CX-1SM3155MHZ(C/10PPM/50PPM/C) [EUROQUARTZ]
Parallel - Fundamental Quartz Crystal, 155MHz Nom, HERMETIC SEALED, MINIATURE, CERAMIC, SMD, 2 PIN;
| 型号： | CX-1SM3155MHZ(C/10PPM/50PPM/C) |
| 厂家： | 
EUROQUARTZ LIMITED |
| 描述： | Parallel - Fundamental Quartz Crystal, 155MHz Nom, HERMETIC SEALED, MINIATURE, CERAMIC, SMD, 2 PIN |
| 文件： | 总2页 (文件大小：104K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CX MINIATURE CRYSTALS
EUROQUARTZ
Telephone:
Fax:
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
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CX-1-SM
8MHz ttoo 116600MMHHzz
MMIINNIIAATTUURREE AATT--CCUUTT
SMD CCRRYYSSTTAALL
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Surface-mount - infrared, vapour phase,
wave solder or epoxy mount techniques
Low profile, hermetically sealed package
Available with glass or ceramic lid
High shock and vibration resistance
Custom designs available
General Description
The miniature CX-1-SM crystals in leadless ceramic packages have
been designed for surface-mounting on printed circuit boards or
hybrid circuits. It is a robust crystal that has gained widespread
acceptance in the industry.
Full military environmental testing available
Specification
Frequency Range:
Calibration Tolerance*:
8MHz to 160MHz
A
B
±0.01% (±100ppm)
±0.1%
±1.0%
D
C
A
Load Capacitance:
20pF (unless other required)
See table
See table
E
D
Motional Resistance (R ):
Motional Capacitance (C ):
Quality Factor (Q):
Shunt Capacitance (C ):
Drive Level:
Temperature Stability**:
B
See table
See table
C
E
500 W max.
Outline
-10° to +70°C from ±10ppm
-40° to +85°C from ±20ppm
-55° to +125°C from ±30ppm
±5ppm max.
CX-1-SM Package Dimensions
Ageing, first year:
Shock, survival***:
Vibration, survival:
Operating Temperature:
3000g 0.3ms, ½ sine
20g rms 10-2,000Hz random
-10°~+70°C (commercial)
-40°~+85°C (industrial)
-55°~+125°C (military)
-55°C~+125°C
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
1.14
1.52
Specifications are typical at 25°C unless otherwise indicated.
The characteristics of the frequency stability parameter follow that of
AT-cut, thickness-shear mode crystals.
1.78
*
**
**
Closer calibration available, as low as ±5ppm
Does not include calibration tolerance
A higher shock version is available, refer to data sheet for
the model CX-1HG
SM1
SM2
SM3
1.65
1.70
1.78
1.78
1.83
1.90
CX-1 Motional Parameters, Q and C
Equivalent Circuit
L
R
C
C
1
2
10.0MHz
32MHz
50
20
50
5.5
7.8
0.5
80
36
41
2.2
2.6
3.2
155MHz
R
C
Motional Resistance
Motional Capacitance
L
Motional Inductance
Shunt Capacitance
C
CX MINIATURE CRYSTALS
EUROQUARTZ
Telephone:
Fax:
+44(0)1460 230000
+44(0)1460 230001
sales@euroquartz.co.uk
www.euroquartz.co.uk
Page
CX-1-SM
8MHz ttoo 116600MMHHzz
MMIINNIIAATTUURREE AATT--CCUUTT
SMD CCRRYYSSTTAALL
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Terminations
Circuit Design
Typical HCMOS Pierce Oscillator
A conventional HCMOS Pierce oscillator is shown below. The
crystal oscillates at a frequency f above the crystal’s series-
resonant frequency. The crystal is effectively inductive and in
combination with R , C and C in the feedback loop, provides
approximately 180° of the phase shift necessary to ensure
oscillation.
SM1
SM2
SM3
Gold Plated
Nickel, Silver Plated
Nickel, Solder Plated and Solder Dipped
Packaging
Conventional HCMOS Pierce Oscillator Circuit
CX-1-SM - Bulk Pack (Standard)
R
-
16mm tape, 178mm or 330mm reels (Optional)
per EIA 481
Tray Pack (Optional)
Amplifier
Buffer
-
Osc.
Freq. (Fo)
R
C
Suggested Solder Pad Layout
C
C
CX-1
1.78
4.06
6.86
Order Code
Total
Frequency
Tolerance
O.T.=3rd O.T. Mode
Blank = Fundamental
Frequency
CX-1
SM1
( A / 25ppm / 50ppm / I )
32MHz
SM1
SM2
SM3
“S” if special
or custom design
Blank if standard
Calibration
Tolerance*
@ 25°C
Frequency
Stability
over
Temperature
Range
Temperature
Range:
C = Commercial
I = Industrial
M = Military
S = Specify
A, B, C
C = Ceramic Lid
Blank = Glass Lid
*For other calibration tolerances
enter figure in ppm
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