cmos / 2.5v / 3.2 2.5 a clock crystal oscillators surface mount type k25-2c series features ?miniature ceramic package ?highly reliable with seam welding ?cmos output ?supply voltage v dd =2.5v ? 25ppm available table 1 how to order dimensions specifications (unit : mm) recommended land pattern (unit : mm) note: please contact us for inquires about extended operating temperature range, available frequencies and other conditions. all electrical characteristics are defined at the maximum load and operating temperature range. item symbol conditions min. max. units overall conditions: initial tolerance, operating temperature range, rated power supply voltage change, load change, aging(1year @25 c), shock and vibration k25-2c 0 - s e 25.0000 w qert q type(3.2 2.5 smd, 2.5v) w frequency stability code(see table1) e duty ratio(s: 45% to 55% std) r enable/disable function(std) t oscillation frequency(ex.: 25.0000mhz) packaging(tape & reel 2,000pcs/reel) stability t opr note code (ppm) ( c) 0 50 standard specifications s 30 ? 10 to + 70 u 25 ( std ) f 100 ? 40 to + 85 g 50 ( extend ) with only certain frequencies with only certain frequencies output frequency range frequency stability storage temperature range operating temperature range max. supply voltage supply voltage current consumption(maximum loaded) standby current duty ratio(symmetry) rise/fall time (10% v dd to 90% v dd maximum loaded) output voltage -"l" output voltage -"h" output load input voltage range input voltage -"l" input voltage -"h" output disable time output enable time start-up time f out 1 50 mhz ? 25 + 25 f sby ? 30 + 30 ppm ? 50 + 50 t stg ? 55 + 125 t opr standard ? 10 + 70 c extend(option) ? 40 + 85 ----- ? 0.5 7.0 v dd stability: 50ppm, 30ppm, 100ppm(ext temp) 2.38 2.62 volt stability: 25ppm, 50ppm(ext temp) 2.43 2.57 i dd @50mhz ----- 6 m a i st standby function ----- 1 0 a sym @50% v dd 45 55 % tr/tf ----- 5 n s v ol i ol = 4ma ----- 10% v dd volt v oh i oh =? 4ma 90% v dd ----- cl cmos ----- 1 5 p f v in 0 v dd volt v il ----- 30% v dd volt v ih 70% v dd ----- ----- ----- 150 ns ----- ----- 5 m s st @minimum operating voltage to be 0sec. ----- 1 0 m s 2.2 0.95 1.75 1.2 note: a capacitor of value 0.01 f between v dd and gnd is recommended. 1.0max(typ0.89) 0.9 1.0 3.2 0.1 2.5 0.1 0.67 1.0 plating:ni + au tolerance: 0.2 pin connevtions q control w case gnd e output r v dd enable/disable function pad1 pad3(output) open active "h" level active "l" level high z(no-osillation) q w r e pb free rohs conforming
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