357 beloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone 262/763-3591 fax 262/763-2881 email: nelsales@nelfc.com www.nelfc.com data sheet 0629e crystal clock oscillators lvds uhf vcxo SD-X3DBXXX-X series rev. j description the sd-x3dbxxx series of voltage controlled crystal osc illators (vcxo) provides ultra high frequency with lvds complementary output. the out puts can be tri-stated for test automation or combining multiple clocks. the device is based on low noise analog harmonic multiplication for higher frequencies, and packaged in a miniature, low profile lead less ceramic smd package with 6 gold plated pads. applications and features ? wide frequency range ? 60.0mhz to 312.500mhz ? fiber channel; 10 gbe; infiniband; network processors; soho routing ? high reliability ? nel halt/hass qualified fo r crystal oscillator start-up conditions ? low phase noise and jitter ? high shock resistance, to 1000g ? ultra high frequency ? absolute pull range (apr) to 100 ppm ? grounded lid and internal by-pass capacitor reduce emi ? cots/dual use creating a part number sd - x 3db x x x - x - freq package code sd 6 pad 5x7mm smd operating voltage a - 3.3 v 5% temperature range, oc a ? 0 to 50 b - 0 to 70 c - -20 to 70 d - -40 to 85 9 ? customer specific absolute pull range, ppm e 20 f 32 g 50 h 100 9 customer specific enable option h enable high l enable low n no enable/disable environmental l contains a level of lead that is in cxcess of rohs directive and is not designed for reflow r rohs compliant
357 beloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone 262/763-3591 fax 262/763-2881 email: nelsales@nelfc.com www.nelfc.com data sheet 0629e crystal clock oscillators SD-X3DBXXX-X series lvds uhf vcxo rev. j absolute maximum ratings p a r a m ete r sy m bo l va l ue u ni t o p eratin g tem p erature ran g e to -40 to +85 oc stora g e tem p erature ran g e ts t -50 to +90 oc su pp l y volta g e vcc -0.5 to 4.5 v enable/disable volta g e ven/dis 0 to vcc v electrical parameters (2) parameter symb conditions, note min typ max unit no min a l fr eque n cy f o 60 3 12 .500 mhz supply voltage vcc code a 3.135 3.3 3.465 v supp l y cu rr e n t i cc 6 0 70 ma output l og i c t ype l v d s load at receiving end between the outputs 90 100 110 ohm output l eve l s vod diff e r e n t i a l a m p li tude 24 7 330 4 5 4m v am p li tude e rr o r 50 m v vo f o ff set vo l tage 1 . 12 5 1 . 2 5 1 .375 v o ff set vo l tage e rr or 50 m v duty cycle (symmetry) at outputs crossing, room temperature 45/55 50/50 55/45 % ri se/ f a ll tim e tr / tf 2 0 to 80, 80 to 2 0 % 0.5 0.7 n s jitter integrated j integrat ed from phase noise, 12 khz to 20 mhz , rms 0.3 ps wavecrest characterized random p eriod, 2.5 ps accumul., pk- to- pk 35 ps deterministic 6 ps sub-harmonics -50 dbc phase noise (1) ( f) 212.5 mhz @ 10 hz @100 hz @1 khz @10khz @100khz @>1mhz -65 -95 -122 -138 -142 -148 dbc/hz frequency stability f/f overall, including temperature, aging 10 years, shock and vibration @ vc=vcc/2; if -40 to 85c is selected 30 50 ppm control volta g e ran g e vc 0v vcc v setability vcs vc to set f at fo; t, vcc, load - nominal, as shi pp ed 0.4 vcc 0.5 vcc 0.6 vcc v absolute pull range apr over all conditions, see part # creation 20,32, 50,100 ppm in put im peda n ce zin @ fm od < 1 00 khz 1 0 k o h m m odu l at i o n b a n dw i dt h a t vc = vcc/ 2 , - 3d b1 0 khz enable high option pin 2 enabled pin 2 disabled cmos logic 1 or n/c cmos logic 0 0.7 vcc 0 vcc 0.3 vcc v enable low option pin 2 disabled pin 2 enabled cmos logic 1 or n/c cmos logic 0 0.7 vcc 0 vcc 0.3 vcc v footnote: 1) if phase noise da ta at a particular frequency is needed, contact factory. 2) all parameters, unless ot herwise specified, are at nominal conditions, ie: t=25c, nominal vcc & nomi nal load.
357 beloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone 262/763-3591 fax 262/763-2881 email: nelsales@nelfc.com www.nelfc.com data sheet 0629e crystal clock oscillators SD-X3DBXXX-X series lvds uhf vcxo rev. j electrical connection pin connection 1 vco 2 enable 3 v ee 4 output 5 output complement 6 v cc environmental and mechanical characteristics operating temp. range see part # table mechanical shock per mil-std-202, method 213, cond. a thermal shock per mil-std-883, method 1011, cond. a vibration per mil-std-883, method 2007, cond. a hermetic seal leak rate less than 1x10 -8 atm.cc/s of helium soldering conditions see max reflow profile below max reflow profile
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