CX MINIATURE CRYSTALS CX-2 EUROQUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] Web: www.euroquartz.co.uk Page 9.6MHz to 160MHz MINIATURE AT-CUT QUARTZ CRYSTAL 1 of 2 ! ! ! ! ! ! General Description The CX-2 AT-cut quartz crystal is a high quality, miniature resonator, hermetically sealed in a rugged, miniature ceramic package, a quarter the size of an eight pin dual-in-line. The CX-2 crystal is manufactured utilizing a photo-lithographic process, ensuring consistency and repeatability of electrical characteristics. Low-profile, hermetically sealed package Available with glass or ceramic lid High shock and vibration resistance Low ageing Custom designs available Full military environmental testing available Specification -02 End Lead 2.39 1 2 2.39 1 2 -04 Side Lead 6.60 3 3 1 2 -03 Side Lead 6.60 6.60 5.33 3 5.21 A 5.08 2.54 1.27 Outline and Dimensions Notes: 1. Terminal 1 is electrically connected to terminal 3. 2. Lead Dimensions: width 0.33mm typical, thickness 0.18mm. 3. A = Glass Lid - 2.03mm max. Ceramic Lid - 2.41mm max. Equivalent Circuit 1 L1 C1 R1 C0 L 1 Motional Inductance C 1 Motional Capacitance C0 Shunt Capacitance R 1 Motional Resistance 9.6MHz to 70MHz Fund. 70MHz to 160MHz 3rd O/T see table. Motional Resistance (R1): see table Motional Capacitance (C1): see table Quality Factor (Q): see table Shunt Capacitance (C0): A ±0.01% (±100ppm) Calibration Tolerance*: B ±0.1% C ±1.0% 20pF (or other as specified) Load Capacitance: 500mW max. Drive Level: -10° to +70°C from ±10ppm Temperature Stability**: -40° to +85°C from ±20ppm -55° to +125°C from ±30ppm ±5ppm max. Ageing, first year: 3,000g 0.2ms, ½ sine Shock, survival***: 20g rms 10 - 2,000Hz Vibration, survival: -10°~+70°C (commercial) Operating Temperature: -40°~+85°C (industrial) -55°~+125°C (military) -55°C~+125°C Storage Temperature: Lead to Package temp. not to Process Temperature: exceed 175°C Glass lid to package seal rim temp. not to exceed 210°C Specifications are typical at 25°C unless otherwise indicated. Note: temperature stability characteristics follow that of AT-cut thickness-shear mode. Frequency Range: 2 * Closer calibration available, from ±5ppm ** Does not include calibration tolerance *** Higher shock version available CX-2 Motional Parameters, Q and C0 Frequency Motional Motional Quality Shunt Resistance Capacitance Factor Capacitance C1 (fF) 000s C0 (pF) 95 1.4 R1 ( 10.0MHz W) 60 2.8 32MHz 20 7.8 36 2.4 155MHz 50 0.5 41 3.2 CX MINIATURE CRYSTALS CX-2 EUROQUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] Web: www.euroquartz.co.uk Page 9.6MHz to 160MHz MINIATURE AT-CUT QUARTZ CRYSTAL 2 of 2 Package Handling The CX crystal is hermetically sealed in a ceramic package. Normal handling and soldering precautions for small, low thermal mass parts are adequate when installing or testing CX crystals. The crystals may be wave soldered, taking proper precautions to avoid desoldering the leads. A slow machine rate or too high a pre-heat temperature or solder bath temperature can damage the crystals. Lead to package solder interface temperature should not exceed 175°C, and glass lid to package seal rim temperature should not exceed 210°C. Should the seal rim temperature exceed these limits the package may lose its hermeticity. Loss of hermeticity results in a decrease of frequency and increase in motional resistance. Typical Application Conventional HCMOS Pierce Oscillator Circuit Rf Amplifier Osc. Freq. (Fo) RA CS C1 Buffer CX-2 C2 Packaging CX-2-Leaded - Bulk Pack (Standard) Tray Pack (Optional) Order Code Total O.T.=3rd O.T. Mode CX-2 Blank = Fundamental S if special C = Ceramic Lid or custom design Blank = Glass Lid Blank if standard Frequency Frequency -03 32MHz Tolerance ( A / 25ppm / 50ppm / I Side leads Calibration Frequency -02 Tolerance* Stability -03 @ 25°C over -04 A, B, C Temperature Range *For other calibration tolerances enter figure in ppm ) Temperature Range: C = Commercial I = Industrial M = Military S = Specify