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 cx6vsm 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 specifications stated are typical at 25c unless otherwise indicated. specifications may change without notice. frequency range: 18.0khz to 600.0khz functional mode: tuning fork (flexure) standard calibration tolerance 1 : see table motional resistance (r1): figure 1 max = 18~24.9khz, 2x typical 25~600khz, 2.5x typical motional capacitance (c1): figure 2 quality factor (q): figure 3 min. is 0.25x typical shunt capacitance (c0): 1.4pf max. drive level 18~24.9khz: 0.5w max. 25~600.0khz: 1.0w max. turning point (t 0 ) 2 : figure 4 temperature coefficient (k): -0.035ppm/c 2 ageing, first year: 5ppm max. shock, survival 3 : 1,500g peak, 0.3ms, ? sine vibration, survival 3 : 10g rms, 20~2000hz 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 specification features frequency range 18khz to 600khz high shock resistance low ageing ultra low profile package (1mm) full mil testing available packaging options cx6vsm crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (eia 418). cx6vsm crystal 1. tighter frequency calibration is available. 2. other turning point is available 3. higher shock and vibration survival is available how to order cx6vsm crystals cx6v - s - c - sm1 - 32.768k, 30 / m 's' if special, custom design. otherwise leave blank blank = glass lid c = ceramic lid terminations sm1 = gold plated * sm2 = solder plated sm3 = solder dipped sm4 = solder plated * sm5 = solder dipped * * = lead free frequency k = khz calibration tolerance @25c (in ppm) temp. range c = -10 ~ +70c i = -40 ~ +85c m = -55 ~ +125c s = customer specified miniature smd crystal for pierce oscillators 18khz to 600khz sm1 0.99 1.35 sm2 1.04 1.40 sm3 1.12 1.47 sm4 1.04 1.40 sm5 1.12 1.47 glass lid ceramic lid dim. h terminations - plating sm1 gold plated (lead free) sm2 solder plated sm3 solder dipped sm4 solder plated (lead free) sm5 solder dipped (lead free) designation termination
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 cx6vsm crystal miniature smd crystal for pierce oscillators 18khz to 600khz 30ppm 50ppm 100ppm 200ppm (0.003%) (0.005%) (0.01%) (0.02%) 100ppm 100ppm 200ppm 500ppm (0.01%) (0.01%) (0.02%) (0.05%) 1000ppm 1000ppm 2000ppm 5000ppm (0.1%) (0.1%) (0.2%) (0.5%) 18~74.9 75~169.9 170~249 standard calibration tolerance 250~600 frequency range (khz) 18~24.9 10pf 25~54.9 9pf 55~100.0 8pf frequency range (khz) load capacitance (cl)* 100.1~179.9 5pf 180~600 4pf load capacitance frequency range (khz) load capacitance * the load capacitance we use to calibrate cx6vsm. (other cl is available.) figure 1 cx6v typical motional resistance r1 figure 2 cx6v typical motional capacitance c1 figure 3 cx6v typical quality factor (q) figure 4 cx6v typical turning point temperature (to) note: frequency f at temperature t is related to frequency f0 at turning point temperature to by: f-fo fo =k(t-to) 2 turning point temperature crystal equivalent circuit r1 motional resistance l1 motional inductance c1 motional capacitance c0 shunt capacitance conventional cmos pierce oscillator circuit
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