? semiconductor components industries, llc, 2011 august, 2011 ? rev. 0 1 publication order number: NCN2411/d NCN2411 4-channel differential 1:2 mux/demux switch for pci express gen2 the NCN2411 is a 4 ? channel dif ferential spdt switch designed to route pci express gen2 signals. when used in a pci express application, the switch can handle up to two pcie lanes. due to the ultra ? low on ? state capacitance (2 pf typ) and resistance (7.5 typ), this switch is ideal for switching high frequency signals up to a signal bit rate (br) of 5 gbps. this switch pinout is designed to be used in btx form factor desktop pcs and is available in a space ? saving 3.5x9x0.75 mm wqfn42 package. features ? v dd power supply from 1.5 v to 2.0 v ? 4 differential channels 2:1 mux/demux ? compatible with pcie 2.0 ? data rate: supports 5 gbps ? low crosstalk: ? 30 db @ 3 ghz ? low bit ? to ? bit skew: 5 ps ? low r on resistance: 13 max ? low c on capacitance: 2 pf ? low supply current: 200 a ? insertion loss: ? 2 db @ 3 ghz ? space saving, small wqfn ? 42 package ? this is a pb ? free device typical applications ? notebook computer ? desktop computer ? server/storage area network figure 1. application schematic pci express controller pcie slot NCN2411 a0 +/ ? a1 +/ ? a2 +/ ? a3 +/ ? b0 +/ ? b1 +/ ? b2 +/ ? b3 +/ ? c0 +/ ? c1 +/ ? c2 +/ ? c3 +/ ? pcie slot device package shipping ? ordering information NCN2411mttwg wqfn42 (pb ? free) 2000 / tape & reel wqfn42 case 510ap marking diagram http://onsemi.com ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our t ape and reel packaging specifications brochure, brd8011/d. 1 NCN2411 awlyywwg a = assembly location wl = wafer lot yy = year ww = work week g = pb ? free package
NCN2411 http://onsemi.com 2 figure 2. NCN2411 functional block diagram (top view) a0+ a0 ? a1+ a1 ? b0+ b0 ? b1+ b1 ? c0+ c0 ? c1+ c1 ? a2+ a2 ? a3+ a3 ? b2+ b2 ? b3+ b3 ? c2+ c2 ? c3+ c3 ? sel truth table function sel a n to b n l a n to c n h
NCN2411 http://onsemi.com 3 figure 3. pin description (top view) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 38 18 19 20 21 42 41 40 39 vdd gnd vdd gnd vdd gnd vdd gnd gnd a0+ b0+ gnd vdd a1+ a1 ? vdd sel gnd a2+ a2 ? vdd gnd a3+ a3 ? gnd b0 ? b1+ b1 ? c0+ c0 ? c1+ c1 ? vdd b2+ b2 ? b3+ b3 ? c2+ c2 ? c3+ c3 ? 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 a0 ? exposed pad on underside (connect to gnd)
NCN2411 http://onsemi.com 4 pin function and description pin pin name description 2, 3 a0+, a0 ? signal i/0, channel 0, port a 6, 7 a1+, a1 ? signal i/0, channel 1, port a 11, 12 a2+, a2 ? signal i/0, channel 2, port a 15, 16 a3+, a3 ? signal i/0, channel 3, port a 38, 37 b0+, b0 ? signal i/0, channel 0, port b 36, 35 b1+, b1 ? signal i/0, channel 1, port b 29, 28 b2+, b2 ? signal i/0, channel 2, port b 27, 26 b3+, b3 ? signal i/0, channel 3, port b 34, 33 c0+, c0 ? signal i/0, channel 0, port c 32, 31 c1+, c1 ? signal i/0, channel 1, port c 25, 24 c2+, c2 ? signal i/0, channel 2, port c 23, 22 c3+, c3 ? signal i/0, channel 3, port c 9 sel operational mode select (when sel = 0: a b, when sel = 1: a c) do not float this pin. 5, 8, 13, 18, 20, 30, 40, 42 vdd dc supply: 1.5 v to 2.0 v 1, 4, 10, 14, 17, 19, 21, 39, 41 gnd power ground exposed pad ? the exposed pad on the backside of package is internally connected to gnd. externally the pad should also be user ? connected to gnd. maximum ratings parameter symbol rating units power supply voltage v dd ? 0.5 to 2.5 v dc input/output voltage range of the switch (a n , b n , c n ) v is ? 0.5 to v dd v dc selection pin voltages v sel ? 0.5 to v dd v dc continuous current through one switch i cc 120 ma maximum junction temperature (note 1) t j 150 c operating ambient temperature t a ? 40 to +85 c storage temperature range t stg ? 65 to +150 c thermal resistance, junction ? to ? air r ja 75 c/w latch ? up current (note 2) i lu 100 ma human body model (hbm) esd rating (note 3) esd hbm 7000 v machine model (mm) esd rating (note 3) esd mm 400 v moisture sensitivity (note 4) msl level 1 ? stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. 1. power dissipation must be considered to ensure maximum junction temperature (t j ) is not exceeded. 2. latch up current maximum rating: 100 ma per jedec standard: jesd78. 3. this device series contains esd protection and passes the following tests: human body model (hbm) 7.0 kv per jedec standard: jesd22 ? a114 for all pins. machine model (mm) 400 v per jedec standard: jesd22 ? a115 for all pins. 4. moisture sensitivity level (msl): 1 per ipc/jedec standard: j ? std ? 020a.
NCN2411 http://onsemi.com 5 dc electrical characteristics over operating range (t a = ? 40 c to +85 c, v dd = 1.5 v to 2.0 v, gnd = 0v) symbol pins parameters conditions (note 5) min. typ (note 6) max. units power supply v dd v dd , gnd supply voltage range with respect to gnd 1.5 1.8 2.0 v i dd v dd , gnd quiescent supply current v dd = 2 v, v sel = gnd or v dd 200 300 a data switch performance v is a n , b n , c n data input/output voltage range 0 1.2 v r on b n on resistance (b n ) v dd = 1.5 v, v is = 0 v to 1.2 v, i is = 15 ma 7.5 13 r on c n on resistance (c n ) v dd = 1.5 v, v is = 0 v to 1.2 v, i is = 15 ma 8.0 13 r on(flat) b n on resistance flatness v dd = 1.5 v, v is = 0 v to 1.2 v, i is = 15 ma (note 7) 0.1 1.24 r on(flat) c n on resistance flatness v dd = 1.5 v, v is = 0 v to 1.2 v, i is = 15 ma (note 7) 0.1 1.24 r on b n on resistance matching(b n ) v dd = 1.5 v, v is = 0 v, i is = 15 ma (note 7) 0.35 r on c n on resistance matching(c n ) v dd = 1.5 v, v is = 0 v, i is = 15 ma (note 7) 0.35 c on a n to b n , a n to c n on capacitance f = 1 mhz, switch on, open output 2.0 pf c off a n to b n , a n to c n off capacitance f = 1 mhz, switch off 1.5 pf i on a n to b n , a n to c n on leakage current v dd = 2 v, v an = 0 v, 1.2 v, switch on to b n /c n , b n /c n pins are unconnected ? 1 +1 a i off a n to b n , a n to c n off leakage current v dd = 2 v, v an = 0 v, 1.2 v, switch off to b n /c n , v bn /v cn = 1.2 v, 0 v ? 1 +1 a logic input characteristics (sel pin) v ih sel input high voltage (note 7) 0.65 x v dd v dd v v il sel input low voltage (note 7) 0 0.35 x v dd v v ik sel clamp diode voltage v dd = max, i sel = ? 18ma ? 0.7 ? 1.2 v i ih sel input high current v dd = max, v sel = v dd 5 a i il sel input low current v dd = max, v sel = gnd 5 a switching characteristics t selon sel, a n , b n /c n line enable time sel to a n , b n , c n r l = 50 , c l = 20 pf 8.0 ns t seloff sel, a n , b n /c n line disable time sel to a n , b n , c n r l = 50 , c l = 20 pf 5.0 ns t b ? b a n , b n /c n bit ? to ? bit skew within the same differential pair 9.0 ps t ch ? ch a n , b n channel ? to channel skew maximum skew between all channels 50 ps 5. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type. 6. typical values are at v dd = 1.8 v, t a = 25 c ambient and maximum loading. 7. guaranteed by design and/or characterization.
NCN2411 http://onsemi.com 6 dc electrical characteristics over operating range (t a = ? 40 c to +85 c, v dd = 1.5 v to 2.0 v, gnd = 0v) symbol units max. typ (note 6) min. conditions (note 5) parameters pins dynamic electrical characteristics over operating range br a n to b n , a n to c n signal bit rate 5.0 gbps d il a n to b n , a n to c n differential insertion loss f = 3 ghz ? 2.0 db f = 100 mhz ? 0.7 db d ctk a n , b n , c n differential crosstalk f = 3 ghz ? 30 db f = 100 mhz ? 58 db d iso a n to b n , a n to c n differential off isolation f = 3 ghz ? 23 db f = 100 mhz ? 58 db d rl a n to b n , a n to c n differential return loss f = 3 ghz ? 6.0 db f = 100 mhz ? 22 db 5. for max. or min. conditions, use appropriate value specified under electrical characteristics for the applicable device type. 6. typical values are at v dd = 1.8 v, t a = 25 c ambient and maximum loading. 7. guaranteed by design and/or characterization.
NCN2411 http://onsemi.com 7 typical operating characteristics figure 4. pci express eye diagram at 5 gbps, 800 mvpp differential swing (minimum case) figure 5. differential off isolation figure 6. differential crosstalk figure 7. differential return loss figure 8. r on vs. v is ? 70 ? 60 ? 50 ? 40 ? 30 ? 20 ? 10 0 100000000 1e+09 1e+10 frequency (hz) magnitude (db) ? 90 ? 80 ? 70 ? 60 ? 50 ? 40 ? 30 ? 20 ? 10 0 frequency (hz) magnitude (db) ? 28 ? 24 ? 20 ? 16 ? 12 ? 8 ? 4 0 100000000 1e+09 frequency (hz) magnitude (db) 6 6.5 7 7.5 8 8.5 9 0 0.4 0.8 1.2 1.6 v is (v) r on , on resistance ( ) ? 100 ? 90 ? 80 100000000 1e+09 1e+10 1e+10 0.2 0.6 1 1.4
NCN2411 http://onsemi.com 8 parameter measurement information figure 9. differential insertion loss (s dd21 ) and differential return loss (s dd11 ) figure 10. differential off isolation (s dd21 ) figure 11. differential crosstalk (s dd21 ) figure 12. bit ? to ? bit and channel ? to ? channel skew figure 13. t on and t off figure 14. off state leakage figure 15. on state leakage t skew = |t plh1 -t plh2 | or |t phl1 -t phl2 |
NCN2411 http://onsemi.com 9 package dimensions wqfn42 3.5x9, 0.5p case 510ap ? 01 issue o notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeters. 3. dimension b applies to plated terminal and is measured between 0.15 and 0.30 mm from terminal tip. 4. coplanarity applies to the exposed pad as well as the terminals. ?? ?? ?? ?? ?? a d e b c 0.15 pin one reference top view side view bottom view a k d2 e2 c c 0.15 c 0.10 c 0.08 a1 seating plane e 42x note 3 b 42x 0.10 c 0.05 c a b b dim min max millimeters a 0.70 0.80 a1 0.00 0.05 b 0.20 0.30 d 3.50 bsc d2 1.95 2.15 e 9.00 bsc e2 7.45 7.65 e 0.50 bsc k 0.20 ??? l 0.30 0.50 22 38 42x 0.50 pitch 3.80 0.63 9.30 dimensions: millimeters 0.35 42x 1 l a3 0.20 ref recommended note 4 a3 detail b 2.16 1 package outline detail a e/2 l1 detail a l alternate terminal constructions l 0.00 0.15 17 mounting footprint* 0.10 c a b 0.10 c a b *for additional information on our pb ? free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5773 ? 3850 NCN2411/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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