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 CX2HSM crystals consist of a high quality tuning fork resonator in a rugged, hermetically sealed ceramic package. CX2HSM crystals are intended for use in series (two cascaded inverters) oscillator circuits. outline & dimensions specifications stated are typical at 25c unless otherwise indicated. specifications may change without notice. frequency range: 16.0khz to 600.0khz standard calibration tolerance*: see table motional resistance (r 1 ): figure 1 max = 16~169.9khz, 2x typical 170~600khz, 2.5x typical motional capacitance (c 1 ): figure 2 quality factor (q): figure 3 min. is 0.25x typical shunt capacitance (c 0 ): 2.0pf max. drive level 16~24.9khz: 1.5w max. 25~600.0khz: 3.0w max. turning point (t 0 )**: figure 4 temperature coefficient (k): -0.035ppm/c 2 ageing, first year: 5ppm max. shock, survival***: 1,500g, 0.3ms, ? sine vibration, survival***: 10g rms, 20~2000hz 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 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%) 16~74.9 75~169.9 170~249.9 standard calibration tolerance features frequency range 16khz to 600khz high shock resistance low ageing designed for low power applications full mil testing available packaging options CX2HSM crystals are available either tray packed (<250pcs) or tape and reel (>250 pieces). 16mm tape, 178mm or 330mm reels (eia 418). CX2HSM crystal * tighter frequency calibration is available. ** other turning point is available *** higher shock and vibration survival is available how to order CX2HSM crystals cx2h - s - c - sm1 - 32.768k 30 / 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 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 series oscillators 16khz to 600khz 250~600 frequency range (khz) a 6.60 6.99 b 2.39 2.74 c see below d 0.89 1.14 e 1.50 1.75 f 1.27 1.52 g 2.67 2.92 h 3.94 4.19 i 5.33 5.59 typ. max. dim. sm1 1.65 1.91 sm2 1.70 1.96 sm3 1.78 2.03 sm4 1.70 1.96 sm5 1.78 2.03 glass lid ceramic lid dim. c
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 CX2HSM crystal miniature smd crystal for series oscillators 16khz to 600khz crystal equivalent circuit r1 motional resistance l1 motional inductance c1 motional capacitance c0 shunt capacitance conventional series oscillator circuit figure 1 cx2h typical motional resistance r1 figure 2 cx1h typical motional capacitance c1 figure 3 cx2h typical quality factor (q) figure 4 cx2h typical turning point temperature (to) 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 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
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