product informatin is current as of publication date. the product conforms copyright ? 2005, pletronics inc. to specifications per the terms of the pletronics standard warranty. production processsing does not necesarily include testing of all parameters. lv78d series 2.5 v lvds clock oscillators june 2005 pletronics? lv78d series is a quartz crystal controlled precision square wave generator with an lvds output. fr4 base with a mechanical metal cover. solder pad compatible with many 9x14mm plastic j lead packages. has internal bypass capacitor on the vcc lead tape and reel or tube packaging is available. 80 to 250 mhz 9.04mm x 8.91mm (s package) enable/disable function on pad 2 (see lv76d for e/d on pad 1) disable function includes low standby power mode 3 rd overtone crystals used low jitter 5x7 mm lcc ceramic oscillator inside pletronics inc. certifies this device is in accordance with the rohs (2002/95/ec) and weee (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.
lv78d series 2.5 v lvds clock oscillators jun e 2005 www.pletronics.com 425-776-1880 2 part number: lv78 45 d e w - 125.0m -xx marking internal code or blank frequency in mhz fff.fff m supply voltage v cc w = 2.5v + _ 10% w or b enhanced specification e = temperature range -40 to 85 o c e series model frequency stability 45 = + _ 50 ppm 44 = + _ 25 ppm 20 = + _ 20 ppm 5 4 2 series model lv78d part marking: lv78dx where: x = frequency stability fff.fff m fff.fff = frequency in mhz ple sss sss = enhanced specification and voltage yywwa yywwa = date code pletronics may ship the following combinations without notice (this is an enhanced specified device) 44 (25 ppm) stability parts when 45 (50 ppm) was ordered 20 (20 ppm) stability parts when 45 (50 ppm) or 44 (25 ppm) was ordered. e temperature range parts when extended was not ordered. pletronics may ship parts that are not marked for extended temperature range but were tested for extended temperature range, a certificate of conformance will accompany these parts.
lv78d series 2.5 v lvds clock oscillators jun e 2005 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 current of properly terminated device enable/disable internal pull-up 50 - kohm 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 0 +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 pad 1 e/d open circuit typical phase-noise response
lv78d series 2.5 v lvds clock oscillators jun e 2005 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 load circuit test waveform
lv78d series 2.5 v lvds clock oscillators jun e 2005 www.pletronics.com 425-776-1880 5 reliability : environmental compliance parameter condition mechanical shock mil-std-883 method 2002, condition a 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
lv78d series 2.5 v lvds clock oscillators jun e 2005 www.pletronics.com 425-776-1880 6 mechanical: 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 pad function note 1 no connect there is no internal connection to this pad 2 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 outputs is the ideal termination. 5 output* 6 supply voltage (v cc ) recommend connecting appropriate power supply bypass capacitors as close as possible. layout and application information recommend connecting pad 1 and pad 2 together to permit 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 such as a high frequency switching power supply do not place near piezoelectric buzzers or mechanical fans.
lv78d series 2.5 v lvds clock oscillators jun e 2005 www.pletronics.com 425-776-1880 7 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 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 16.4 +2.0 -0.0 16.4 +2.0 -0.0 16.4 +2.0 -0.0 16.0 mm --- --- 24.4 +2.0 -0.0 24.0 mm --- --- 32.4 +2.0 -0.0 32.0 reel dimensions may vary from the above
lv78d series 2.5 v lvds clock oscillators jun e 2005 www.pletronics.com 425-776-1880 8 important notice pletronics incorporated (ple) reserves the right to make corrections, improvements, modifications and other changes to this product at anytime. ple reserves 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 standard 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 using ple components. to minimize the risks associated with the customer products and applications, customers should provide adequate design and operating safeguards. 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 property 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 web 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. 19013 36 th ave. w, suite h lynnwood, washington 98036-5761 usa tel: 425-776-1880 fax: 425-776-2760 e-mail: ple-sales@pletronics.com url: www.pletronics.com copyright ? 2005, pletronics inc.
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