CX MINIATURE CRYSTALS
8MHz to 160MHz LOW-PROFILE SMD CRYSTAL
EURO QUARTZ
Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk Web: www.euroquartz.co.uk
CX-5-SM CX-5-SM
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General Description
The CX-5-SM series surface-mount quartz crystals are leadless devices designed for surface-mounting on printed circuit boards or hybrid substrates. The packages are hermetically sealed and designed specifically for process temperatures up to 260°C.
B C 4 A 1 2 F E D 3
Surface-mount - infrared, vapour phase, wave solder or epoxy mount techniques Low profile, hermetically sealed package Standard surface-mount pad layout Full military environmental testing available
Specification
8MHz to 70MHz Fundamental 48MHz to 160MHz 3rd O/T see table below Motional Resistance (R): see table below Motional Capacitance (C): see table below Quality Factor (Q): see table below Shunt Capacitance (C): A ±0.005% Calibration Tolerance*: B ±0.1% C ±1.0% Customer specified Load Capacitance: 500mW max. Drive Level: -10° to +70°C from ±5ppm Temperature Stability**: -40° to +85°C from ±30ppm -55° to +125°C from ±30ppm ±1ppm typ., ±5ppm max. Ageing, first year: 3000g 1ms, ½ sine Shock, survival***: 20g rms 10-2,000Hz random Vibration, survival: -10°~+70°C (commercial) Operating Temperature: -40°~+85°C (industrial) -55°~+125°C (military) -55°C~+125°C Storage Temperature: Specifications are typical at 25°C unless otherwise indicated. * Tighter tolerances available ** Does not include calibration tolerance *** Higher shock available
Frequency Range:
Outline
Pin Connections 1. Crystal 2. Ground (case) 3. Crystal 4. Ground (case)
CX-5-SM Package Dimensions
Dimension (mm) Dimension Value
A B C D E F
7.67 5.18 1.30 2.54 1.02 1.40
max. max. max. typ. typ. typ.
CX-5-SM Motional Parameters, Q and C Equivalent Circuit
L R
Motional Frequency Resistance R ( Motional Capacitance C (fF) Quality Factor 000s Shunt Capacitance C (pF)
9)
1
C C
2
12MHz 16MHz 155MHz
58 35 50
2.2 4.3 0.5
108.6 65 41
1.3 1.8 3.2
R Motional Resistance
L Motional Inductance
C Motional Capacitance C Shunt Capacitance
CX MINIATURE CRYSTALS
8MHz to 160MHz LOW-PROFILE SMD CRYSTAL
EURO QUARTZ
Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk Web: www.euroquartz.co.uk
CX-5-SM
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Circuit Design
Conventional HCMOS Pierce Oscillator Circuit
RB Amplifier
Process Temperatures
1.) Vapour Phase 2.) Wave Solder 3.) Infrared 4.) Conductive Epoxy 253°C or 215°C for 10 sec. to 5 min. 260°C for 10 sec. 240°C for 10 sec. 165°C for 30 min.
Buffer Osc. Freq. (Fo)
C5
R)
Packaging
CX-5-SM - Tray Pack (Standard) - Bulk Pack (Optional) - 16mm tape, Single Pitch, 178mm or 330mm reels (Optional) per EIA 481
C
CX-2
C
Suggested Solder Pad Layout
6.1 1.12 1.42 2.54 4.19
Terminations
Designation
Termination
SM1 SM3
Gold Plated Nickel, Solder Plated and Solder Dipped
Order Code
Frequency
CX-5
S if special or custom design
-SM1
SM1 SM3 Blank if standard
10.0MHz
(A
Calibration Tolerance* @ 25°C A, B, C
/
I
Range:
)
Temperature C = Commercial I = Industrial M = Military S = Specify
*For other calibration tolerances enter figure in ppm
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