EURO QUARTZ CX7VSM CRYSTAL Ultra-Miniature SMD Crystal 80kHz to 160kHz FEATURES OUTLINE & DIMENSIONS Frequency Range 80kHz to 160kHz High shock resistance Ultra-small ceramic package Low ageing Designed for low power applications Full MIL testing available DESCRIPTION CX7VSM crystals are leadless devices designed for surface mounting on PCBs or hybrid substrates. The crystals are intended for use in Pierce (single inverter) oscillator circuits. SPECIFICATION Specifications stated are typical at 25°C unless otherwise indicated. Specifications may change without notice. Parameters Fundamental Frequency (kHz): 100.0 153.6 Motional Resistance R1 (kΩ): 19 11 Motional Capacitance C1 (fF): 1.0 0.8 QualityFactor Q (k): 86 110 5 5 10 5 Load Capacitance (pF)1: Turning Point (°C)2: Ceramic Lid: Designation A = ±50ppm (0.003%) B = ±100ppm (0.01%) C = ±1000ppm (0.1%) A = ±100ppm (0.01%) B = ±1000ppm (0.1%) C = ±10000ppm (1.0%) Drive Level: Temperature Coefficient (k): Ageing, first year: Glass Lid Ceramic Lid SM1 SM2 SM3 1.14 1.17 1.22 1.27 1.30 1.35 TERMINATIONS - PLATING Standard Calibration Tolerance for 32.768kHz (3) Glass Lid: Dim. H Termination SM1 SM2 SM3 0.5µW max. -0.035ppm/°C2 5ppm max. Gold Plated Nickel, Solder Plated Nickel, Solder Plated and Solder Dipped Conventional CMOS Pierce Oscillator Circuit Note: Frequency f at temperature T is related to frequency Fo at turning point temperature To by: f-fo =k(T-To)2 fo Shock, survival: Vibration, survival: Operating Temperature Range Commercial: Industrial: Military: Storage Temperature Range: Maximum Process Temperature: 1. 2. 3. 5000g, 0.3ms, ½ sine 20g rms, 10~2000Hz random -10° to +70°C -40° to +85°C -55 to +125°C -55° to +125°C +260°C for 20 seconds Other load capacitance values are available. Other temperature available. Thighter tolerances available. PACKAGING OPTIONS CX7VSM crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (EIA 418). HOW TO ORDER CX7VSM CRYSTALS CX7V - S 'S' if special, custom design. Otherwise leave blank - C Blank = glass lid C = ceramic lid - SM1 - Terminations SM1 = Gold plated * SM2 = Solder plated SM3 = Solder dipped 100.0K, A Frequency K = kHz Calibration Tolerance* A B C / I Temp. Range C = -10° ~ +70°C I = -40° ~ +85°C M = -55° ~ +125°C S = Customer specified * If other calibration required enter in ppm. EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 [email protected] www.euroquartz.co.uk