temperature compensated crystal oscillators (tcxo) surface mount type tcxo (lsi type) KT7050 series for femtocell/ stratum3 features ? high stability and high reliability ? 2.7 to 5.5v drive available ? clipped sine wave or cmos level output ? low phase noise ? disable function (KT7050a) applications ? femtocell, stratum3 ? sonet/ sdh/ ethernet ? compliant to the gr1244-core & gr253-core ? recommended in microsemis zlan - 68 app. note for stratum3 applications based on tests performed by kyocera. how to order for femtocell (standard spec.) freq. temp. chrst. : 0.1 10 - 6 / - 10 c to 70 c KT7050 a 20000 a g t 33 t xx for stratum3 (standard spec.) freq. temp. chrst. : 0.28 10 - 6 / - 40 c to 85 c KT7050 a 20000 k a w 33 t xx series land type a 10pads b 4pads output frequency freq. temp. chrst. a + 0.1 10 - 6 k 0.28 10 - 6 lower operating temp. a - 40 c g - 10 c j 0 c upper operating temp. t + 70 c w + 85 c supply voltage 33 3.3v voltage control range t tcxo other * vctcxo * customer spec. option code packaging (tape & reel 1000 pcs./ reel) specifications item symbol conditions min. max. units output frequency range fo standard frequency: 10, 12.8, 19.2, 19.44, 20, 20.48, 24.576, 26, 30.72 10 40 mhz frequency tolerance f _tol vs temperature ( - 10 to + 70 c) [ (fmax-fmin)/ 2fo] - 0.1 + 0.1 10 - 6 vs temperature ( - 40 to + 85 c) [ (fmax-fmin)/ 2fo] - 0.28 + 0.28 vs voltage - 0.1 + 0.1 supply voltage v cc + 2.7 + 5.5 v current consumption i cc 20mhz cmos output 5 ma frequency aging f _age 20years aging @40 c including temp characteristics, initial tolerance, rated power supply voltage change and load change. - 4.6 + 4.6 10 - 6 voltage control range f _cont positive * 100k ohm min 5 20 10 - 6 output level vpp clipped sine, load: 10k ohm // 10pf 0.8 vp-p low level output voltage v ol cmos, load: 15pf i ol = 4ma 10% v cc v high level output voltage v oh cmos, load: 15pf i oh =- 4ma 90% v cc v rise / fall time (10%vcc to 90%vcc) tr/ tf cmos, load: 15pf 5 ns symmetry sym 50% vcc 45 55 % phase noise @20mhz - 90 (@10hz offset) - 120 (@100hz offset) - 140 (@1khz offset) - 150 (@10khz offset) - 150 (@100khz offset) dbc/ hz dimensions (unit: mm) marking area KT7050a 7.00.2 5.00.2 1.7 max. #3 #5 #4 #2 #1 #6 #7 #8 #10 #9 pin connection #1 do not connect (pin1) #2/3 do not connect #4 gnd #5 output #6/7 do not connect #8 tri-state enable/ disable connect #9 vcc #10 voltage control (vctcxo), gnd (tcxo) #1 #9 #10 #2 #3 #8 #7 #6 #4 #5 6?0.6 4?1.0 4?0.8 6?0.8 2.54 5.08 1.27 KT7050b 7.00.2 5.00.2 #3 #4 #2 #1 marking area 1.7 max. pin connection #1 voltage control (vctcxo), gnd (tcxo) #2 gnd #3 output #4 vcc #1 #2 5.08 4?1.4 #4 #3 4?0.9 5.08 1.5 1.2 4.20 2.54 0.75 1.3 7.45 gnd 0.95 1.8 1.3 5.45 recommended land pattern (unit: mm) rohs compliant
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