electronics 10 commerce drive, new rochelle, ny10801 ? 914-576-6570 ? fax: 914-576-6204 ? http://www.mfelectronics.com ? email:mfsales@mfelec.com voltage controlled oscillators pecl, 0 to 70? 1 full size d.i.l. m2911 thru m2913 double wide d.i.l. w2911 thru W2913 w2971 thru w2973 these vcxo s provide complementary ecl outputs thru 175 mhz with extremely fast rise and fall times. each oscillator is computer tuned and computer tested to guarantee stability and frequency pull at 0, 25 and 70 degrees c. all oscillators will capture the rated pull at all operating temperatures. used in sonet st33 interface for generation of the transmitter data clock. will drive standard interface chips in complementary ecl. duty cycle is typically 48/52 three frequency deviation choices. output is ecl with typical rise and fall times of 225 ps. exceptional linearity with deviation sensitivity ratio not exceeding 2.0. package is choice of double dil, standard dil with 7 pins (m1) load all outputs must be loaded with 270 ohms to ground, or 50 ohms to +3v. compatibilty outputs will drive all ecl families when they are operated in pecl configurations. 0.98 max (24.89) 0.80 max (20.32) 0.275 max (6.99) square corner indicates pin 1 0.20.24 (0.51/.61 0.20/0.30 (.50/.76) pin 1 0.600 .005 centrally located glass insulators (3) 8 9 16 .016/.019 dia (.41/.48), 16 pins .100 typ (.025) 0.700 .005 (17.78 .13) centrally located ?1?package thru-hole, 5v eclps complementary output 15 mhz to 175 mhz eclps complementary thru-hole vcxos, 5v these eclps vcxos feature super-low jitter of 20 ps peak-to-peak . they are based on the same logic as our m2900s fixed frequency oscillators, and therefore exhibit identical wave- form characteristics. these thru-hole vcxos are designed for compatibility with digital and communications systems based on the eclps family of high speed ecl logic. users have a choice of the three most widely used combinations of pull, control voltage and center frequency deviation. the oscillators are available at frequencies from 15 to 175 mhz. standard frequency stability is ?0 ppm. all models have dual complementary outputs. all feature 250 ps typical rise/fall times and pro- vide superior jitter. their low output impedance and dual complementary outputs preserve waveform symmetry when sending the timing waveforms over appreciable distance. output symmetry of 45/55 is standard. designed originally for advanced sonet applications, their combination of advanced characteristics provides special appeal to designers of highly evolved phase-locked-loop circuits. they provide tight control of the voltage-to-frequency ( ? f/ ? v) transfer function and feature jitter specifications of less than 20 picoseconds peak-to-peak. typical rmsjitter is 2.048 ps rms. these vcxos are hermetically sealed in full size (h) or wide (w) dil packages. models w2911 through W2913 accept control voltage input on pin 1, while models w2971 through w2973 accept control voltage on pin 6. all models are tested and guaranteed over full 0? to 70? temperature. ?-1?package dot denotes pin 1 pin 1 .068/025 100 typ (non accumulative) .20 max .20 min. .300 .005 150 .500 .005 .800 .005 .300 .005 44 max 257 14 9 8 super-low jitter 20 ps peak-peak 4 .com u datasheet
electronics 10 commer ce drive, new rochelle, ny10801 ? 914-576-6570 ? fax: 914-576-6204 ? http://www .mfelectr onics.com ? email:mfsales@mfelec.com vol t age controlled oscilla tors pecl, 0 to 70 c thr u-hole, 5v eclps complementar y output 15 mhz to 175 mhz super -low jitter 20 ps peak-to-peak 2 specifica tions t emperatur e operating 0 to 70 c min. typ max units input v oltage, v dd 4.5 5.0 5.5 volts input cur r ent, including load cur r ent of both ouputs at 4.5v 60 ma at 5.0v 68 ma at 5.5v 76 ma output levels (pecl), at 5.0 v dd ??level, 3.2 3.37 volts ??level, 4.02 4.1 volts symmetr y dif fer ential 48/52 45/55 input impedance 50 1000 kohms contr ol v oltage bandwith 10 20 khz fr equency stability contr ol v oltage, v c 0 0.5 to 4.5 15 v olts, dc jitter , with t ektr onix 11801b & sd22 head in jitter color mode 15 20 ps, pk-pk linearity , best straight line, per cent of total 5 10 % rise t ime (20 to 80%) 100 225 350 ps fall t ime (20 to 80%) 100 225 350 ps full size d.i.l. m2911 thr u m2913 double wide d.i.l. w2911 thr u W2913 w2971 thr u w2973 one dil wide, m1 package contr ol fr equency fr equency deviation v oltage stability for nominal @ model (center) fr eq. center 0.5 volts 4.5 volts m2911 -50 to -100 ppm 50 to 100 ppm m2912 2.5 volts 20 ppm -75 to -150 ppm 75 to 150 ppm m2913 -100 to -200 ppm 100 to 200 ppm double dil wide, w1 package v oltage v oltage contr ol fr equency fr equency deviation contr ol contr ol v oltage stability on on for nominal @ pin 1 pin 6 (center) fr eq. center 0.5 volts 4.5 volts w2911 w2971 -50 to -100 ppm 50 to 100 ppm w2912 w2972 2.5 volts 20 ppm -75 to -150 ppm 75 to 150 ppm W2913 w2973 -100 to -200 ppm 100 to 200 ppm connections pin used for pin used for all single 1 contr ol v oltage input, v c 8 output 1 dil models 2 not used 9 output 2 (complement) 5 not used 14 +5v , v dd 7 gr ound, v ss w2911- 1 contr ol v oltage input 9 output 1 W2913 2 not used 10 output 2 3 not used 11 not used 4 not used 12 not used 5 not used 13 not used 6 not used 14 not used 7 not used 15 not used 8 gr ound, v ss 16 +5v , v dd w2971- 1 not used 9 output 1 w2973 2 not used 10 output 2 3 not used 11 not used 4 not used 12 not used 5 not used 13 not used 6 contr ol v oltage input, v c 14 not used 7 not used 15 not used 8 gr ound, v ss 16 +5v , v dd mechanical specifica tions shock 1000 g s, 0.35 ms. 1/2 sine wave, 3 shocks in each plane v ibration 10-2000 hz of .06?d.a. or 20 g s, whichever is less humidity resistant to 85% rh at 85 c gr oss leak each unit is checked in 125 c flour ocarbon fine leak mass spectr ometer leak rate less than 2 x 1 0 -8 atmos, cc/sec of helium pins kovar , with 7 micr oinch gold over nickel bend t est w ill withstand two bends of 90 fr om r efer ence header steel with gold over nickel case stainless steel, type 304 marking resistant to 85% rh at 85 c resistance to solvents mil std 202, method 215 storage t emperatur e -55 to +125 c environment al specifica tions t emperatur e cycle ?not to exceed 5 ppm change when exposed to 2 hours maximum at each temperatur e fr om 0 to 120 c, with 25 c r efer ence shock ?1000 g's, 0.35 ms, 1/2 sine wave, 3 shocks in each plane v ibration ?10-2000 hz of .06" d.a. or 20 g's, whichever is less humidity ?resistant to 85 r.h. at 85 c 4 .com u datasheet
electronics 10 commer ce drive, new rochelle, ny10801 ? 914-576-6570 ? fax: 914-576-6204 ? http://www .mfelectr onics.com ? email:mfsales@mfelec.com vol t age controlled oscilla tors pecl, 0 to 70 c thr u-hole, 5v eclps complementar y output 15 mhz to 175 mhz super -low jitter 20 ps peak-to-peak 3 how to order for par t number , put package type befor e model number , and add fr equency in mhz, for example: ??is full size dil ??is double wide dil ?912 is model type m 2912 - 77.76 m ?7.76 m frequency in mhz full size d.i.l. m2911 thr u m2913 double wide d.i.l. w2911 thr u W2913 w2971 thr u w2973 w avefor ms taken on tek 11801b with sd-22 head fig. 1: 155.52 mhz pecl oscillator , showing steep rise and fall times and excellent duty cycle. levels have 900 mv dif fer ence between ??and ?? fig. 2: m2912-77.76 mhz oscillator with expan - sion of transition at 3.7 volts. jitter is shown by the histogram of the distribution of the wave - for m at 3.7 volts. the distribution is unimodal, with peak-to-peak jitter of 16 ps peak-to-peak, and 2.27 ps rms. 4 .com u datasheet
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