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 cmos ac-a1460 series description the ac-a1460 series of quartz crystal oscillators provide enable/disable 3-state cmos compatible signals for bus connected systems. supplying pin 1 of the ac-a1460 units with a logic ?1" or open enables its pin 3 output. in the disable mode, pin 3 presents a high impedance to the load. features ? wide frequency range 0.5mhz to 156.250mhz ? user specified tolerance available ? space-saving alternative to discrete component oscillators ? 3.3 volt operation ? high shock resistance, to 1000g ? low jitter ? high q crystal actively tuned oscillator circuit ? no internal pll avoids cascading pll problems ? high frequencies due to proprietary design ? metal lid electrically connects to ground to reduce emi ? gold plated pads ? rohs compliant, lead free construction electrical connection pin connection 1 enable/disable 2 ground 3 output 4 v dd crystal clock oscillators data sheet 0634r rev. -
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 ac-a1460 series continued cmos operating conditions and output characteristics electrical characteristics parameter symbol conditions min typical max frequency ----- ----- 0.5mhz ----- 156.250mhz duty cycle ----- @ v dd /2 45/55% ----- 55/45% logic 0 v ol @ 600a ----- 0.1v 0.2v logic 1 v oh @ 600a v dd -0.2v v dd -0.1v ----- rise & fall time tr,tf 10-90%v o ----- 1.0 ns 2.0 ns jitter, rms (2) ----- overtone ----- ----- 5 psec t pz ----- ----- ----- ----- 100 ns enable voltage ----- ----- 2.0v ----- ----- disable voltage ----- ----- ----- ----- 0.8v 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 (1) v dd ----- 3.00v 3.3v 3.60v supply current i dd no load 0.0 ma 40 ma 60 ma output current i o low level output current 0.0 ma ----- 25.0 ma operating temperature t a ------ 0c ----- 70c storage temperature t s ----- -55c ----- 125c power dissipation p d ----- ----- ----- 216 mw solder temperature t l 4 minutes ----- ----- 253c load ----- ----- ----- ----- 15pf start-up time t s ----- ----- ----- 10 ms environmental and mechanical characteristics mechanical shock per mil-std-202, method 213, condition e thermal shock per mil-std-883, method 1011, condition a vibration 0.060" double amplitude 10 hz to 55 hz, 35g?s 55hz to 2000 hz hermetic seal leak rate less than 1 x 10 -8 atm.cc/sec of helium footnotes: 1) external high frequency power supply decoupling required. 2) rms jitter bandwidth of 12khz to 20mhz. 3) standard frequency stability (others available) test load: rev. - crystal clock oscillators ac - a 146x - freq package code tolerance/performance ac 4 pad 5x3.2mm 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 c 100ppm -40 to +85c creating a part number data sheet 0634r
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