39 ecs, inc. international 1105 s. ridgeview, olathe, ks 66062 ?913-782-7787 ?800-237-1041 ?fax 913-782-6991 ?www.ecsxtal.com smd oscillators smd oscillators the ECS-327SMO oscillator utilizes the 32.768 khz tuning fork crystal in a smd ceramic package. it is designed specifically for wireless pcmcia and portable communication equipment applications. features ?2.0 mm low profile ?smd version ?3.3 v input voltage ?tape & reel (1000 pcs) ECS-327SMO 32.768 khz smd clock oscillator part numbering guide part number* ECS-327SMO operating conditions/electrical characteristics package dimensions (mm) parameters conditions minimum typical maximum units output frequency 32.768 khz frequency stability -10 ~ +60?c -60 +30 ppm frequency stability -40 ~ +85?c -140 +30 ppm operating temperature -40 +85 ?c storage temperature -40 +85 ?c input voltage v cc +1.8v +3.3v +5.0v v dc input current with 15 pf load 8 15 a symmetry at 1/2 v cc level and +25?c 45/55 55/45 % rise and fall times 200 ns ??level v cc x 0.1v ??level v cc x 0.9v load cmos 15 pf 4.7 1.5 1.5 1.2 2.2 2.2 2.5 2.7 6.5 0.2 4.0 0.2 2.0 max. 1.7 1.2 3.0 #1 #4 #3 #2 pin connections #1 nc #2 gnd #3 output #4 v cc package data cover metal base ceramic terminal plating gold figure 1) ECS-327SMO ?top, bottom and side views figure 2) land pattern v cc 0.01 f cl: including fixture and probe capacitance. test point cl v dc power supply a #4 v cc n.c. #1 gnd #2 #3 output figure 3) test circuit 1/2 v cc t 10% 1/2 v cc 0v dc 90% v cc gnd "0" level tf tr t symmetry = 1/ t x 100(%) figure 4) output wave form
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