? 1999 fairchild semiconductor corporation ds010922 www.fairchildsemi.com may 1991 revised november 1999 100316 low power quad differential line driver with cut-off 100316 low power quad differential line driver with cut-off general description the 100316 is a quad differential line driver with output cut- off capability. the outputs are designed to drive a doubly terminated 50 ? transmission line (25 ? equivalent imped- ance) in an ecl backplane. the 100316 is ideal for driving low noise, differential ecl backplanes. a low on the out- put enable (oe) will set both the true and complementary outputs into a high impedance or cut-off state, isolating them from the backplane. the cut-off state is designed to be more negative than a normal ecl low state. unlike most 100k devices, the data inputs (d n , d n ) do not have input pull-down resistors. an internal reference supply (v bb ) is available for single-ended operation. features differential inputs and outputs output cut-off capability drives 25 ? load v bb available for single-ended operation 2000v esd protection voltage compensated operating range = ? 4.2v to ? 5.7v available to industrial grade temperature range ordering code: devices also available in tape and reel. specify by appending the suffix letter ?x? to the ordering code. logic symbol pin descriptions connection diagram 28-pin plcc order number package number package description 100316QC v28a 28-lead plastic lead chip carrier (plcc), jedec mo-047, 0.450 square 100316qi v28a 28-lead plastic lead chip carrier (plcc), jedec mo-047, 0.450 square industrial temperature range ( ? 40 c to + 85 c) pin names description d n data inputs q n data outputs q n complementary data outputs oe output enable
www.fairchildsemi.com 2 100316 truth table h = high voltage level l = low voltage level x = don?t care cut-off = lower-than-low state logic diagram inputs outputs d n d n oe q n q n lhhlh hlhhl x x l cut-off cut-off
3 www.fairchildsemi.com 100316 absolute maximum ratings (note 1) recommended operating conditions note 1: the ? absolute maximum ratings ? are those values beyond which the safety of the device cannot be guaranteed. the device should not be operated at these limits. the parametric values defined in the electrical characteristics tables are not guaranteed at the absolute maximum rating. the ? recommended operating conditions ? table will define the conditions for actual device operation. note 2: esd testing conforms to mil-std-883, method 3015. commercial version dc electrical characteristics (note 3) v ee = ? 4.2v to ? 5.7v, v cc = v cca = gnd, t c = 0 c to + 85 c note 3: the specified limits represent the ? worst case ? value for the parameter. since these values normally occur at the temperature extremes, additional noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. conditions for testing sho wn in the tables are cho- sen to guarantee operation under ? worst case ? conditions. ac electrical characteristics v ee = ? 4.2v to ? 5.7v, v cc = v cca = gnd storage temperature (t stg ) ? 65 c to + 150 c maximum junction temperature (t j ) + 150 c pin potential to ground pin (v ee ) ? 7.0v to 0.5v input voltage (dc) v ee to + 0.5v output current (dc output high) ? 100 ma esd (note 2) 2000v case temperature (t c ) commercial 0 c to + 85 c industrial ? 40 c to + 85 c supply voltage (v ee ) ? 5.7v to ? 4.2v symbol parameter min typ max units conditions v oh output high voltage ? 1025 ? 955 ? 870 mv v in = v ih (max) loading with v ol output low voltage ? 1830 ? 1705 ? 1620 mv or v il (min) 25 ? to ? 2.0v v ohc output high voltage ? 1035 mv v in = v ih (min) loading with v olc output low voltage ? 1610 mv or v il (max) 25 ? to ? 2.0v v olz cut-off low voltage ? 1950 mv v in = v ih (min) oe = low or v il (max) v bb output reference voltage ? 1380 ? 1320 ? 1260 mv i vbb = ? 1 ma v diff input voltage differential 150 mv required for full output swing v cm common mode voltage v cc ? 2.0 v cc ? 0.5 v v ih single-ended guaranteed high signal for all input high voltage ? 1110 ? 870 mv inputs (with one input tied to v bb ) v bb (max) + v diff v il single-ended guaranteed low signal for all input low voltage ? 1830 ? 1530 mv inputs (with one input tied to v bb ) v bb (min) ? v diff i il input low current 0.50 av in = v il (min) i ih input high current d n 250 av in = v ih (max) , d 1 = v bb , d 1 = v il (min) i ihz input high current oe 360 av in = v ih (max) , d 1 = v bb , d 1 = v il (min) i cbo input leakage current ? 10 av in = v ee , d 1 = v bb , d 1 = v il (min) i ee power supply current, normal ? 85 ? 30 ma d 1 = v bb , d 1 = v il (min) i eez power supply current, cut-off ? 152 ? 75 ma d 1 ? d 4 = v bb , d 1 ? d 4 = v il (min) , oe = low symbol parameter t c = 0 ct c = + 25 ct c = + 85 c units conditions min max min max min max t plh propagation delay 0.65 2.10 0.65 2.10 0.65 2.10 ns figures 1, 2 t phl data to output t pzh propagation delay 1.8 4.00 1.8 4.00 1.8 4.00 ns t phz oe to output 1.2 2.90 1.2 2.90 1.2 2.90 t tlh transition time, d n to q n 0.45 1.50 0.45 1.50 0.45 1.50 ns t thl 20% to 80%, 80% to 20%
www.fairchildsemi.com 4 100316 industrial version dc electrical characteristics (note 4) v ee = ? 4.2v to ? 5.7v, v cc = v cca = gnd note 4: the specified limits represent the ? worst case ? value for the parameter. since these values normally occur at the temperature extremes, additional noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. conditions for testing sho wn in the tables are cho- sen to guarantee operation under ? worst case ? conditions. ac electrical characteristics v ee = ? 4.2v to ? 5.7v, v cc = v cca = gnd symbol parameter t c = ? 40 ct c = 0 c to + 85 c units conditions min max min max v oh output high voltage ? 1085 ? 870 ? 1025 ? 870 mv v in = v ih (max) loading with v ol output low voltage ? 1830 ? 1585 ? 1830 ? 1620 mv or v il (min) 25 ? to ? 2.0v v ohc output high voltage ? 1095 ? 1035 mv v in = v ih (min) loading with v olc output low voltage ? 1575 ? 1610 mv or v il (max) 25 ? to ? 2.0v v olz cut-off low voltage ? 1900 ? 1950 mv oe = low, v in = v ih (min) or v il (max) v bb output reference voltage ? 1395 ? 1255 ? 1380 ? 1260 mv i vbb = ? 1 ma v diff input voltage differential 150 150 mv required for full output swing v cm common mode voltage v cc ? 2.0 v cc ? 0.5 v cc ? 2.0 v cc ? 0.5 v v ih single-ended guaranteed high signal for all input high voltage ? 1115 ? 870 ? 1110 ? 870 mv inputs (with one input tied to v bb ) v bb (max) + v diff v il single-ended guaranteed low signal for all input low voltage ? 1830 ? 1535 ? 1830 ? 1530 mv inputs (with one input tied to v bb ) v bb (min) ? v diff i il input low current 0.50 0.50 av in = v il (min) i ih input high current, d n 240 240 a v in = v ih (max) , d 1 = v bb , i ihz input high current, oe 360 360 d 1 = v il (min) i cbo input leakage current ? 10 ? 10 av in = v ee , d 1 = v bb , d 1 = v il (min) i ee power supply current, ? 85 ? 30 ? 85 ? 30 ma d 1 = v bb , d 1 = v il (min) normal i eez power supply current, ? 152 ? 75 ? 152 ? 75 ma d 1 ? d 4 = v bb , d 1 ? d 4 = v il (min) , cut-off oe = low symbol parameter t c = ? 40 ct c = + 25 ct c = + 85 c units conditions min max min max min max t plh propagation delay 0.65 2.10 0.65 2.10 0.65 2.10 ns t phl data to output t pzh propagation delay 1.80 4.00 1.80 4.00 1.80 4.00 ns figures 1figure 2 t phz oe to output 1.20 2.90 1.20 2.90 1.20 2.90 t tlh transition time 0.45 1.50 0.45 1.50 0.45 1.50 ns t thl 20% to 80%, 80% to 20%
5 www.fairchildsemi.com 100316 test circuitry notes: v cc , v cca = + 2v, v ee = ? 2.5v l1 and l2 = equal length 50 ? impedance lines r t = 50 ? terminator internal to scope decoupling 0.1 f from gnd to v cc and v ee all unused outputs are loaded with 25 ? to gnd c l = fixture and stray capacitance 3 pf figure 1. ac test circuit switching waveforms figure 2. propagation delay, cut-off and transition times
www.fairchildsemi.com 6 100316 low power quad differential line driver with cut-off physical dimensions inches (millimeters) unless otherwise noted 28-lead plastic lead chip carrier (plcc), jedec mo-047, 0.450 square package number v28a fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and fairchild reserves the right at any time without notice to change said circuitry and specifications. life support policy fairchild ? s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of fairchild semiconductor corporation. as used herein: 1. life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. a critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
|
