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 vcxo series (pecl) sd-a3670 series preliminary description the sd-a3670 series of voltage controlled quartz crystal oscillators provide frequency control by applying a voltage to pin 1. this unit supplies dpecl compatible outputs which are enabled when pin 2 is set to a logic low or left open. features ? frequency range?80.0mhz to 162.0mhz ? user specified tolerance available ? will withstand vapor phase temperatures of 253c for 4 minutes maximum ? space-saving alternative to discrete component oscillators ? high shock resistance, to 1000g ? 3.3 volt operation ? metal lid electrically connected to ground to reduce emi ? 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 ? no internal pll avoids cascading pll problems ? high frequencies due to proprietary design ? gold plated pads electrical connection pad connection 1 v co 2 enable 3 v ee 4 output 5 output complement 6 v cc crystal clock oscillators data sheet 0209a rev. c
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 sd-a3670 series continued vcxo (pecl) operating conditions and output characteristics electrical characteristics parameter symbol conditions min typical max frequency ----- ----- 80.0mhz ----- 162.0mhz duty cycle ----- @ v o /2 45/55% ----- 55/45% logic 0 v ol ----- vcc-1.810vdc ----- vcc-1.620vdc logic 1 v oh ----- vcc-1.200vdc ----- vcc-0.880vdc rise & fall time tr,tf 20-80%v o ----- ----- 1.25 ns jitter, rms (2) ----- ----- ----- 3 psec ----- pullability ----- 0.3 to 3.0v 75ppm ----- ----- vco input impedance ----- 50na dc current max 100k ohm ----- ----- vco linearity ----- ----- ----- ----- 25% frequency stability (1) 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 -v ee nominal 3.135v 3.3v 3.465v supply current i cc ----- ----- ----- 60 ma output current i o ----- 0.0 ma ----- 50.0 ma operating temperature t a ------ 0c ----- 70c storage temperature t s ----- -55c ----- 125c power dissipation p d ----- ----- ----- 208 mw lead temperature t l soldering, 10 sec. ----- ----- 300c load 50 ohm to v cc -2v or thevenin equivalent, bias required 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) standard frequency stability (20,25,50ppm & others available) 2) jitter performance is frequency dependent. please contact factory for full wavecrest characterization. rev. c crystal clock oscillators sd - a 367x - freq package code tolerance/performance sd 6 pad 5x7mm smd 0 100ppm 0-70c 1 50ppm 0-70c 7 25ppm 0-70c input voltage 9 customer specific code specification a 20ppm 0-70c a 3.3v b 50ppm -40 to +85c 5v c 100ppm -40 to +85c creating a part number data sheet 0209a
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