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.
0.5
µ
W max. @ 10~24.9kHz
1.0
µ
W max. @ 25~600kHz
Figure 4
-0.035ppm/°C
2
±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
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
L
1
R
1
1
C
1
C
0
2
Storage Temperature:
Process Temperature:
L
1
Motional Inductance
C
1
Motional Capacitance C
0
Shunt Capacitance
R
1
Motional Resistance
Conventional HCMOS Pierce Oscillator Circuit
R
f
Amplifier
Specifications are typical at 25°C unless otherwise indicated.
*
Closer calibration available
**
Other turning point available
*** Higher shock and vibration available
CX-1V Crystal Calibration Tolerance at 25°C
Buffer
Osc.
Freq. (Fo)
Calibration
Frequency Range (kHz)
10~74.9
75~169.9
170~249.9
250~600
C
S
R
A
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%
C
1
CX-1
C
2
Load Capacitance (C
L
) 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 C
L
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
R
f
Amplifier
Figure 2 - CX-1V Typical Motional Capacitance (C
)
5
C1
(fF)
2
1.0
Buffer
0.5
C
S
R
A
Osc.
Freq. (Fo)
10
20
50
100 200
600
Frequency (kHz)
Figure 3 - CX-1V Typical Quality Factor (Q)
C
1
CX-1
C
2
300
200
Figure 1 - CX-1V Typical Motional Resistance (R
)
300
200
R1 100
(k
Ω
)
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 (f
0
) @ 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
@ 25°C
(A)
*For other
calibrations (B)
(C)
insert value
in ppm
