model : t yp e: qt71 cr y stal oscillator e q uivalent militar y desi g nation: n/a fre q uenc y stabilit y vs tem p erature screened output logic fre q uenc y o p tions ttl cmos hcmos/acmos ecl/pecl 500 khz to 66 mhz not available 500 hz to 66 mhz 4 mhz to 80 mhz pin confi g uration code % ppm temp. 1 .01 100 0 oc to +70 oc 3** .0005 5 0 oc to +50 oc 4 .005 50 0 oc to +70 oc 5 .0025 25 -20 oc to +70 oc 6 .005 50 -55 oc to +105 oc 9 .005 50 -55 oc to +125 oc 10 .01 100 -55 oc to +125 oc 11 .005 50 -40 oc to +85 oc 12 .01 100 -40 oc to +85 oc ** requires external tuning capacitors, for pad connections and for frequencies above 20 mhz, consult the factory for frequency stability vs. temperature options not listed herin, request a custom part number. vcc gnd out case itp 8 22, 26 28 22, 26 n/a pa g e 1 of 3 standar d 07-ma r -2007 mhtml:file://y:\cp l\03062007\qtec\qt71.mht
screened phase noise factor y options output logic * output logic can drive up to 200 pf load with typical 6 ns rise & fall time (tr, tf). t c hc ac l e eh ef pe z ttl cmos (not available) high speed cmos a dvanced cmos low voltage, 3.3 v 10 k ecl 10 kh ecl 100 k ecl/300 k ecl +5 v ecl (pecl) special cmos* d tristate output option (add "d" as a suffix to the above listed options) electrical s p ecifications item ttl cmos hc/acmos*** ecl supply voltage 5 v 10% n/a 5 v 10%** -5.2 v std. for 10 k/10 kh output -4.5 v std. for 100 k/300 k output supply current (typical) 66 to 80 mhz: 80 ma 50 to 66 mhz: 40 ma 27 to 50 mhz: 25 ma 6.5 to 27 mhz: 12 ma .01hz to 6.5 mhz: 20 ma n/a hc = 6 ma @ 10 mhz ac = 20 ma @ 35 mhz special supply voltage or current available. ultra low current for battery operation also available. 35 ma (typ) for 10 k load > 60 mhz: 6 ttl < 60 mhz: 10 ttl n/a typical 2 ma drive. can drive 1 ttl load. standard ecl, designed for 20 ecl loads. symmetry* 8 mhz: 60/40% < 8 mhz: 45/55% n/a 10 mhz: 60/40% < 10 mhz: 45/55% 60/40% * optional symmetry selections ar e 45/55 or 47.5/52.5 custom symmetry is also available upon request. ** parts are available with suppl y range of 2.5 to 6 volts. *** low voltage logic ava liable, vcc = 3.3 v 10%, current = 12 ma @ 40 mhz, drive capability = 15 pf pa g e 2 of 3 standar d 07-ma r -2007 mhtml:file://y:\cp l\03062007\qtec\qt71.mht
pa g e 3 of 3 standar d 07-ma r -2007 mhtml:file://y:\cp l\03062007\qtec\qt71.mht
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