CX-1-0332B

CX MINIATURE CRYSTALS 8MHz to 160MHz MINIATURE AT-CUT QUARTZ CRYSTAL EURO QUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk Web: www.euroquartz.co.uk CX-1-03 CX-1-03 Page 1 of 2 General Description The CX-1 quartz crystal is a high quality miniature AT-cut resonator. The CX-1 is hermetically sealed in a rugged, miniature ceramic package, a quarter of the size of an eight pin dual-in-line package. The crystal is manufactured utilizing a photo-lithographic process, ensuring consistency and repeatability of electrical characteristics. 0.7      Low-profile hermetically sealed package Excellent ageing characteristics Fundamental or 3rd Overtone mode High shock resistance Full military environmental testing available Specification 8MHz to 160MHz A ±0.01% (±100ppm) B ±0.1% C ±1.0% 20pF (unless other required) Load Capacitance: See table Motional Resistance (R): See table Motional Capacitance (C): See table Quality Factor (Q): See table Shunt Capacitance (C): 500mW max. Drive Level: -10° to +70°C (Commercial) Temperature Stability**: -40° to +85°C (Industrial) -55° to +125°C (Military) ±5ppm max. Ageing, first year: 3000g 0.3ms, 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: 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. The characteristics of the frequency stability parameter follow that of AT-cut, thickness-shear mode crystals. * 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 Frequency Range: Calibration Tolerance*: 7.6 8.1 2.0 3.8 3.8 Outline and Dimensions Equivalent Circuit L R 1 C C 2 L  Motional Inductance C  Motional Capacitance C Shunt Capacitance R  Motional Resistance Standard Frequencies (MHz) 10.0 11.0592 12.0 14.318 16.0 19.6608 20.0 24.0 24.576 30.0 32.0 35.2512 36.0 40.0 CX-1 Motional Parameters, Q and C Motional Frequency Resistance R ( Motional Capacitance C (fF) Quality Factor ‘000s Shunt Capacitance C (pF) 9) 10.0MHz 32MHz 155MHz 50 20 50 5.5 7.8 0.5 80 36 41 2.2 2.6 3.2 CX MINIATURE CRYSTALS 8MHz to 160MHz MINIATURE AT-CUT QUARTZ CRYSTAL EURO QUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk Web: www.euroquartz.co.uk CX-1-03 CX-1-03 Page 2 of 2 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 seriesresonant 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. O F 1 2 Conventional HCMOS Pierce Oscillator Circuit RB Amplifier Buffer Osc. Freq. (Fo) C5 R) C CX-1 C Packaging CX-1-03 -Bulk Pack (Standard) Tray Pack (Optional) Order Code CX-1 O.T.=3rd O.T. Mode Blank = Fundamental Frequency Total Frequency Tolerance -03 32MHz (A Calibration Tolerance* @ 25°C A, B, C / 25ppm / 50ppm / I Frequency Stability over Temperature Range ) Side leads “S” if special C = Ceramic Lid or custom design Blank = Glass Lid Blank if standard *For other calibration tolerances enter figure in ppm Temperature Range: C = Commercial I = Industrial M = Military S = Specify