frequency control products web site : http://www.fordahl.com low cost miniature dil 14 package tcxo types dfa 14-k (5 v) & dfa 14-l (3.3 v) standard miniature dil 14 package wide temperature range high frequency stability option y function dfa 14 nc/pot in/vco 1 gnd 7 output 8 vcc 14 h = 8.50 mm type dfa 14-kh dfa 14-ko dfa 14-lh dfa 14-lo frequency range 2 to 52 mhz 2 to 52 mhz 2 to 39 mhz 2 to 39 mhz electrical specifications supply voltage 5 v 5 % 5 v 5 % 3.2 v to 3.6 v 3.2 v to 3.6 v supply current ( no loa)d 25 mhz 10 ma 5 ma 5 ma 5 ma 35 mhz 20 ma 20 ma 15 ma 15 ma > 35 mhz 30 ma 30 ma 20 ma 20 ma hcmos 15 pf clipped sine hcmos 15 pf clipped sine output load or 2 ttl 20k ? //5 pf or 1 ttl 20k ? //5 pf duty cycle @ 2.5v (lh @ 1.65 v) 45/55...55/45 % 45/55...55/45 % rise/fall times (10 to 90 %) 10 ns 10 ns high/low levels or output amplitude 3.5 v/ 0.5 v 2 v p-p 2.7 v/ 0.2 v 1.5 v p-p start-up 10 ms @ 4.75v 10 ms @ 4.75v 10 ms @ 3.2v 10 ms @ 3.2v remarks duty cycle for frequencies > 30 mhz is 40/60%?60/40% frequency stability detailed tolerances [ ppm ] temperature model stability versus : type range code temperature vcc range load 10 % ageing -10 to 60c d1 1 c1 1 -20 to 70c c2 2 all types -30 to 75c n2 2 0.1 0.1 1 e5 5 e3 3 dfa 14-k types -40 to 85c e2 2 0.1 0.1 1 factory calibration if no trimming option 1 ppm ageing is 1 st year at 25c remarks dfa s7-l : vcc range 0.3 ppm ( f 30 mhz ) options code dfa 14-k : 2.5 v 2 v 5 ppm, positive slope external voltage control v dfa 14-l : 1.5 v 1.5 v 5 ppm, positive slope internal trimmer a 5 ppm external potentiometer y 10 k ? 5 ppm (not available with internal trimmer) ordering code type + option code + frequency + model code example dfa 14-khav 8.192 mhz e2 10k pot i n g nd 12. 7 0. 1 20.3 0.1 h 0. 1 7.62 15. 24 pin 1 0.45 6.3 0.75 0.1
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