frequency control products type dfn s1-kec(g)pi & lec(g)pi revision 03 checked ne date 11.10.2002 page 17 surface mount precision oscillator dfn s1-kec/keg (5 v) & dfn s1-lec/leg (3.3 v) key features 16 to 400 mhz 20 ppm/15 years stability available 1 ps rms jitter over 50 khz to 80 mhz b.w. applications sonet/sdh/datacomms pin dfn s1-kec / lec dfn s1-keg / leg 1 output 2 nc 2 e / d e / d 3 gnd gnd 4 output 1 output 1 5 nc output 2 6 vcc vcc type dfn s1-kecpi/kegpi dfn s1-lecpi/legpi frequency range 16 to 400 mhz 16 to 400 mhz electrical specifications supply voltage 5 v 5 % 3.3 v 5 % supply current (no load) 70 ma 60 ma output load pecl 100 k ( 50 ? to 3 v ) lvpecl 100 k ( 50 ? to 1.3 v ) duty cycle @ 50% level 45/55...55/45 % ( 0 to 70c ) 45/55...55/45 % 40/60?60/40 % ( -40 to 85c ) rise/fall times ( 20 to 80% ) 0.5 ns 0.5 ns high/low levels 3.92 v/ 3.45 v 2.22 v/ 1.7 v jitter rms ( 12 khz to 5 mhz ) 0.5 ps 0.5 ps jitter rms ( 50 khz to 80 mhz ) 1 ps ( f = 155.52 mhz ) 1 ps ( f = 155.52 mhz ) enable / disable on pin 2 low or open = enable, high = disable low or open = enable, high = disable complementary output on pin 1 180 phase shifted 180 phase shifted start up 10 ms @ 4.75 v 10 ms @ 3.15 v frequency stability stability [ ppm ] and temperature code types temperature range stability code st ability code stability code stability code 0 to 70c 20 xb20 25 xb25 50 xb50 100 xb100 all types -40 to 85c 25 xe25 50 xe50 75 xe75 100 xe100 remark includes calibration at 25c, temperature, ageing, vcc and load changes 1 st year options code pin out option g complementary output on pin 5 stability over long life time a = 5 years b = 10 years c = 15 years d = 20 years ordering code type + option code + frequency + stability / temperature code example dfn s1-lecpi 155.52 mhz xb20 remark please consult factory for life time/stabilities and frequency/stabilities possible combinations 9.10.2 14.80.3 1.4 1.0 5.08 6 5 4 3 2 1 5.9 +0.1 -0.2 2.54 8.9 5.08 1.27 pc board footprint marking: kec/lec version: dfn s1-ke/le frequency code yrwk keg/leg version: dfn s1-keg/leg frequency code yrwk
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