CX MINIATURE CRYSTALS CX-1H-03 EUROQUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] Web: www.euroquartz.co.uk Page 10kHz to 600kHz MINIATURE QUARTZ CRYSTAL FOR SERIES OSCILLATORS 1 of 2 ! ! ! ! ! ! General Description The CX-1H quartz crystal is a high quality tuning fork resonator designed for use in Series (two cascaded inverters) oscillators. The CX-1H is hermetically sealed in a rugged, miniature ceramic package, a quarter 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. Miniature tuning-fork design High shock resistance Designed for low-power applications Compatible with hybrid packaging Low ageing Full military environmental testing available Specification 0.7 Frequency Range: Calibration Tolerance*: Motional Resistance (R1): 7.6 8.1 Motional Capacitance (C1): Quality Factor (Q): 3.8 2.0 3.8 Shunt Capacitance (C0): Drive Level: Outline and Dimensions Equivalent Circuit 1 L1 C1 R1 C0 2 Turning Point (T0)**: Temperature Coefficient (k): Ageing, first year: Shock, survival***: Vibration, survival***: Operating Temperature: Storage Temperature: Process Temperature: L 1 Motional Inductance C 1 Motional Capacitance C0 Shunt Capacitance R 1 Motional Resistance 10kHz to 600kHz A, B, or C (see table below) Figure 1 2x Typ. @ 10~169.9kHz 2.5x Typ. @170~600kHz Figure 2 Figure 3 (Minimum is 0.25x Typ.) 2.0pF max. 1.5µW max. @ 10~24.9kHz 3.0µW max. @ 25~600kHz Figure 4 -0.035ppm/°C2 ±5ppm max. 1,000g 1ms, ½ sine 20g rms 10 - 2,000Hz -10°~+70°C (commercial) -40°~+85°C (industrial) -55°~+125°C (military) -55°C~+125°C Lead to Package temp. not to exceed 175°C Glass lid to package seal rim temp. not to exceed 210°C Specifications are typical at 25°C unless otherwise indicated. * Closer calibration available ** Other turning point available *** Higher shock and vibration available Conventional Series Oscillator Circuit CX-1H Crystal Calibration Tolerance at 25°C Calibration Oscillator CX-1H Crystal Buffer Frequency Range (kHz) 10~74.9 75~169.9 170~249.9 250~600 A ±0.003% ±0.005% ±0.01% ±0.02% B ±0.01% ±0.01% ±0.02% ±0.05% C ±0.1% ±0.1% ±0.2% ±0.5% CX MINIATURE CRYSTALS CX-1H-03 EUROQUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] Web: www.euroquartz.co.uk Page 10kHz to 600kHz MINIATURE QUARTZ CRYSTAL FOR SERIES OSCILLATORS 2 of 2 Figure 2 - CX-1H Typical Motional Capacitance (C1) Package Handling 5 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. C1 2 (fF) 1.0 0.5 10 20 50 100 200 600 Frequency (kHz) Figure 3 - CX-1H Typical Quality Factor (Q) 50 20 10 in '000s Figure 1 - CX-1H Typical Motional Resistance (R1) 5 1000 500 2 10 50 20 200 R1 (k 100 200 600 Frequency (kHz) 100 Figure 4 - CX-1H Typical Turning Point Temp. (°C) W) +80 50 +70 +60 +50 20 +40 To(°C) +30 10 10 20 50 100 200 +20 600 + 10 Frequency (kHz) 0 - 10 -20 10 Packaging 50 100 200 Frequency (kHz) f-fo k(T-To)2 = fo CX-1H-03 - Bulk Pack (Standard) Tray Pack (Optional) Order Code Side leads CX-1H 20 Frequency -03 32.768kHz (A / I) “S” if special Calibration or custom design Tolerance* Blank if standard @ 25°C (A) *For other calibrations (B) (C) insert value in ppm Temperature Range: C = Commercial I = Industrial M = Military S = Specify 600