CX MINIATURE CRYSTALS
9.6MHz to 160MHz ULTRA-LOW PROFILE MINIATURE 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-6-SM CX-6-SM
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General Description
The CX-6-SM AT-cut quartz crystals are leadless devices designed for surface mounting on printed circuit boards or hybrid substrates. The crystals are intended for use in Pierce oscillators. Hermetically sealed in a miniature ceramic package, the crystals are produced utilizing a photo-lithographic process ensuring consistent high quality production units.
Ultra-low profile (1mm) Ideal for use with microprocessors Designed for low power applications Compatible with hybrid or PCB packaging High shock and vibration resistance Low ageing Full military environmental testing available Custom designs available
Specification
Frequency Range: Motional Resistance (R): Motional Capacitance (C): Quality Factor (Q): Shunt Capacitance (C):
D
(TO P)
A D
Calibration Tolerance*:
Outline
B
C
Load Capacitance: Drive Level: Temperature Stability**:
CX-6-SM Package Dimensions
Dimension Typical (mm) Maximum (mm)
Ageing, first year: Shock, survival***: Vibration, survival: Operating Temperature:
A B C D
Dimension C
6.73 2.62 1.27
Glass Lid (mm max.)
7.11 2.90 see below 1.52
Ceramic Lid (mm max.)
Storage Temperature: Process Temperature:
9.6MHz to 70MHz Fundamental 70MHz to 160MHz 3rd O/T see table see table see table see table A ±0.01% (±100ppm) B ±0.1% C ±1.0% 20pF (or other as specified) 500mW max. -10° to +70°C from ±10ppm -40° to +85°C from ±20ppm -55° to +125°C from ±30ppm ±5ppm max. 3000g peak, 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 260°C for 20 sec.
Specifications are typical at 25°C unless otherwise indicated. Note: the frequency stability characteristics follow that of AT-cut thickness-shear mode. * ** *** Closer calibration available, from ±5ppm Does not include calibration tolerance Higher shock version available
SM1 SM2 SM3
0.99 1.04 1.12
1.35 1.40 1.47
Equivalent Circuit
L R
1
C C
2
R Motional Resistance
L Motional Inductance
C Motional Capacitance C Shunt Capacitance
CX MINIATURE CRYSTALS
9.6MHz to 160MHz ULTRA-LOW PROFILE MINIATURE 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-6-SM
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Circuit Design
Conventional HCMOS Pierce Oscillator Circuit
RB Amplifier
Buffer Osc. Freq. (Fo)
C5
R)
C
CX-2
C
Solder Pad Layout
1.78 3.05
5.46
Terminations
Designation Termination
Packaging
CX-6-SM - Bulk Pack (Standard) - 16mm tape, 178mm or 330mm reels (Optional) per EIA 481 - Tray Pack (Optional)
SM1 SM2 SM3
Gold Plated Nickel, Solder Plated Nickel, Solder Plated and Solder Dipped
Order Code
O.T.=3rd O.T. Mode Frequency
Total Frequency Tolerance
CX-6
Blank = Fundamental
-SM1 32MHz
SM3
(A
Calibration Tolerance* @ 25°C A, B, C
/ 25ppm / 50ppm / I
Frequency Stability over Temperature Range Range:
)
S if special
C = Ceramic Lid SM1
or custom design Blank = Glass Lid SM2 Blank if standard
Temperature C = Commercial I = Industrial M = Military S = Specify
*For other calibration tolerances enter figure in ppm
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