product data sheet features smallest ocxo available (< 1 cm 3 , 2g weight) sc - cut crystal high vacuum sealed enclosure extremely low power consumption (<100 mw) very fast warm - u p time (30s) low cost low aging (5x10 - 10 /day, 5x10 - 8 /year) very low phase noise ( - 160dbc/hz typ) hcmos/ttl output ?gull - wing? smd version available 4.8 mhz to 50 mhz frequencies available ?half - size?, dil - 8 compatible pinout applications telecommunicat ions data communications battery powered systems and equipment gps instrumentation sarsat beacons smd reflow profile 0 50 100 150 200 250 0 50 100 150 200 time, s temperature, c vref 0.1k 10k 4 dut 2 vc 8 1 vcc output 5 8 4 0.670 (17,0mm) ? 0.580(14,3mm) ? 0.018 (0,45mm) 0.300 (7,62mm) 0.25 (6,35mm) min 2 5 1 0.300 (7,62mm) ? 0.500(12,7mm) 0.395 (10,0mm) 0.100 (2,54mm) smd version 0.600 (15,2mm) 0.48 (12,2mm) 1 2 4 5 8 vft8s series micro - miniature, evacuated 75 south street, hopkinton, ma 01748 800 - 982 - 5737 508 - 435 - 6831 fax 508 435 - 5289 www.valpeyfisher.com
specifications: parameter symb condition min typ max unit note absolute maximum ratings input break down voltage vcc - 0.5 13.0 v storage temper. ts - 40 85 c control voltage vc - 1 9 v ele ctrical frequency f 4.8 10.000 50 mhz vs. temp. 100 ppb see chart below vs. supply 1 5 ppb/v frequency stability d f/f calibration 0.5 ppm no vcxo aging per day per year 1e - 9 1e - 7 after 30 days allan variance .1s to 10s 1e - 11 ssb phase noise 10 hz 100 hz 10 khz - 120 - 145 - 160 dbc /hz deteriorates by 20logn at higher frequencies retrace after 30 minutes 20 ppb g - sensitivity worst direction 1.0 ppb/g all parameters for 10 mhz input voltage vcc 4.75 5.0 5.25 v 3.3v5% optional input current icc steady state, 25c steady state, - 30c start - up current 25/35 70/120 130/150 35/40 ma 5v/3.3v supply load 10kohm//15pf warm - up time t to 0.1ppm accuracy 35 s output waveform hcmos/ttl compatible * control voltage vc 0 4.0 2.8 v for 3.3v supply * pull range from nominal f 0.3 0.5 ppm * deviation slope monotonic, posit 0.15 ppm/v * setability vc0 @25c, fnom. 1.0 . 8 2.0 1.4 3.0 2.0 v environmental and mechanical operating temp. range - 30c to 70c standard, other options ? see chart below mechanical shock per mil - std - 202, 30g, 11ms vibration per mil - std - 202, 5g to 2000 hz soldering conditions leads tempe rature 260c, for 10s, max, 230c for 30s max smd profile hermetic seal leak rate less than 1x10 - 8 atm.ccm/s of helium electrical connections pin out pin 1 - vc ; pin 2 - vref; pin 3 - n/c; pin 4 - case, gnd; pin5 ? output; pin 8 - vcc creating a part number vft8s frequency, mhz temperature range code specification a 0c to 50c b - 10c to 60c c 0c to 70c d - 20c to 70c e - 30c to 70c f - 40c to 85c temperature stability code specificati on 57 5x10 - 7 27 2.8x10 - 7 17 1x10 - 7 58 5x10 - 8 28 2x10 - 8 yz yx10 - z aging code specification l 1x10 - 9 /day s 5x10 - 10 /day supply voltage code specification 5 5v 5% 3 3.3v 5% not all combinations are available. consult factory. * - optional ?v? for vcxo s for smd rev 11/05 vft8s series micro - miniature, evacuated 75 south street, hopkinton, ma 01748 800 - 982 - 5737 508 - 435 - 6831 fax 508 435 - 5289 www.valpeyfisher.com
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