57 features ?highly stable output ?wide temperature ?voltage control function ?small footprint ?tape and reel (1,000 pcs.) VC-TXO-35SM series vc-tcxo figure 1) VC-TXO-35SM top, side and bottom views package dimensions (mm) pad connections #1 vcontrol #2 gnd #3 output #4 v cc the VC-TXO-35SM is a vc (voltage controlled) tcxo (temperature compensated crystal oscillator) featuring very tight stability over a wide temperature range. the small subminiature smd ceramic package measures 3.2 x 5.0 x 1.5 mm. the voltage control has a tuning range of 5 ppm minimum. the low profile package is ideal for wireless communications applications. figure 2) land pattern sample part number: vc-txo35sm-128-b, 128=12.8 mhz, b=?.5 ppm -30 to +75?c part numbering guide series frequency stability / temperature option VC-TXO-35SM 128 b operating conditions/electrical characteristics vc-txo-3sm (5v) parameters conditions min typ max units frequency range 12.000 26.000 mhz oper. temp. -20 ~ +75 ? c 1.5 ppm oper. temp. -30 ~ +75 ? c 2.5 ppm oper. temp. -20 ~ +75 ? c 2.5 ppm frequency stability/temp oper. temp. -30 ~ +80 ? c 2.5 ppm supply voltage change +3.0 v 5% 0.3 ppm load change 10k ? 10%//10pf 10% 0.2 ppm aging per year @ +25 ? c 3 ? c 1 ppm storage temperature -40 +85 ? c supply voltage +3.0 v dc nominal +2.85 +3.0 +3.15 v dc input current without load 1.5 ma output voltage clipped sine wave (dc-cut) 0.8 vp-p output load 10k ? 10%//10pf 10% frequency control range +1.5 v dc 1v positive slope 9 15 ppm control voltage +0.5 +1.5 +2.5 v ecs, inc. international 1105 s. ridgeview, olathe, ks 66062 ?913-782-7787 ?800-237-1041 ?fax 913-782-6991 ?www.ecsxtal.com oscillators oscillators standard frequencies 13.000, 14.400, 16.800 and 19.440 mhz (option a) (option b) (option c) (option d) 4.0 1.2 1.0 2.6 5.0 0.15 #2 #3 #4 #1 3.2 0.15 1.5 max. #1 #2 #4 #3 3.2 0.8 1.6 .07
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