CX MINIATURE CRYSTALS CX-1H-SM EUROQUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] Web: www.euroquartz.co.uk Page 10kHz to 600kHz MINIATURE SMD CRYSTAL FOR SERIES OSCILLATORS 1 of 2 ! ! ! ! ! ! ! General Description The miniature CX-1H-SM quartz crystal is a high quality tuningfork resonator for use in series (two cascaded inverters) oscillators. The CX-1H-SM is hermetically sealed in a rugged, leadless ceramic package. The crystal has been designed for surfacemounting on printed circuit boards or hybrid circuits. The CX-1-SM crystal is manufactured using a photo-lithographic process, yielding consistently high quality production parts. (TOP) D Frequency Range: Calibration Tolerance*: Motional Resistance (R1): E D Motional Capacitance (C1): Quality Factor (Q): C E Turning Point (T0)**: Temperature Coefficient: Ageing, first year: Shock, survival***: Vibration, survival***: Operating Temperature: CX-1-SM Package Dimensions Typical (mm) Maximum (mm) A 8.00 8.38 B 3.56 3.94 C - see below D 1.14 1.40 E 1.52 1.78 Glass Lid (mm max.) Storage Temperature: Process Temperature: Specifications are typical at 25°C unless otherwise indicated. * ** *** Ceramic Lid (mm max.) SM1 1.65 1.78 SM2 1.70 1.83 SM3 1.78 1.90 L1 C1 Tighter frequency calibration available Other turning point available Higher shock and vibration version available CX-1H-SM Crystal Calibration Tolerance at 25°C Calibration Equivalent Circuit 1 10kHz to 600kHz A, B or C (see table) Figure 1 Max.: 10 ~ 169.9kHz, 2x typ. 170~600kHz, 2.5x typ. Figure 2 Figure 3 Min. is 0.25x typ. 2.0pF max. 10~24.98kHz 1.5µW max. 25~600kHz 3.0µW max. Figure 4 -0.035ppm/°C2 ±5ppm max. 1000g 1ms, 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 seconds Shunt Capacitance (C0): Drive Level: Outline Dimension “C” Specification A B Dimension Miniature tuning-fork design High shock resistance Designed for low-power applications Compatible with hybrid or PC board packaging Low ageing Full military environmental testing available Ideal for battery operated applications R1 C0 2 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% Solder Pad Layout 1.78 L 1 Motional Inductance C 1 Motional Capacitance C0 Shunt Capacitance 4.06 R 1 Motional Resistance 6.86 CX MINIATURE CRYSTALS CX-1H-SM EUROQUARTZ Telephone: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: [email protected] Web: www.euroquartz.co.uk Page 10kHz to 600kHz MINIATURE SMD CRYSTAL FOR SERIES OSCILLATORS 2 of 2 Figure 2 - CX-1H Typical Motional Capacitance (C1) 5 Circuit Design C1 2 (fF) Conventional Series Oscillator Circuit 1.0 0.5 10 50 100 200 600 Frequency (kHz) Figure 3 - CX-1H Typical Quality Factor (Q) Oscillator 50 Buffer 20 CX-1H Crystal 10 in '000s 5 Figure 1 - CX-1H Typical Motional Resistance (R1) 1000 2 500 10 50 100 200 600 Frequency (kHz) 200 R1 (k Figure 4 - CX-1H Typical Turning Point Temp. (°C) 100 W) +80 50 +70 +60 +50 20 10 +40 To(°C) +30 10 50 100 200 600 +20 + 10 Frequency (kHz) 0 - 10 -20 18 50 100 200 600 Frequency (kHz) Terminations Packaging Designation CX-1H-SM - Bulk Pack (Standard) - 16mm tape, 178mm or 330mm reels (Optional) per EIA 481 - Tray Pack (Optional) Termination SM1 Gold Plated SM2 Nickel, Solder Plated SM3 Nickel, Solder Plated and Solder Dipped Order Code CX-1H C = Ceramic Lid Blank = Glass Lid “S” if special or custom design Blank if standard Frequency -SM1 32.768kHz SM1 SM2 SM3 ( A Calibration Tolerance* @ 25°C A, B, C *For other calibration tolerances enter figure in ppm / I ) Temperature Range: C = Commercial I = Industrial M = Military S = Specify