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 the CXOXULP 32.768khz oscillator achieves low power consumption comparable witht a tuning fork design and the fast start up and tight stability obtainable with at-cut crystal designs. designed for applications requiring ultra-low current and fast start-upthe part offers stability of 30ppm to 100ppm over -55 to +125c; this being achieved while being able to withstand significantly higher shock than a tuning fork design. outline & dimensions frequency range: 32.7680khz supply voltage: 1.8v to +3.3 volts 10% calibration tolerance: 25ppm frequency stability over operating temperature range commercial (0 ~ +70c): 10 to 50ppm industrial(-40 ~ +85c): 20 to 100ppm military (-55 ~ +125c): 50 to 100ppm output load (cmos): 15pf ageing: 5ppm first year shock, survival: standard: 5000g, 0.3ms, ? sine hg: 10,000g, 0.3ms, ? sine vibration survival: 20g, 10~2000hz swept sine rise and fall time: 6ns maximum absolute maximum ratings supply voltage: -0.3v to 5.0v storage temperature: -55 t +125c maximum process temperature: 260c for 20 seconds specification features ultra-low current consumption (typically 15a) fast start-up (typically 15ms) tight tolerance high shock resistance low ageing full military testing available output frequency output high z state oscillator oscillates stops current 15a 4.0a at 25c when pad 1 is allowed to float it is held high by an internal pull-up resistor. enable (pad 1 high) enable/disable options packaging options CXOXULP oscillators are available either tray packed (<250pcs) or tape and reel (>250 pieces). 12mm tape, 178mm or 330mm reels (eia 418). CXOXULP oscillators how to order CXOXULP crystal oscillators CXOXULP hg 4 s n - sm3 - 32.768k, 50 / 50 / ? / i blank = standard s = special or custom enable/disable option, e or n terminations blank = sm1 = gold plated sm3 = solder dipped sm5 = solder dipped (sm1 and sm5 are pb free) frequency in khz calibration tolerance at 25c (in ppm) frequency stability over temp. range (in ppm) temp. range c = -10 ~ +70c i = -40 ~ +85c m = -55 ~ +125c s = customer specified ultra-low power/fast start-up/high shock 32.768khz supply v. 1 = 1.8v 2 = 2.5v 3 = 3.0v 4 = 3.3v shock level blank = std. hg = high shock actual size top view side view there are two enable/disable options available, 'e' and 'n'. the 'e' option stops oscillating when the output is put into the high z state. the 'n' version does not have pad 1 connected internally. the table below describes the 'e' enable/disable option. disable (pad 1 low) output voltage high 0.9vdd v output voltage low 0.1vdd v start-up time: 15 ms rise time (10%~90%) 85 160 ns fall time (10%~90%) 45 100 ns duty cycle 45 50 55 % input current 15 a v oh v ol t startup t r t f i dd symbol parameter min. typ. max. unit
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