crystal oscillators (xo s) xo-400 performance characteristics vectron international 267 lowell road, hudson, nh 03051 tel: 1-88-vectron-1 web: www.vectron.com description: v ectron international has introduced a series of low cost complementary pecl crystal oscillators (xo s) available in frequencies from 15 mhz to 250 mhz in a standard 4 pin dip package. this series offers ultra low jitter of <0.5 ps rms from 12 khz to 20 mhz bandwidth. features: ?ultra low jitter ?3.3 vdc or 5 vdc operation ?complementary pecl output ?standard 4 pin dip package frequencies: 15 mhz to 250 mhz package size: 20.32 x 12.70 x 10.29 mm (0.8 x 0.5 x 0.405 ) supply voltage: c = 5 vdc 5% d = 3.3 vdc 5% supply current: <80 ma output type: complementary pecl output level: v oh ( 1 ) = vcc - 1.02v min. @ +25 cv ol ( 0 ) = vcc - 1.63v max rise/fall time t r /t f : <1.5 ns (20% to 80%) symmetry (duty cycle): 50/50 5% @ vcc - 1.3v for d ; vcc - 3v for c internal load: 274 ohm internal load for each output for 3.3 vdc, 510 ohms for 5vdc temperature stability: c-c = 20 ppm all causes over 0 c to +70 c c-f = 32 ppm all causes over 0 c to +70 c c-g = 50 ppm all causes over 0 c to +70 c f-g = 50 ppm all causes over -40 c to +85 c all causes = entire temperature range, aging for 10 years initial accuracy and supply variation. jitter: <0.5 ps rms from 12 khz to 20 mhz bw @ 155.52 mhz parameter characteristics 68 8798_aa's vectron 05/30/02 3:11 pm page 68
crystal oscillators (xo s) xo-400 outline drawing ordering information 1 complementary output 7 case, ground 8 output 14 supply voltage (vcc) frequency application 19.4400 mhz sonet 38.8800 mhz sonet 51.8400 mhz oc-1 77.7600 mhz sonet 78.1250 mhz 10g / 128 125.0000 mhz fddi 139.2640 mhz 155.5200 mhz oc-3, sdh, stm1 156.2500 mhz 10g/64 161.1328 mhz 10.3125 g/64 166.6286 mhz oc-3 fec 15/14 167.3316 mhz oc-3 fec 255/237 175.0000 mhz 177.7371 mhz oc-3 fec 8/7 xo output frequency see standard frequencies chart above. 400 f d c c 155.52 product family xo = clock oscillator package 400 = 4 pin dip supply v oltage c = 5.0 vdc 5% d = 3.3 vdc 5% output f = complementary pecl mhz t emperature stability c-c = 20 ppm all causes 0 c to +70 c c-f = 32 ppm all causes 0 c to +70 c c-g = 50 ppm all causes 0 c to +70 c f-g = 50 ppm all causes -40 c to +85 c note: other stabilities are available upon request pin out information vectron international 267 lowell road, hudson, nh 03051 tel: 1-88-vectron-1 web: www.vectron.com standard frequencies (in.) 1 7 8 14 .002) .051 dia (.200) 5.08 69 xo 8798_aa's vectron 05/30/02 3:11 pm page 69
|
