product information is current as of publication date. the product conforms copyright ? 2010 pletronics inc. to specifications per the terms of the pletronics standard warranty. production processsing does not necessarily in clude testing of all parameters. lv76d / lv78d series 2.5 v lvds clock oscillators february 2010 do not use for new designs - use lv55 or lv77 ? pletronics? lv76d / lv78d series is a quartz crystal controlled precision square wave generator with an lvds output. ? solder pad compatible with many 9x14mm plastic j lead packages. ? tape and reel or cut tape packaging is available. ? 80 to 250 mhz ? 9.04mm x 8.23mm (s package) ? enable/disable lv76d on pad 1 lv78d on pad 2 ? disable function includes low standby power mode ?3 rd overtone crystals used ? low jitter ? 5x7 mm lv77xxdw is used pletronics inc. certifies this device is in accordance with the rohs 5/6 (2002/95/ec) and w eee (2002/96/ec) directives. pletronics inc. guarantees the device does not contain the following: cadmium, hexavalent chromium, lead, mercury, pbb?s, pbde?s weight of the device: 0.4 grams moisture sensitivity level: 1 as defined in j-std-020c second level interconnect code: e4 absolute maximum ratings: parameter unit v cc supply voltage -0.5v to +5.0v vi input voltage -0.5v to v cc + 0.5v vo output voltage -0.5v to v cc + 0.5v thermal characteristics the maximum die or junction temperature is 155 o c the thermal resistance junction to board is 60 to 100 o c/watt depending on the solder pads, ground plane and construction of the pcb.
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 2 part number: lv7x 45 d e w -125.0m -xx part marking: ple lv77 ff.fff m c ymdxx packaging code or blank t250 = 250 per tape and reel t500 = 500 per tape and reel t1k = 1000 per tape and reel frequency in mhz supply voltage v cc w = 2.5v + _ 10% optional enhanced otr blank = temp. range -10 to +70 o c e = temp. range -40 to +85 o c series model frequency stability 45 = + _ 50 ppm 44 = + _ 25 ppm 20 = + _ 20 ppm series model lv76 or lv78 marking legend: ple = pletronics the marking is on the cover of the lv77 device ff.fff m = frequency in mhz the marking is that of the lv77 device ymd = date of manufacture (year and week, or year-month-day) all other marking is internal factory codes specifications such as frequency stability, supply voltage and operating temperature range, etc. are not identified from the marking. external packaging labels and packing list will correctly identify the ordered pletronics part number. codes for date code ymd code 6 7 8 9 0 1 2 year 2006 2007 2008 2009 2010 2011 2012 code a b c d e f g h j k l m month jan feb mar apr may jun jul aug sep oct nov dec code123456789abc day 123456789101112 code d e f g h j k l m n p r day 13 14 15 16 17 18 19 20 21 22 23 24 code t u v w x y z day 25 26 27 28 29 30 31
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 3 electrical specification for 2.50v + _10% over the specified temperature range item min max unit condition frequency range 80 250 mhz frequency accuracy ? 45 " -50 +50 ppm for all supply voltages, load changes, aging for 1 year, shock, vibration and temperatures ? 44 " -25 +25 ? 20 " -20 +20 output waveform lvds output high level -- 1.60 volts see load circuit r1 = 50 ohms output low level 0.90 -- volts see load circuit r1 = 50 ohms differential output (v od ) 247 454 mvolts see load circuit r1 = 50 ohms output offset voltage (v os ) 1.125 1.375 volts see load circuit r1 = 50 ohms differential output error (dv os ) -- 50 mvolts see load circuit r1 = 50 ohms output symmetry 45 55 % referenced to 50% of amplitude or crossing point output t rise and t fall 300 700 ps vth is 20% and 80% of waveform jitter - 0.15 ps rms measured from 12khz to 20mhz from fnominal - 2.8 measured from 10hz to 1mhz from fnominal vcc supply current - 63 ma includes cu rrent of properly terminated device enable/disable internal pull-up 50 - k ohm to vcc (equivalent resistance) v disable - 0.8 volts referenced to ground v enable 2.0 - volts referenced to ground output leakage v out = v cc -10 +10 ua pad 1 low, device disabled v out = 0v -10 +10 ua enable - 10 ns time for output to reach a logic state disable time - 10 ns time for output to reach a high z state start up time - 5 ms measured from the time vcc = 3.0v operating temperature range -10 +70 o c standard temperature range -40 +85 o c extended temperature range ? e ? option storage temperature range -55 +125 o c standby current i cc - 3 ua pad 1 low, device disabled specifications with e/d open circuit
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 4 -160 -140 -120 -100 -80 -60 -40 -20 0 10 1,000 100,000 10,000,000 frequency (hz) dbc/hz showing out measurement only trise symmetry 20% vlow 50% 80% vhigh tfall out* out typical phase-noise response load circuit test waveform
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 5 reliability : environmental compliance parameter condition mechanical shock mil-std-883 method 2002, condition b vibration mil-std-883 method 2007, condition a solderability mil-std-883 method 2003 thermal shock mil-std-883 method 1011, condition a esd rating model minimum voltage conditions human body model 1500 mil-std-883 method 3115 charged device model 1000 jesd 22-c101 package labeling label is 1" x 2.6" (25.4mm x 66.7mm) label is 1" x 2.6" (25.4mm x 66.7mm) font is courier new font is arial bar code is 39-full ascii (the label will show lv76 or lv78)
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 6 6 54 3 2 1 mechanical: inches mm b 0.356 + _0.005 9.04 + _0.13 c 0.126 + _0.005 3.21 + _0.13 d 0.324 + _0.005 8.23 + _0.13 f 1 0.050 1.27 label: laser marked lettering fr4 pcb base: solder masked all via holes tented on bottom copper clad 670 inch (17 m) nickel plated 118 inch (3 m) gold plated 0.8 inch (0.02 m) typical thicknesses pin 3 ground plane is typical not to scale g 1 0.040 1.02 h 1 0.059 1.50 i 1 0.020 0.51 j 1 0.040 1.02 k 1 0.100 2.54 l 1 0.062 1.57 pad function note 76 78 1 2 no connect there is no internal connection to this pad 2 1 output enable/disable when this pad is not connected the oscillator shall operate. when this pad is <0.30 volts, the output will be inhibited (high impedance state.) recommend connecting this pad to v cc if the oscillator is to be always on. 3 ground (gnd) 4 output the outputs must be terminated, 100 ohms between the out puts is the ideal termination. 5 output* 6 supply voltage (v cc ) recommend connecting appropriate power s upply bypass capacitors as close as possible. layout and application information recommend connecting pad 1 and pad 2 together to pe rmit the design to accept enable/disable on both input pads (see lv76d for e/d on pad 1) for optimum jitter performance, pletronics recommends: ? a ground plane under the device ? no large transient signals (both current and voltage) should be routed under the device ? do not layout near a large magnetic field su ch as a high frequency switching power supply
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 7 mechanical (obsolete version): the cover is no longer being supplied over this part. this part is made with a hermetically sealed lv77xxdw series oscillator. this part is now exposed. the cover has been deleted, the cover was causing pr oblems with the newer high temperature rohs lead free processes. the cover purpose was only cosmetic. all parts with 2008 date codes will be made in the new fashion. there is no change in electrical properties. pletronics does recommend that all designs should transition to the lv77xxdw ceramic part. inches mm a 0.351 + _0.003 8.91 + _0.07 b 0.356 + _0.005 9.04 + _0.13 c 0.103 + _0.005 2.62 + _0.13 d 1 0.324 8.23 e 1 0.316 8.03 f 1 0.050 1.27 cover: centered on the base 304 stainless steel 0.010 inch (0.25mm) electroless nickel plated 1 inch (25 m) typical label: white kapton with black letters ?or-- blue epoxy heat cure ink covering top with laser marked lettering fr4 pcb base: solder masked solder masked all via holes tented on bottom copper clad 670 inch (17 m) nickel plated 118 inch (3 m) gold plated 0.8 inch (0.02 m) typical thicknesses pin 3 ground plane is typical not to scale g 1 0.040 1.02 h 1 0.059 1.50 i 1 0.020 0.51 j 1 0.040 1.02 k 1 0.100 2.54 l 1 0.026 typical 0.66 ? the package is not hermetically sealed. ? the sides are intentionally left open to permit cleani ng material to freely flow in the package, thus minimizing the accumulation of contaminants during cleaning processes. ? the internal part of the package must be thoroughly dry before operating.
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 8 260c maximum 10 seconds maximum 215c10c approximately 50 seconds allowed rate of temperature change maximum 4c per second 120 to 160 seconds 100 150 200 250 temperature (c) 175c10c reflow cycle (typical for lead free processing) the part may be reflowed 2 times without degradation. tape and reel: available for quantities of 250 to 1000 per reel, cut tape for < 250 constant dimensions table 1 tape size d0 d1 min e1 p0 p2 s1 min t max t1 max 8mm 1.5 +0.1 -0.0 1.0 1.75 + _0.1 4.0 + _0.1 2.0 + _0.05 0.6 0.6 0.1 12mm 1.5 16mm 1.5 2.0 + _0.1 24mm 1.5 variable dimensions table 2 tape size b1 max e2 min f p1 t2 max w max ao, bo & ko 24 mm 9.88 22.25 11.5 + _0.1 16.0 + _0.1 3.22 24.3 note 1 note 1: embossed cavity to conform to eia-481-b dimensions in mm not to scale reel dimensions a inches 7.0 10.0 13.0 mm 177.8 254.0 330.2 b inches 2.50 4.00 3.75 mm 63.5 101.6 95.3 tape width c mm 13.0 +0.5 / -0.2 d mm --- --- 24.4 +2.0 -0.0 24.0 reel dimensions may vary from the above
lv76d / lv78d series 2.5 v lvds clock oscillators feb ruary 2010 www.pletronics.com 425-776-1880 9 important notice pletronics incorporated (ple) reserves the right to make corrections, improvements, modifications and other changes to this product at anytime. ple reserv es the right to discontinue any product or service without notice. customers are responsible for obtaining the latest relevant information before placing orders and should verify that such information is current and complete. all products are sold subject to ple?s terms and conditions of sale supplied at the time of order acknowledgment. ple warrants performance of this product to the specifications applicable at the time of sale in accordance with ple?s limited warranty. testing and other quality control techniques are used to the extent ple deems necessary to support this warranty. except where mandated by specific contractual documents, testing of all parameters of each product is not necessarily performed. ple assumes no liability for application assistance or customer product design. customers are responsible for their products and applications usi ng ple components. to minimize the risks associated with the customer products and applications, customers should provide adequate design and operating safeguards. ple products are not designed, intended, authorized or warranted to be suitable for use in life support applications, devices or systems or other critical applications that may involve potential risks of death, personal injury or severe property or environm ental damage. inclusion of ple products in such applications is understood to be fully at the risk of the customer. use of ple products in such applications requires the written approval of an appropriate ple officer. questions concerning potential risk applications should be directed to ple. ple does not warrant or represent that any license, either express or implied, is granted under any ple patent right, copyright, artwork or other intellectual pr operty right relating to any combination, machine or process which ple product or services are used. information published by ple regarding third-party products or services does not constitute a license from ple to use such products or services or a warranty or endorsement thereof. use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from ple under the patents or other intellectual property of ple. reproduction of information in ple data sheets or w eb site is permissible only if the reproduction is without alteration and is accompanied by associated warranties, conditions, limitations and notices. reproduction of this information with alteration is an unfair and deceptive business practice. ple is not responsible or liable for such altered documents. resale of ple products or services with statements different from or beyond the parameters stated by ple for that product or service voids all express and implied warranties for the associated ple product or service and is an unfair or deceptive business practice. ple is not responsible for any such statements. contacting pletronics inc. pletronics inc. tel: 425-776-1880 19013 36 th ave. west fax: 425-776-2760 lynnwood, wa 98036-5761 usa e-mail: ple-sales@pletronics.com url: www.pletronics.com copyright ? 2006, 2007, 2008, 2010 pletronics inc.
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