euroquartz limited blacknell lane crewkerne somerset uk ta18 7he tel: +44 (0)1460 230000 fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk euro quartz 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. outline & dimensions specification features frequency range 80khz to 160khz high shock resistance ultra-small ceramic package low ageing designed for low power applications full mil testing 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). CX7VSM crystal how to order CX7VSM crystals cx7v - s - c - sm1 - 100.0k, a / i 's' if special, custom design. otherwise leave blank blank = glass lid c = ceramic lid terminations sm1 = gold plated * sm2 = solder plated sm3 = solder dipped frequency k = khz calibration tolerance* a b c temp. range c = -10 ~ +70c i = -40 ~ +85c m = -55 ~ +125c s = customer specified 80khz to 160khz ultra-miniature smd crystal parameters fundamental frequency (khz): 100.0 153.6 motional resistance r1 (k): 19 11 motional capacitance c1 (ff): 1.0 0.8 qualityfactor q (k): 86 110 load capacitance (pf) 1 : 5 5 turning point (c) 2 : 10 5 specifications stated are typical at 25c unless otherwise indicated. specifications may change without notice. 1. other load capacitance values are available. 2. other temperature available. 3. thighter tolerances available. drive level: 0.5w max. temperature coefficient (k): -0.035ppm/c 2 ageing, first year: 5ppm max. note: frequency f at temperature t is related to frequency fo at turning point temperature to by: f-fo fo =k(t-to) 2 shock, survival: 5000g, 0.3ms, ? sine vibration, survival: 20g rms, 10~2000hz random operating temperature range commercial: -10 to +70c industrial: -40 to +85c military: -55 to +125c storage temperature range: -55 to +125c maximum process temperature: +260c for 20 seconds standard calibration tolerance for 32.768khz (3) glass lid: a = 50ppm (0.003%) b = 100ppm (0.01%) c = 1000ppm (0.1%) ceramic lid: a = 100ppm (0.01%) b = 1000ppm (0.1%) c = 10000ppm (1.0%) * if other calibration required enter in ppm. terminations - plating sm1 gold plated sm2 nickel, solder plated sm3 nickel, solder plated and solder dipped designation termination conventional cmos pierce oscillator circuit sm1 1.14 1.27 sm2 1.17 1.30 sm3 1.22 1.35 glass lid ceramic lid dim. h
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