saronix-ecera? is a pericom? semiconductor company ? us: +1-408-435-0800 tw: +886-3-4518888 ? www .pericom.com all specifications are subject to change without notice. LD10GE156 r ev e 0 7/13/12 3.3v lvds low jitter 156.25 mhz 10gbe xo LD10GE156 application specifc crystal oscillator 5.0 x 3.2mm product features ? very low phase jitter ? thicker crystal for improved reliability ? pb-free & rohs compliant ? industrial temperature range product description the ld series 3.3v, 156.25mhz crystal clock oscillator achieves superb jitter for 10gbe applications. the output clock signal, generated internally with a custom oscillator design, is compatible with lvds logic levels. the device, available on tape and reel, is contained in a 5.0 x 3.2mm surface-mount ceramic package. applications ? 10 gigabit ethernet network interface cards (nic) ? 10 gigabit ethernet switch/router ? 10 gigabit ethernet phy module ? serial attached iscsi package: recommended land pattern: part ordering information: LD10GE156 *extended high frequency power decoupling is recommended (see test circuit for minimum recommendation). to ensure optimal performance, do not route rf traces beneath the package. 5.0 x 3.2mm ceramic smd assp xo? for networking pin functions: pin function 1 oe function 2 n/c 3 v ee 4 out 5 out 6 v cc 1 created using cadstd lite freeware from www.cadstd.com. non-commercial use only. created using cadstd lite freeware from www.cadstd.com. non-commercial use only. (scale: none, dimensions are in mm) tm 12-0053
saronix-ecera? is a pericom? semiconductor company ? us: +1-408-435-0800 tw: +886-3-4518888 ? www .pericom.com all specifications are subject to change without notice. LD10GE156 r ev e 0 7/13/12 3.3v lvds low jitter 156.25 mhz 10gbe xo application specifc crystal oscillator 5.0 x 3.2mm LD10GE156 electrical performance parameter min. typ. max. units notes output frequency 156.25 mhz supply voltage 2.97 3.30 3.63 v supply current, output enabled 80 ma supply current, output disabled 30 m a frequency stability 50 ppm see note 1 below operating temperature range -40 +85 c output logic 0, v ol 0.90 1.10 v output logic 1, v oh 1.43 1.60 v output load 100 & 5pf output requires termination duty cycle 45 55 % measured 50% waveform rise and fall time 1.0 ns measured 10/90% of waveform jitter, phase rms (1-) 1.0 ps 12 khz to 20 mhz frequency band jitter, pk C pk 40 ps 100,000 random periods notes: 1. stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25c), aging (5 year at 40c average ef fective ambient temperature), shock and vibration. 2. for specifcations othere than those listed, please contact sales. absolute maximum ratings parameter min. typ. max. units notes storage temperature -55 +125 c for the latest product information visit: http://www.pericom.com/products/crystals-and-crystal-oscillators/assp-xo/?part=LD10GE156 for test circuit go to : http://www.pericom.com/pdf/sre/tc_lvds.pdf for soldering refow profle and reliability test ratings go to: http://www.pericom.com/pdf/sre/reflow.pdf for tape and reel information go to: http://www.pericom.com/pdf/sre/tr_5032_xo.pdf 2 output enable / disable function parameter min. typ. max. units notes input voltage (pin 1), output enable 0.7* v cc v or open input voltage (pin 1), output disable (low power standby) 0.3* v cc v outputs disabled to hi-z output disable delay 200 ns output enable delay 2 ms internal pull up resistance 50 k? tm 12-0053
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