EUROQUARTZ CX-1HOTHGSM332.768KB

CX MINIATURE CRYSTALS
CX-1H-SM
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
Page
10kHz to 600kHz
MINIATURE SMD CRYSTAL
FOR SERIES OSCILLATORS
1 of 2
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General Description
The miniature CX-1H-SM quartz crystal is a high quality tuningfork resonator for use in series (two cascaded inverters) oscillators.
The CX-1H-SM is hermetically sealed in a rugged, leadless
ceramic package. The crystal has been designed for surfacemounting 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.
(TOP)
D
Frequency Range:
Calibration Tolerance*:
Motional Resistance (R1):
E
D
Motional Capacitance (C1):
Quality Factor (Q):
C
E
Turning Point (T0)**:
Temperature Coefficient:
Ageing, first year:
Shock, survival***:
Vibration, survival***:
Operating Temperature:
CX-1-SM Package Dimensions
Typical
(mm)
Maximum
(mm)
A
8.00
8.38
B
3.56
3.94
C
-
see below
D
1.14
1.40
E
1.52
1.78
Glass Lid
(mm max.)
Storage Temperature:
Process Temperature:
Specifications are typical at 25°C unless otherwise indicated.
*
**
***
Ceramic Lid
(mm max.)
SM1
1.65
1.78
SM2
1.70
1.83
SM3
1.78
1.90
L1
C1
Tighter frequency calibration available
Other turning point available
Higher shock and vibration version available
CX-1H-SM Crystal Calibration Tolerance at 25°C
Calibration
Equivalent Circuit
1
10kHz to 600kHz
A, B or C (see table)
Figure 1
Max.: 10 ~ 169.9kHz, 2x typ.
170~600kHz, 2.5x typ.
Figure 2
Figure 3
Min. is 0.25x typ.
2.0pF max.
10~24.98kHz 1.5µW max.
25~600kHz 3.0µW max.
Figure 4
-0.035ppm/°C2
±5ppm max.
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
260°C for 20 seconds
Shunt Capacitance (C0):
Drive Level:
Outline
Dimension
ā€œCā€
Specification
A
B
Dimension
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
R1
C0
2
Frequency Range (kHz)
10~74.9
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%
Solder Pad Layout
1.78
L 1 Motional Inductance
C 1 Motional Capacitance C0 Shunt Capacitance
4.06
R 1 Motional Resistance
6.86
CX MINIATURE CRYSTALS
CX-1H-SM
EUROQUARTZ
Telephone:
+44(0)1460 230000
Fax:
+44(0)1460 230001
Email: sales@euroquartz.co.uk
Web: www.euroquartz.co.uk
Page
10kHz to 600kHz
MINIATURE SMD CRYSTAL
FOR SERIES OSCILLATORS
2 of 2
Figure 2 - CX-1H Typical Motional Capacitance (C1)
5
Circuit Design
C1
2
(fF)
Conventional Series Oscillator Circuit
1.0
0.5
10
50
100 200
600
Frequency (kHz)
Figure 3 - CX-1H Typical Quality Factor (Q)
Oscillator
50
Buffer
20
CX-1H Crystal
10
in '000s
5
Figure 1 - CX-1H Typical Motional Resistance (R1)
1000
2
500
10
50
100 200
600
Frequency (kHz)
200
R1
(k
Figure 4 - CX-1H Typical Turning Point Temp. (°C)
100
W)
+80
50
+70
+60
+50
20
10
+40
To(°C) +30
10
50
100 200
600
+20
+ 10
Frequency (kHz)
0
- 10
-20
18
50
100 200
600
Frequency (kHz)
Terminations
Packaging
Designation
CX-1H-SM - Bulk Pack (Standard)
- 16mm tape, 178mm or 330mm reels (Optional)
per EIA 481
- Tray Pack (Optional)
Termination
SM1
Gold Plated
SM2
Nickel, Solder Plated
SM3
Nickel, Solder Plated and Solder Dipped
Order Code
CX-1H
C = Ceramic Lid
Blank = Glass Lid
ā€œSā€ if special
or custom design
Blank if standard
Frequency
-SM1 32.768kHz
SM1
SM2
SM3
( A
Calibration
Tolerance*
@ 25°C
A, B, C
*For other calibration
tolerances enter
figure in ppm
/
I
)
Temperature
Range:
C = Commercial
I = Industrial
M = Military
S = Specify