43 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 features ? 3x5 mm footprint ? smd ? 3 & 5 v versions ? seam welded package ? tape and reel (1,000 pcs) ecs-3961/3963 series smd clock oscillator * inclusive of 25?c tolerance, operating temperature range, input voltage change, load change, aging shock and vibration. ** reduced operating temperature with option c (30 ppm) -10? ~ +60?c 5.0 0.12 3.2 0.1 1 1 4 2 3 3 2 4 2.54 1.0 0.1 1.0 1.2 figure 1) ecs-3961/3963 series top, side and bottom views package dimensions (mm) pin connections #1 standby #2 gnd #3 output #4 v cc ecs-3963 (3v) standby control voltage pin #1 = open #3 = output pin #1 = +2.1v min #3 = output pin #1 = 0.9v max #3 = no oscillation the ecs-3961 (5v) and 3963 (3v) is our smallest crystal controlled low-current clock oscillator. this subminiature, very low profile leadless ceramic package is ideal for todays smd manufacturing environment. package is seam welded with a metal lid. 0 vdc t t 90% v cc 1 level 0 level tr tf 10% v cc 1/2 v cc 1.5 o8 o.9 1.5 1.6 2.5 1.6 2.3 figure 2) output waveform ecs-3961 (5v) standby control voltage pin #1 = open #3 = output pin #1 = +3.5v min #3 = output pin #1 = 1.5v max #3 = no oscillation sample part number: ecs-3961-144-a part numbering guide example series frequency (14.4 mhz) (stability tolerance (a=100 ppm) ecs C 3961 C 144 C a operating conditions/electrical characteristics ecs-3961 (5v) ecs-3963 (3.0v) parameters conditions min typ max min typ max units frequency range 2.500 35.000 2.500 66.666 mhz option (a) -100 +100 -100 +100 ppm option (b) -50 +50 -50 +50 ppm frequency stability** option (c)** -30 +30 -30 +30 ppm operating temperature -10 +70 -10 +70 ?c storage temperature -55 +125 -55 +125 ?c input voltage v cc +4.5 +5 +5.5 +2.7 +3.0 +3.3 v dc 2.5 ~ 35.0 mhz 15 10 ma 35.0 ~ 50.0 mhz - 15 ma input current 1.8 ~ 36.0 mhz - 20 ma output symmetry @ 1/2 v cc level 40/60 50 4 60/40 40 50 4 60 % rise and fall times 10 10 ns logic 0 level v cc x 0.1v max. logic 1 level v cc x 0.9v max. load 15 15 pf standby current (no oscillation) 10 10 a start-up 10 10 ms figure 4) land pattern v cc 0.01 f standby sw cl: including fixture and probe capacitance. test point cl v dc power supply a #4 v cc standby #1 gnd #2 #3 output figure 3) test curcuit
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