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1 www.pericom.com 09/25/15 features ? signaling rates >660 mbps (330 mhz) ? single 3.3v power supply design ? driver: 350mv differential swing into a 100-ohm load propogation delay of 1.5ns typ. low voltage ttl (lvttl) inputs are 5v tolerant ? receiver: accepts 50mv (min.) differential swing with up to 2.0v ground potential difference propagation delay of 3.3ns typ. low voltage ttl (lvttl) outputs open, short, and terminated fail safe ? industrial temperature operating range: C40c to 85c ? meets or exceeds ieee 1596.3 sci standard ? meets or exceeds ansi/tia/eia-644 lvds standard ? bus terminal esd = 2kv hbm ? packaging (pb-free & green available): 8-pin soic or msop pin diagram & block diagram v cc r out r in+ r in? d out? d out+ d in gnd d in r out d out+ d out- r in+ r in- 8-pin u, w description the pi90lv179is a differential line driver and receiver (trans- ceiver) that is compliant with the ieee 1596.3 sci and ansi/ tia/eia-644 lvds standards. this device uses low-voltage differential signaling (lvds) to achieve data rates in excess of 660 mbps while being less susceptible to noise than single-ended transmission. the driver translates a low-voltage ttl/cmos input into a low- voltage (350mv typical) differential output signal. the receiver translates a differential 350mv input signal to a 3v cmos out- put level. applications applications include point-to-point and multidrop baseband data transmission over a controlled impedance media of approxi - mately 100 ohms. these include intra-system connections via printed circuit board traces or cables, hubs and routers for data communi- cations; pbxs, switches, repeaters and base stations for telecommunications and other applications such as digital cameras, printers and copiers. pi90lv179 3.3v lvds high-speed diferential line driver and receiver all trademarks are property of their respective owners. 15-0116
2 www.pericom.com 09/25/15 function tables pin descriptions pi90lv179 receiver input output d in d out+ d outC l l h h h l open l h pin name description d in ttl/cmos driver input pin d out+ non-inverting driver output pin d out- inverting driver output pin r out ttl/cmos receiver output pin r in+ non-inverting receiver input pin r inC inverting receiver input pin gnd ground pin v cc positive power supply pin, +3.3v 10% inputs output v id = v rin+ C v rinC h v id 50mv h C50mv < v id < 50mv ? v id C50mv l open h pi90lv179 driver notes: h = high level, l = low level, ? = indeterminate, z = high-impedance, x = dont care pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
3 www.pericom.com 09/25/15 parameter test condition min. typ. (1) max. units i cc (2) supply current no receiver load, driver r l = 100 ohms 8.0 10.8 ma electrical characteristics (over recommended operating conditions unless otherwise noted). electrical characteristics (over recommended operating conditions unless otherwise noted). parameter test conditions min. typ. max. units | v od | differential output voltage magnitude r l = 100 ohms see figures 1 and 2 247 390 470 mv d| v od | change in differential output voltage magnitude between logic states C50 50 v oc(ss) steady-state common-mode output voltage see figure 3 1.125 1.25 1.375 v d v oc(ss) change in steady-state common-mode output voltage between logic states C50 50 mv v oc(pp) peak-to-peak common-mode output voltage 50 150 notes: 1. all typical values are at 25c with a 3.3v supply 2. i cc measured with all ttl input. v in = v cc or gnd. absolute maximum ratings supply voltage (v cc ) ....................................... C0.5v to +4.0v driver input voltage (d in ) .......................... C0.3v to (vcc + 0.3v) output voltage (d out+ , d out- ) ....................... C0.3v to +3.9v short circuit duration (d out+ , d out- ) ..................continuous receiver input voltage (r in+ , r in- ) .............................. C0.3v to +3.9v output voltage (r out ) ........................C0.3v to (v cc + 0.3v) storage temperature range ......................... C65c to +150c esd rating.............................................................. 2kv hbm min. typ. max. units supply voltage (v cc ) 3 3.3 3.6 v high level input voltage, v ih 2 low level input voltage, v il 0.8 magnitude of differential inpu t voltage v id 0.1 0.6 common-mode input voltage, v ic (fig 5) |v id | /2 2.4 C |v id | /2 v cc C0.8 operating free air temperature t a C40 85 c recommended operating conditions note: stresses greater than those listed under maximum ratings may cause permanent damage to the device. tis is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specifcation is not implied. exposure to absolute maximum rating conditions for extended periods may afect reliability. pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
4 www.pericom.com 09/25/15 parameter test conditions min. typ. max. units v ith+ positive-going differential input voltage threshold see figures 4 & table 1 50 mv v ithC negative-going differential input voltage threshold C50 v oh high-level output voltage i oh = C8ma 2.4 v v ol low-level output voltage i ol = 8ma 0.4 v i i input current (r in+ or r inC ) v i = 0 C2 C11 C20 a v i = 2.4v C1.2 C3 i i (off) power-off input current (r in+ or r inC ) v cc = 0 20 i h high-level input current (enables) v ih = 2v 10 i l low-level input current (enables) v il = 0.8v 10 c i input capacitance 5 pf receiver electrical characteristics (over recommended operating conditions unless otherwise noted). note: all typical values are at 25c with a 3.3v supply parameter test conditions min. typ. max. units i ih high-level input current d in v ih = 5v 2 20 a i il low-level input current d in v il = 0.8v 2 10 i os short-circuit output current v oy or v oz = 0v C6 C9 ma v od = 0v C8 C11 i o(off) power-off output current v cc = 0v, v o = 3.6v 1 a c in input capacitance 7 pf pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
5 www.pericom.com 09/25/15 parameter test conditions min. typ. (1) max. units t plh propagation delay time, low-to-high-level output c l = 10pf see figure 5 2.0 3.1 ns t phl propagation delay time, lhigh-to-low-level output 2.2 3.1 t sk(pp) (2) part-part-part skew (2) 1.3 t sk(p) pulse skew (t phl C t plh ) 300 500 ps t r output signal rise time 0.9 1.5 ns t f output signal fall time 1.0 1.8 ns receiver switching characteristics (over recommended operating conditions unless otherwise noted). notes: 1. all typical values are at 25c with a 3.3v supply 2. t sk(pp) : magnitude of difference in propagation delay times between any specifc terminals of two devices (all things being equal) notes: 1. all typical values are at 25c with a 3.3v supply. 2. t sk(pp) : magnitude of difference in propagation delay times between any specifc terminals of two devices (all things being equal). parameter test conditions min. typ. (1) max. units t plh propagation delay time, low-to-high-level output r l = 100 ohms c l = 10pf see figure 2 1.9 2.5 ns t phl propagation delay time, high-to-low-level output 1.9 2.5 t r differential output signal rise time 0.6 1.1 t f differential output signal fall time 0.6 1.1 t sk(p) pulse skew (t phl - t plh ) 270 ps t sk(pp) part-part-part skew (2) 0.9 ns driver switching characteristics (over recommended operating conditions unless otherwise noted). pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
6 www.pericom.com 09/25/15 d out+ d out? d in driver (continued) 2 v 1.4 v 0.8 v 100% 80% 20% 0% 0 v v od(h) v od(l) output v od 100 1% c l = 10 pf (2 places) t phl t plh t f t r d out+ d out? d in d in note a: all input pulses are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2 ns . c l includes instrumentation and fixture capacitance within 0.06 mm of the d.u.t. v oc c l = 10 pf (2 places) 3 v 0 v v oc(pp) v oc(ss) v oc 49.9 , 1% (2 places) note a: all input pulses are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2 ns . c l includes instrumentation and fixture capacitance within 0.06 mm of the d.u.t. the measurement of v oc(pp) is made on test equipment with a ?3 db bandwidth of at least 300 mhz. figure 2. test circuit, timing, and voltage defnitions for the differential output signal d in v od i i d od+ v oc v od+ v od- + v od+ 2 v od? v i d out+ d out? driver parameter measurement information figure 1. driver voltage and current defnitions pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
7 www.pericom.com 09/25/15 figure 3. test circuit and defnitions for the driver common-mode output voltage d out+ d out? d in driver (continued) 2 v 1.4 v 0.8 v 100% 80% 20% 0% 0 v v od(h) v od(l) output v od 100 1% c l = 10 pf (2 places) t phl t plh t f t r d out+ d out? d in d in note a: all input pulses are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2 ns . c l includes instrumentation and fixture capacitance within 0.06 mm of the d.u.t. v oc c l = 10 pf (2 places) 3 v 0 v v oc(pp) v oc(ss) v oc 49.9 , 1% (2 places) note a: all input pulses are supplied by a generator having the following characteristics: t r or t f 1 ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2 ns . c l includes instrumentation and fixture capacitance within 0.06 mm of the d.u.t. the measurement of v oc(pp) is made on test equipment with a ?3 db bandwidth of at least 300 mhz. receiver v id v ic v o r in+ r in? v irin+ v irin+ r out v irin + +v irin? v irin? v irin+ 2 applied voltages (v) resulting differential input voltage (mv) resulting common- mode input voltage (v) v id v ic 1.225 1.175 50 1.2 1.175 1.225 1.2 2.375 2.325 50 2.35 2.325 2.375 2.35 0.1 0 50 0.05 0 0.05 ?50 0.05 ?50 ?50 1.5 0.9 600 1.2 0.9 1.5 1.2 2.4 1.8 600 2.1 1.8 2.4 2.1 0.6 0 600 0.3 0 0.6 ?600 ?600 ?600 0.3 figure 4. receiver voltage defnitions pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
8 www.pericom.com 09/25/15 table 1. receiver minimum and maximum input threshold test voltages receiver v id v ic v o r in+ r in? v irin+ v irin+ r out v irin + +v irin? v irin? v irin+ 2 applied voltages (v) resulting differential input voltage (mv) resulting common- mode input voltage (v) v id v ic 1.225 1.175 50 1.2 1.175 1.225 1.2 2.375 2.325 50 2.35 2.325 2.375 2.35 0.1 0 50 0.05 0 0.05 ?50 0.05 ?50 ?50 1.5 0.9 600 1.2 0.9 1.5 1.2 2.4 1.8 600 2.1 1.8 2.4 2.1 0.6 0 600 0.3 0 0.6 ?600 ?600 ?600 0.3 pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
9 www.pericom.com 09/25/15 receiver (continued) v id v irin+ v irin+ v irin? v irin? v o c l 10pf v oh v ol 1.4 v v o v id 1.4 v 1 v 0.4 v 0 v ? 0.4 v t phl t plh t r t f 0.4 v 2.4 v note a: all input pulses are supplied by a genertor having the following characteristics: t r or t f 1ns, pulse repetition rate (prr) = 50 mpps, pulse width = 10 0.2ns. c l includes instrumentation and fixture capacitance within 0.06m of the d.u.t. figure 5. timing test circuit and waveforms pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
10 www.pericom.com 09/25/15 packaging mechanical: 8-pin soic (w) 15-0103 pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116
11 www.pericom.com 09/25/15 pericom semiconductor corporation ? 1-800-435-2336 ? www .pericom.com packaging mechanical: 8-pin msop (u) 14-0272 ordering information ordering number package code package description pi90lv179we w 8-pin, 150mil-wide (soic) pi90lv179wex w 8-pin, 150mil-wide (soic), tape & reel pi90lv179ue u 8-pin, mini small outline package (msop) PI90LV179UEX u 8-pin, mini small outline package (msop), tape & reel notes: ? thermal characteristics can be found on the company web site at www .pericom.com/packaging/ ? e = pb-free and green ? x suffx = tape/reel note: for latest package info, please check: http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/ pi90lv179 3.3v lvds high-speed diferential line drivers and receivers all trademarks are property of their respective owners. 15-0116

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