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 differential positive ecl (dpecl) sk-b29b0 series description the sk-b29b0 series of quartz crystal oscillators provide dpecl fast edge compatible signals. this device is to operate using positive voltage and uses multiple ground pins for improved signal integrity. this device is intended to operate on positive voltage for pecl applications. features ? wide frequency range - 350.0mhz to 1.7ghz ? user specified tolerance available ? case at electrical ground ? will withstand smd reflow temperatures of 253c for 4 minutes maximum ? all metal, resistance weld, hermetically sealed package ? high shock resistance, to 1500g ? low jitter - wavecrest jitter characterization available ? high reliability - nel halt/hass qualified for crystal oscillator start-up conditions ? high q crystal actively tuned oscillator circuit ? power supply decoupling internal ? high frequencies due to proprietary design ? rohs compliant, lead-free construction electrical connection pin connection 1 v cc 2 v ee case 6 v ee case 7 output 8 /output 9 v ee case 13 v ee case 14 enable/disable all other pins are no connect crystal clock oscillators data sheet 0447H rev. d
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 sk-b29b0 series continued differential positive ecl (dpecl) operating conditions and output characteristics electrical characteristics parameter symbol conditions min typical max frequency ----- ----- 350.0mhz ----- 1.7ghz duty cycle ----- @ 50% points 45/55% ----- 55/45% logic 0 (1) v ol ----- v cc -1.810v ----- v cc -1.620v logic 1 (1) v oh ----- v cc -1.025v ----- v cc -0.880v rise & fall time tr,tf 20-80%v o with 50 ohm load to v cc -2v ----- 350 psec 600 psec jitter, rms (4) ----- ----- ----- 0.3 psec 0.5 psec enable voltage (2) ---- with v ee =0v 0v ----- 0.8v disable voltage ----- with v ee =0v 2.0v ----- v cc frequency stability (3) df/f overall conditions including: -100ppm ----- +100ppm voltage, calibration, temp., 10 yr aging, shock, vibration general characteristics parameter symbol conditions min typical max supply voltage v cc 2.5v5% 2.375v 2.5v 2.625v supply current i cc 50 ohm termination 0.0 ma ----- 160 ma to 2.00v below v cc output current i o low level output current 0.0 ma ----- 50.0 ma operating temperature t a ------ 0c ----- 70c storage temperature t s ----- -55c ----- 125c input: logic high (ecl) - disables v ee or open - enables lead temperature t l soldering, 10 sec. ----- ----- 300c load 50 ohm to v cc -2v or thevenin equivalent, bias required start-up time t s ----- ----- 2 ms 10 ms environmental and mechanical characteristics mechanical shock per mil-std-202, method 213, condition e thermal shock per mil-std-833, method 1011, condition a vibration 0.060" double amplitude 10 hz to 55 hz, 35g?s 55hz to 2000 hz soldering condition 300c for 10 seconds hermetic seal leak rate less than 1 x 10 -8 atm.cc/sec of helium footnotes: 1) v ol , v oh , referenced to ground 2) open to enable pin also enables the output. 3) standard frequency stability (others available) 4) jitter performance is frequency dependent. please contact factory for full aeroflex characterization. rms jitter bandwidth of 12khz to 20mhz. rev. d crystal clock oscillators sk - b 29bx - freq package code tolerance/performance hk leaded 8 pin (14 pin) 0 100ppm 0-70c sk 8 pin (14 pin) smd gull 1 50ppm 0-70c wing 7 25ppm 0-70c input voltage 9 customer specific code specification a 20ppm 0-70c a 3.3v b 50ppm -40 to +85c b 2.5v c 100ppm -40 to +85c creating a part number data sheet 0447H
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