nel frequency controls, inc. 357 beloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone 414/763-3591 fax 414/763-2881 9420c rev. e nel crystal clock oscillators specification hs/sm/ha/sa packages -1420 cmos pin connection hs/sm connection 1 enable/disable input 7 grd & case 8 output 14 v dd ha/sa connection 1 enable/disable input 4 grd & case 5 output 8 v dd hs- outline drawing shown contact nel for others. description -1420 series of quartz crystal oscillators provide enable/disable 3- state cmos compatible signals for bus connected systems. supplying enab le/disable pin of the -1420 units with a logic ?1" or open enables its output. in the disable mode, output pin presents a high impedance to the load. all units are resistance welded in an all metal package, offering rfi shielding, and are designed to service standard wave soldering operations without damage. insulated standoffs to enhance board cleaning are standard. suggested applications -1420 series oscillators are ideally suited for applications involving more than one clock or allows ate (auto matic test equipment) board testing without having to remove the oscillator. in multiplexing applications, multiplex clock signals can be made available to a system using the enable/disable 3-state feature. features [] wide frequency range - 0.5mhz to 85.0mhz [] user specified tolerance from 25ppm [] will withstand vapor phase temperatures of 253c for 4 minutes maximum. [] low power consumption [] high shock resistance, to 3000g [] all metal, resistance weld hermetically sealed package [] sm & sa versions: leads are solder dipped for ease of solder attaching to printed wiring board.
nel frequency controls, inc. 357 beloit street, p.o. box 457, burlington, wi 53105-0457 u.s.a. phone 414/763-3591 fax 414/763-2881 9420c rev. e crystal clock oscillators operating conditions and output characteristics -1420 cmos (continued) parameter conditions minimum maximum general characteristics supply voltage (v dd ) supply 4.75v 5.25v breakdown -0.5v 7.0v supply current (i dd ) v dd or ground current 0.0 ma 50 ma output current (i o ) low level output current 0.0 ma 16.0 ma tolerance (1) user specified 25ppm ----- operating temperature (t a ) ------ 0c 70c storage temperature (t s ) ----- -55c 125c power dissipation (p d ) ----- ------ 400 mw lead temperature (t l ) soldering, 10 sec. ------ 300c output characteristics frequency ------ 0.5mhz 85.0mhz symmetry @ .5v dd 40/60% 60/40% logic 0 (v ol ) i o =600a ----- 0.2v logic 1 (v oh ) i o =600a v dd -0.2v ----- logic 0 (i ol sink) v o =0.2v ----- 600a logic 1 (i oh source) v o =v dd -0.2v ----- 600a rise & fall time (t r ,t f ) 10-90% v o <40mhz ----- 8 ns $ 40mhz ------ 6 ns t pz (enable/disable to high or low) ----- ----- 25ns enable/disable logic high voltage ----- 3.5v ----- enable/disable logic low voltage ----- ----- 1.5v footnote: (1) tighter tolerances available upon request. this information has been carefully prepared and is believed to be entirely reliable. however, no responsibility is assumed for inaccuracies. nel reserves the right to make changes at any time in order to improve design and supply the best product possible.
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