description the SJ-A1420 series of quartz crystal oscillators provide enable/disable 3-state lvcmos compatible signals for bus connected systems. supplying pin 1 of the SJ-A1420 units with a logic ?r open enables its pin 3 o utput. in the disable mode, pin 3 presents a high impedance to the load. all units are designed to survive standard wave soldering operations without damage. features ? high reliability - nel halt/hass qualified for crystal oscillator start-up conditions ? low jitter - wavecrest jitter characterization avail- able ? wide frequency range.0 mhz to 80.0 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-A1420 series size, mm 9 x 14 i/o 4 j lead supply voltage 3.3v / 5v lvcmos SJ-A1420 series rev s frequency range: 1.0 mhz to 80.0 mhz creating a part number sj - a 142x - freq package code sj 4 j lead 9x14 mm smd input voltage code specification a 3.3 v 5 v t olerance/performance 0 ?00 ppm 0--0? 1 50 ppm 0-70 7 ?5 ppm 0--0? 9 customer specific a ?0 ppm 0--0? b ?0 ppm --0 to +85? c ?00 ppm --0 to +85? drawing specifications dimensions shown in inches and millimeters. e lectrical connection pin connection 1 enable/disable input 2 ground 3 o utput 4 v dd f or the most up to date speci - fications on each nel prod- uct, log on to our website www .nelfc.com 357 b eloit s tr eet, p .o. bo x 457, b urlington, wi 53105-0457 u.s.a. p hone: 262-763-3591 f ax: 262-763-2881 e mail: nelsales@nelfc.com www .nelfc.com
lvcmos SJ-A1420 series rev s frequency range: 1.0 mhz to 80.0 mhz test load operating conditions and output characteristics electrical characteristics parameter symbol conditions min typical max frequency 1.0 mhz 80.0 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 -0.2v rise & fall time t r , t f 10-90% 8 ns t pz 25 ns enable/disable logic high voltage 1.6 v enable/disable logic low voltage 0.4 v jitter, rms ( 2) 3 psec frequency stability (1) df/f overall conditions including: -100 ppm +100 ppm voltage, calibration, temp., 10 yr aging, shock, vibration general characteristics parameter symbol conditions min typical max s upply v oltage (3) v dd 3.3v 10% 2.97 v 3.3 v 3.63 v s upply c urr ent i dd n o load 0.0 ma 25 ma 40 ma output current i o 0.0 ma ?6.0 ma operating temperature t a o c70 o c s torage t emperatur e t s -55 o c 125 o c power dissipation p d 145 mw lead temperature t l soldering, 10 sec. 300 o c load 15 pf s tar t-up t ime t s 2 ms 10 ms environmental and mechanical characteristics mechanical shock per mil-std-202, method 213, condition e thermal s hock per mil-std-833, method 1011, condition a v ibration 0.060" double amplitude 10 hz to 55 hz, 35gs 55 hz to 2000 hz s oldering condition 300 o c for 10 seconds hermetic seal leak rate less than 1 x 10 -8 atm.cc/sec of helium f ootnotes: 1) s tandard 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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