type vectron international ?267 lowell road, hudson, nh 03051 ?tel: 1-88-vectron-1 ?web: www.vectron.com 40 oven controlled crystal oscillators (ocxo s) ex-380/385 (emxo ) features ?aging: <1x10 -9 /day, <1x10 -7 / year, <1x10 -6 /10 years (@ 10 mhz) ?temperature stability: to 7.5x10 - 8 over -20? to 70? ?acceleration sensitivity: <1x10 -9 /g, total gamma ?uses sc family 3rd overtone crystal ?low power consumption: <0.35 watts ?frequencies: 10 to 20.48 mhz (additional frequencies available up to 80 mhz - consult factory) ?patented techniques* ?u.s. patent 5,917,272 performance characteristics standard frequencies 10, 10.23, 12.8, 13, 16.384, 19.44, 20 & 20.48 mhz package size see next page for drawings and dimensions supply voltage 5 vdc 5%, 3.3vdc 5% supply current (steady state) <70 ma @ +25? with 5 vdc supply <90 ma @ +25? with 3.3 vdc supply <120 ma @ -40? with 5 vdc supply <150 ma @ -40? with 3.3 vdc supply turn-on current 300 ma max @ 5 vdc / 450 ma max @ 3.3 vdc output type hcmos (+3 dbm sinewave available with ex-385, consult factory) level "0" and "1" <0.4 volts, >0.9 vdd rise/fall time (10-90%) <7 ns symmetry (duty cycle) 50/50 10% (at 50% vdd) temperature stability: d-758 = 0.075 ppm over -20? to +70? (note: tighter stabilities and wider temperature d-st3 = stratum 3 over -20? to +70? ranges are available, please consult factory.) f-st3 = stratum 3 over -40? to +85? f-107 = 0.1 ppm over -40? to +85? x -st3 = stratum 3 holdover stability per gr-1244-core table 3-1 as described in sections 5.2 and 9.1 aging (10mhz typical) <1x10 -9 /day average, <1x10 -7 first year, <1x10 -6 /10 years short term stability (allan deviation) <5x10 -10 , 0.1 seconds to 10 seconds phase noise of fset phase noise (typical at 10 mhz, static condition) 10 hz -100 dbc/hz 100 hz -130 dbc/hz 1 khz -140 dbc/hz 10 khz -145 dbc/hz 100 khz -150 dbc/hz frequency vs. supply <2.5x10 -9 per percent change warm-up (restabilization) standard optional (consult factory) (frequency relative to that 1 hour after turn-on, < 1x10 -6 60 seconds 45 seconds following 24 hours off time, at +25?) < 1x10 -7 120 seconds 90 seconds electrical frequency adjust > 1ppm range with 0 to vdd input voltage acceleration sensitivity 1x10 -9 /g total gamma, standard (10 mhz) 5x10 -10 /g available at 10 mhz (consult factory for tighter specification.) parameter characteristics 8798_aa's vectron 05/30/02 3:11 pm page 40
vectron international ?267 lowell road, hudson, nh 03051 ?tel: 1-88-vectron-1 ?web: www.vectron.com 41 7.62 max ! (.30 max) 0.457 dia ! (.018 dia) square corner pin 1 5.08 min ! (.20 min) c l 7.63 ! (.30) 15.24 ! (.60) 2.54 ! (.10) 1 7 8 14 3.81 ! (.15) 13.21 ! (.52) 20.83 ! (.82) marking standoff?s 4 places at pins. oven controlled crystal oscillators (ocxo s) 380 package outline drawing 385 package outline drawing recommended reflow profile block diagram ordering information pin function 1 frequency control 7 gnd, case 8 output 14 supply pin numbers are for reference, only, they do not appear on unit 380 st3 ex d a - f a 12.800 mhz package 380 = thru hole 385 = smt output frequencies 10.000 mhz 16.384 mhz 10.230 mhz 19.440 mhz 12.800 mhz 20.000 mhz 13.000 mhz 20.480 mhz other options a = electrical frequency adjust (standard) f = fixed frequency, no frequency adjust, initial accuracy 25? is 1.5 ppm t emperature & stability d-758 = 0.075 ppm over -20? to +70? d-st3 = stratum 3 over -20? to +70? f-st3 = stratum 3 over -40? to +85? f-107 = 0.1 ppm over -40? to +85? note: tighter stabilities and wider temperature ranges are available, please consult the factory. output a = hcmos supply v oltage c = 5.0 vdc 5% d = 3.3 vdc 5% power transistor ! & resistor oven ! control ! circuitry thermistor +vcc ! output ! buffer ! stage ! (hcmos) precision ! vcxo ! +/-1.0ppm output upper ! substrate lower ! substrate crystal ! blank ! 10mhz ! 3rd ot ! vo l t a g e ! regulator +vcc ! pre-heating ! 60 to 90 sec. ! @ 140oc to 160oc reflow ! 40 to 60 sec. ! @ >183oc temperature ( o c) pin function 1 frequency control 2 gnd, case 3 output 4 supply pin numbers are for reference only, they do not appear on unit. ex-380/385 ex = emxo ocxo 8798_aa's vectron 05/30/02 3:11 pm page 41
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