description the SJ-A1440 series of quartz crystal oscillators provide enable/disable 3-state lvcmos compatible signals f or bus connected systems. supplying pin 1 of the SJ-A1440 units with a logic ?r open enables its pin 3 output. in the disable mode, pin 3 presents a high impedance to the load. features ? high reliability - nel halt/hass qualified for crystal oscillator start-up conditions ? low jitter - wavecrest jitter characterization avail- able ? wide frequency range0.0 mhz to 250.0 mhz ? user specified tolerance available ? will withstand vapor phase temperatures of 253 for 4 minutes maximum ? space-saving alternative to discrete component oscillators ? high shock resistance, to 3000g ? metal lid electrically connected to ground to reduce emi ? 3.3 volt operation ? high q crystal actively tuned oscillator circuit ? power supply decoupling internal ? no internal pll avoids cascading pll problems ? low power consumption ? gold plated leads ? rohs compliant, lead free construction SJ-A1440 series size, mm 9 x 14 i/o 4 j lead supply voltage 3.3v / 5v lvcmos SJ-A1440 series rev p frequency range: 10.0 mhz to 250.0 mhz creating a part number sj - a 144x - freq package code sj 4 j lead 9x14 mm smd input voltage code specification a 3.3 v 5 v tolerance/performance 0 ?00 ppm 0--0? 1 ?0 ppm 0--0? 7 ?5 ppm 0--0? 9 customer specific a ?0 ppm 0--0? b 50 ppm -40 to +85 c c 100 ppm -40 to +85 drawing specifications dimensions shown in inches and millimeters. e lectrical connection pin connection 1 enable input 2 g r ound & case 3 o utput 4v dd for the most up to date speci- fications on each nel prod- uct, log on to our website www.nelfc.com 357 b eloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone: 262-763-3591 fax: 262-763-2881 email: nelsales@nelfc.com www.nelfc.com
lvcmos SJ-A1440 series rev p frequency range: 10.0 mhz to 250.0 mhz test load operating conditions and output characteristics electrical characteristics parameter symbol conditions min typical max frequency 10.0 mhz 250.0 mhz duty cycle @v d d /2 45/55% 55/45% logic 0 v o l @600 ? 0.2 v logic 1 v oh @600 ? v dd -0.2 v rise & fall time t r , t f 10-90% 2 ns t pz 100 ns jitter, rms (2) 3 psec enable voltage 2.0v disable voltage 0.8v frequency stability (1) df/f overall conditions including: -100 ppm +100 ppm voltage, calibration, temp., 10 yr aging, shock, vibration g eneral characteristics parameter symbol conditions min typical max supply voltage ( 3) v d d 2.97 v 3.3 v 3.63 v supply current i dd no load 0.0 ma 40 ma 60 ma o utput c urr ent i o 0.0 ma 25.0 ma operating temperature t a o c70 o c storage temperature t s -55 o c 125 o c p o wer dissipation p d 218 mw lead temperature t l soldering, 10 sec. 300 o c load 15 pf start-up time t s 2 ms 10 ms e nvir onmental and m echanical characteristics mechanical shock per mil-std-202, method 213, condition e thermal s hock p er mil-std-833, m ethod 1011, condition a vibration 0.060" double amplitude 10 hz to 55 hz, 35gs 55 hz to 2000 hz soldering condition 300 o c for 10 seconds h ermetic seal leak rate less than 1 x 10 -8 atm.cc/sec of helium f ootnotes: 1) standard frequency stability (?0, ?5, ?0 ppm & others available). 2) jitter performance is frequency dependent. please contact factory for full wavecrest characterization. rms jitter bandwidth of 12khz to 20mhz. 3) internal high frequency power source decoupling.
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