use in Series (two cascaded inverters) oscillators. The
CX-1H 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
Specification
0.7
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.
1.5
µ
W max. @ 10~24.9kHz
3.0
µ
W max. @ 25~600kHz
Figure 4
-0.035ppm/°C
±5ppm max.
1,000g 1ms, ½ sine
20g rms 10 - 2,000Hz
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
Lead to Package temp. not to
exceed 175°C
Glass lid to package seal rim
temp. not to exceed 210°C
7.6
8.1
Motional Capacitance (C
):
Quality Factor (Q):
2.0
3.8
3.8
Outline and Dimensions
Shunt Capacitance (C
):
Drive Level:
Turning Point (T
)**:
Temperature Coefficient (k):
Ageing, first year:
Shock, survival***:
Vibration, survival***:
Operating Temperature:
Storage Temperature:
Process Temperature:
Equivalent Circuit
L
1
R
1
1
C
1
C
0
2
L
1
Motional Inductance
C
1
Motional Capacitance C
0
Shunt Capacitance
R
1
Motional Resistance
Specifications are typical at 25°C unless otherwise indicated.
*
Closer calibration available
**
Other turning point available
*** Higher shock and vibration available
Conventional Series Oscillator Circuit
CX-1H Crystal Calibration Tolerance at 25°C
Calibration
Frequency Range (kHz)
10~74.9
75~169.9
170~249.9
250~600
A
Oscillator
Buffer
±0.003%
±0.01%
±0.1%
±0.005%
±0.01%
±0.1%
±0.01%
±0.02%
±0.2%
±0.02%
±0.05%
±0.5%
B
C
CX-1H Crystal
CX MINIATURE CRYSTALS
10kHz
to 600kHz
MINIATURE QUARTZ CRYSTAL
FOR SERIES OSCILLATORS
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
CX-1H-03
Page
2 of 2
Package Handling
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.
The crystals may be wave soldered, taking proper precautions 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°C, and glass lid to package seal rim temperature
should not exceed 210°C. Should the seal rim temperature exceed
these limits the package may lose its hermeticity. Loss of
hermeticity results in a decrease of frequency and increase in
motional resistance.
Figure 2 - CX-1H Typical Motional Capacitance (C1)
5
C1
(fF)
2
1.0
0.5
10
20
50
100 200
600
Frequency (kHz)
Figure 3 - CX-1H Typical Quality Factor (Q)
50
20
10
in '000s
Figure 1 - CX-1H Typical Motional Resistance (R1)
1000
500
5
2
10
20
50
100
200
600
200
R1
(k
100
Frequency (kH
z)
9
)
50
Figure 4 - CX-1H Typical Turning Point Temp. (°C)
+80
+70
+60
+50
20
10
10
20
50
100 200
600
Frequency (kHz)
+40
To(°C) +30
+20
+ 10
0
- 10
-20
10
Packaging
CX-1H-03 - Bulk Pack (Standard)
Tray Pack (Optional)
20
50
100 200
600
Frequency (kHz)
f-fo k(T-To)
=
fo
Order Code
Side leads
Frequency
CX-1H
-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
@ 25°C
(A)
*For other
calibrations (B)
(C)
insert value
in ppm
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