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 for applications with high operating temperatures such as downhole instrumentation, rotary shaft sensors and underground boring tools. supply voltage: +3.3 10% calibration tolerance: 50ppm or tighter as reqd. frequency stability 25 ~ +150c: 100ppm 25 ~ +175c: 150ppm 25 ~ +200c: 175ppm total tolerance: 200ppm for 25 to 200c supply current (typical) 24mhz: 3.0ma 32mhz: 5.0ma 50mhz: 6.0ma output load (cmos): 15pf start-up time: 5ms max. rise/fall time: 10ns typical duty cycle: 60/40% ageing first year: 5ppm max. at 25c ageing: 100ppm max. at 200c shock survival standard: 5,000g, 0.3ms, ? sine hg version: 30,000g, 0.3ms, ? sine vibration survival: 20g, 10~2000hz swept sine operating temp. range: -55c to 225c specification features high temperature operation up to 200c excellent stability over temperature high shock resistance cmos output through-hole leaded package - reduces mounting stress robust lead attach-eutectic brazing process gold plated kovar leads LHTAT oscillators have two enable/disable options, designated e & n. the e version has a tristate output and stops oscillating internally when the output is placed in a high z state. the n version does not have the control pin, pin1, connected internally so there is no enable/disable function with this option. LHTAT oscillators how to order LHTAT oscillators LHTAT 4 a e sm1 - 20.0m ? / ? / 200 / h enable/disable option e or n terminations blank = sm1 = gold plated sm5 = solder dipped (lead free) frequency m = mhz k = khz calibration tolerance at 25c (in ppm) total frequency tolerance (ppm) temp. range h = 25 to 200c s = customer specified temp. range leaded high temperature/high shock shock level a = 5000g b = 10000g c = 20000g d = 30000g enable/disable options (e/n) supply voltage 4 = 3.3v frequency stability over temperature range (in ppm) outline & dimensions 320khz to 50mhz enable/disable option e - function table enable (pin1 high*) disable (pin 1 low) output frequency output high z state oscillator oscillates stops current normal very low packaging LHTAT oscillators are supplied tube packed. supply voltage: -0.5v to +4.0v maximum process temperature: 260c for 20 seconds storage temperature: -55 to +125c absolute maximum ratings 50 / 175 / - / h or calibration tolerance at 25c (in ppm) total frequency tolerance (ppm) temp. range h = 25 to 200c s = customer specified temp. range frequency stability over temp. range (in ppm)
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