frequency control products type dfn s2 siv revision 03 checked ne date 10.10.2004 page 13 stratum iv smd miniature precision oscillator dfn s2-k (5 v) & dfn s2-l (3.3 v) key features 2 to 80 mhz stratum iv compliant over -40 to 85c applications stratum iv and ive function dfn s2 enable/disable 1 gnd 2 output 3 vcc 4 type dfn s2-khz dfn s2-lhz frequency range 2 to 80 mhz 2 to 80 mhz standard frequencies 12.8; 16.384; 19.44; 20; 38.88; 34.368; 44.736; 51.84 & 77.76 mhz electrical specifications supply voltage 5 v 5 % 3.3 v 5 % supply current (no load) 25 mhz 20 ma 10 ma 70 mhz 40 ma 15 ma > 70 mhz 70 ma 35 ma output load hcmos 50 pf or 10 ttl 25 mhz hcmos 15 pf hcmos 15 pf > 25 mhz duty cycle 40/60...60/40 % @ 50% level 40/60...60/40 % @ 50% level rise/fall times (hcmos @ 15 pf load) 10 to 90 % 7 ns up to 25 mhz 10 to 90 % 7 ns up to 25 mhz 3 ns > 25 mhz 3 ns > 25 mhz high/low levels 4.5 v/ 0.5 v 2.8 v/ 0.3 v jitter rms (1 khz to 20 mhz) 1 ps rms ( f= 50 mhz) 1 ps rms (f = 50 mhz) tri-state output on pin 1 high or open = enable, low = high z high or open = enable, low = high z start up 10 ms @ 4.5 v 10 ms @ 3.15 v frequency stability detailed tolerances [ ppm ] type temperature model stability versus: overall calibration range code temperature vcc 5 % ageing stability @ 25c telcordia gr-1244 core stratum iv or ive all types 0 to 70c xb32d 15 typ. 1.5 typ. 10 typ. over 20 years 32 over 20 years 5 typ. -20 to 70c xc32d -40 to 85c xe32d options code tight symmetry (f 50 mhz) r 45/55...55/45 % ordering code type + option code + frequency + temperature code example dfn s2-lhz 19.44 mhz xc32d pc board footprint 4 3 1 5.08 3.20.2 2.4 1.4 2.0 5.30.1 7.20.2 5.08 0.9 2
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