1 s1903 and s1950 series 3.3v and 5v acmos/ttl, high frequency crystal clock oscillator (xo) ds 187 rev f | 04/15/05 pericom semiconductor corporation ? 1-800-435-2336 ? http://www.pericom.com/saronix all specifications are subject to change without notice. product features ? 3.3v or 5v acmos/ttl compatible logic levels ? very tight frequency stability available ? fast clock edge rate ? pin-compatible with standard 5x7mm packages ? designed for standard reflow and washing techniques ? pb-free and rohs/green compliant product description the s19xx series is a 3.3v or 5v crystal clock oscillator that achieves superb stability and fast rise/fall edges over a broad range of operating conditions and frequencies. the output clock signal, generated internally with a pll oscillator design, is compatible with acmos/ttl logic levels. the device, available on tape and reel, is contained in a 5x7mm surface- mount ceramic package. applications the s19xx series is an ideal reference clock for high- speed applications requiring tight stability, including: ? t1 / e1 line cards ? t3 / e3 line cards ? network processors ? industrial controls common frequencies contact saronix for additional frequencies 32.7680 mhz 35.3280 mhz 38.8800 mhz 40.0000 mhz 44.7360 mhz 45.0000 mhz 48.0000 mhz 49.1520 mhz 54.0000 mhz 60.0000 mhz 61.4400 mhz 66.0000 mhz 76.8000 mhz 77.7600 mhz 80.0000 mhz 90.0000 mhz 98.3040 mhz 108.0000 mhz 120.0000 mhz 122.8800 mhz ordering information packaging outline actual size = 5 x 7mm pin functions pin function 1 oe function 2 ground 3 clock output 4 v dd ??????????????????? ?????????????????????????? ????????????????????????? ????????????????????????? ?????????????????????????? ?????????????????????????? ?????????????????????????? ???? ?? ? ????????????? ? ? ? ?????????????? ????????????????? ??? ?? ? ? ??? ????? ???? ? ???????? ?????? ??? ????????????????????????? ????????????????????? ????????????????????????????????? ???????????????????????????? ? ? ? ????? ? ? ????? ? ? ? ? ? ?? ?????? ? ? 7 . 0 0 . 2 . 2 7 6 . 0 0 8 5 . 0 0 . 2 . 1 7 9 . 0 0 8 1 . 8 . 0 7 1 m a x 1 4 3 2
2 ds 187 rev f | 04/15/05 s1903 and s1950 series 3.3v and 5v acmos/ttl, high frequency crystal clock oscillator (xo) pericom semiconductor corporation ? 1-800-435-2336 ? http://www.pericom.com/saronix all specifications are subject to change without notice. electrical performance parameter min. typ. max. units notes output frequency (s1903) 32 125 mhz as specifed output frequency (s1950) 80 125 mhz as specifed supply voltage +2.97 +3.3 +3.63 v supply current (s1903) 35 ma supply current (s1950) 35 50 ma frequency stability 20 to 50 ppm see note 1 below operating temperature -40 +85 c as specifed output logic 0, vol (s1903) 20% v dd v output logic 0, vol (s1950) 10% v dd v output logic 1, voh 80% v dd v output load (s1903) 95 ? ac (acmos) output load (s1950) 50 ? ac (acmos) duty cycle (s1903) 45 55 % -40 to +85c measured 50%vdd duty cycle (s1950) 40 60 % -40 to +85c measured 50%vdd or 1.5v duty cycle (s1950) 45 55 % 0 to +70c measured 50%vdd rise and fall time 2 ns measured 20/80% of waveform jitter, total 80 ps pk-pk up to 72 mhz jitter, total 120 ps pk-pk >72 mhz 0 to 70c jitter, total 150 ps pk-pk >72 mhz -40 to +85c notes: 1. as specifed. stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25c), aging (1 year at 25c average effective ambient temperature), shock and vibration. output enable / disable function parameter min. typ. max. units notes input voltage (pin 1), output enable 2.2 v or open input voltage (pin 1), output disable 0.8 v output is hi-z internal pullup resistance 50 k output disable delay 100 ns output enable delay 100 ns
3 ds 187 rev f | 04/15/05 s1903 and s1950 series 3.3v and 5v acmos/ttl, high frequency crystal clock oscillator (xo) pericom semiconductor corporation ? 1-800-435-2336 ? http://www.pericom.com/saronix all specifications are subject to change without notice. typical phase noise
4 ds 187 rev f | 04/15/05 s1903 and s1950 series 3.3v and 5v acmos/ttl, high frequency crystal clock oscillator (xo) pericom semiconductor corporation ? 1-800-435-2336 ? http://www.pericom.com/saronix all specifications are subject to change without notice. test circuit absolute maximum ratings parameter min. typ. max. units notes storage temperature -55 +125 c supply voltage +7 v ? ????? ?????? ???????????????????????????????? ????? ?? ?????? ? ????????? ? ? ? ? ??????? ?????????????? ????????? reliability test ratings this product is rated to meet the following test conditions: type parameter test condition mechanical shock mil-std-883, method 2002, condition b mechanical solderability jesd22-b102-d method 2 (preconditioning e) mechanical terminal strength mil-std-883, method 2004, condition d mechanical gross leak mil-std-883, method 1014, condition c mechanical fine leak mil-std-883, method 1014, condition a2 (r 1 = 2x10 -8 atm cc/s) mechanical solvent resistance mil-std-202, method 215 environmental thermal shock mil-std-883, method 1011, condition a environmental moisture resistance mil-std-883, method 1004 environmental vibration mil-std-883, method 2007, condition a environmental resistance to soldering heat j-std-020c table 5-2 pb-free devices (2 cycles max)
5 ds 187 rev f | 04/15/05 s1903 and s1950 series 3.3v and 5v acmos/ttl, high frequency crystal clock oscillator (xo) pericom semiconductor corporation ? 1-800-435-2336 ? http://www.pericom.com/saronix all specifications are subject to change without notice. refow soldering profle output waveform v o l v o h 5 0 % 2 0 % 8 0 % t f t r d u t y c y c l e = 1 0 0 % x ( t a ) / ( t a + t b ) t a t b p e a k 2 6 0 c f o r 1 0 s e c m a x 2 6 0 t e m p e r a t u r e C c 1 t o 3 c / s e c m a x 6 0 t o 9 0 s e c t i m e 1 t o 3 c / s e c 2 1 7 4 t o 6 m i n u t e s m a x as per ipc/jedec j-std-020c
6 ds 187 rev f | 04/15/05 s1903 and s1950 series 3.3v and 5v acmos/ttl, high frequency crystal clock oscillator (xo) pericom semiconductor corporation ? 1-800-435-2336 ? http://www.pericom.com/saronix all specifications are subject to change without notice. mechanical drawings marking line 1: s x x (saronix, model (d=s1903, h=s1950), stability code) marking line 2: frequency (frequency code) marking line 3: y y ww x (pin 1, year, week, origin) scale: none. dimensions are in mm/inches. recommended land pattern* *external high-frequency power decoupling is recommended.(see test circuit for minimum recom - mendation). to ensure optimal performance, do not route traces beneath the package. 1 . 8 . 0 7 1 4 . 4 . 1 7 3 5 . 0 8 . 2 0 0 2 . 4 . 0 9 4 2 . 0 . 0 7 9 7 . 0 0 . 2 . 2 7 6 . 0 0 8 5 . 0 0 . 2 . 1 7 9 . 0 0 8 1 . 8 . 0 7 1 m a x 1 . 4 . 0 5 5 1 4 3 2 5 . 0 8 . 2 0 0 1 . 2 . 0 4 7 1 . 6 . 0 6 3 2 . 6 2 . 1 0 3 **exact location of markings may vary.
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