1 ps8989a 12/04/09 features ? 2 differential channel, 4:1 mux/demux ? pci express ? 2.0 performance, 5.0 gbps ? low bit-to-bit skew, 7ps max. ? low crosstalk: -23db@3ghz ? low off isolation: -23db@3ghz ? v dd operating range: +1.8v ? esd tolerance 2kv hbm on data i/o ? packaging (pb-free & green): ? 42 contact tqfn description pericom semiconductor?s pi2pcie2214 is a 8 to 2 differential channel multiplexer/demultiplexer switch. due to its low bit- to-bit skew, high channel-to-channel noise isolation and high bandwidth, this product is ideal for pci express ? switching to 5.0 gbps. application switch a pci express ? lane output between four pci express lane inputs block diagram pin description pi2pcie2214 pci express ? 2.0, 1-lane, 4:1 mux/demux switch a0- a0+ a1- a1+ b0- b0+ b1- b1+ c0- c0+ c1- c1+ d0- d0+ d1- d1+ z0- z0+ z1- z1+ decode sb sa sd sc sel0 sel1 sa sb sc sd truth table sel1 sel0 function 00 z to a 01 z to b 10 z to c 11 z to d 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 42 41 40 39 18 19 20 21 a0+ a0- a1+ a1- b0+ b0- b1+ b1- v dd c0+ c0- c1+ c1- d0+ d0- d1+ d1- gnd sel0 sel1 v dd gnd gnd z0+ z0- v dd z1+ z1- gnd gnd v dd gnd gnd gnd v dd gnd v dd gnd v dd gnd v dd gnd v ss 09-0107
2 pi2pcie2214 pci express? 2.0, 1-lane, 4:1 mux/demux switch ps8989a 12/04/09 dc electrical characteristics for switching over operating range (t a = ?40c to +85c, v dd = 1.8v 0.1v) parameter description test conditions min. typ. (2) max. units v ih input high voltage guaranteed high level 0.65 x v dd -- v v il input low voltage guaranteed low level - - 0.35 x v dd v ik clamp diode voltage v dd = max., i in = ?18ma - -0.7 -1.2 i ih input high current v dd = max., v in = v dd --5 a i il input low current v dd = max., v in = gnd - - 5 storage temperature ......................................... ?65c to +150c supply voltage to ground potential .................... ?0.5v to +2.5v dc input voltage ................................................. ?0.5v to +v dd dc output current ........................................................... 120ma power dissipation ................................................................ 0.5w note: stresses greater than those listed under maximum ratings may cause permanent damage to the device. this 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 speci cation is not implied. exposure to absolute maximum rating conditions for extended periods may af fect reliability. maximum ratings (above which useful life may be impaired. for user guidelines, not tested.) power supply characteristics parameters description test conditions (1) min. typ. (2) max. units i cc quiescent power supply current 200 300 a notes: 1. for max. or min. conditions, use appropriate value speci ed under electrical characteristics for the applicable device type. 2. typical values are at v dd = 1.8v, t a = 25c ambient and maximum loading. notes: 1. for max. or min. conditions, use appropriate value speci ed under electrical characteristics for the applicable device type. switching characteristics (t a = -40o to +85oc, v dd = 1.8v 0.1v) parameter description min. typ. (2) max. units t pzh , t pzl line enable time - sel to a n , b n 0.5 - 8.0 ns t phz , t plz line disable time - sel to a n , b n 0.5 - 10 t b-b bit-to-bit skew within the same differential pair 7ps t ch-ch channel-to-channel skew 35 ps dynamic electrical characteristics over the operating range (t a = -40o to +85oc, v dd = 1.8v 0.1v) parameter description test conditions (1) min. typ. (2) max. units x talk crosstalk f = 2.5 ghz -40 db o irr off isolation f = 2.5 ghz -25 db i loss differential insertion loss f= 2.5 ghz -3.0 db bw bandwidth -3db 2.6 ghz notes: 1. guaranteed by design. 2. typical values are at v dd = 1.8v, t a = 25c ambient and maximum loading. 09-0107
3 pi2pcie2214 pci express? 2.0, 1-lane, 4:1 mux/demux switch ps8989a 12/04/09 insertion loss crosstalk 09-0107
4 pi2pcie2214 pci express? 2.0, 1-lane, 4:1 mux/demux switch ps8989a 12/04/09 off isolation signal eye with switch signal eye without switch 09-0107
5 pi2pcie2214 pci express? 2.0, 1-lane, 4:1 mux/demux switch ps8989a 12/04/09 + ? + ? balanced port1 dut + ? 50 50 + ? balanced port2 50 50 diff. near end xtalk test circuit + ? + ? balanced port1 balanced port2 dut + ? 50 50 diff. off isolation test circuit + ? + ? balanced port1 balanced port2 dut diff. insertion loss and return test circuit switching waveforms voltage waveforms enable and disable times t plz v dd /2 v dd /2 v dd v oh 0v v ol v dd/2 v oh ?0.3v v ol +0.3v v dd/2 t phz t pzl t pzh output output v ol v oh sel switch positions test switch t plz , t pzl 2 x v dd t phz , t pzh gnd prop delay open 4 200 200 2 p test circuit for electrical characteristics (1-5) notes: 1. c l = load capacitance: includes jig and probe capacitance. 2. r t = termination resistance: should be equal to z out of the pulse generator 3. output 1 is for an output with internal conditions such that the output is low except when disabled by the output control. output 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 4. all input impulses are supplied by generators having the following characteristics: prr mhz, z o = 50, t r 2.5ns, t f 2.5ns. 5. the outputs are measured one at a time with one transition per measurement. 09-0107
6 pi2pcie2214 pci express? 2.0, 1-lane, 4:1 mux/demux switch ps8989a 12/04/09 package mechanical: 42-contact tqfn (zh) pericom semiconductor corporation ? 1-800-435-2336 ? www.pericom.com ordering information ordering code package code package type PI2PCIE2214ZHE zh pb-free & green, 42-contact tqfn notes: ? thermal characteristics can be found on the company web site at www.pericom.com/packaging/ ? "e" denotes pb-free and green ? adding an "x" at the end of the ordering code denotes tape and reel packaging 1 description: 42-contact thin fine pitch quad flat no-lead (tqfn) package code: zh (zh42) document control #: pd-2035 revision: c date: 02/17/09 notes: 1. all dimensions are in millimeters, angles in degrees. 2. coplanarity applies to the exposed thermal pad as well as the terminals. 3. refer jedec mo-220 4. recommended land pattern is for reference only. 5. thermal pad soldering area 09-0116 all trademarks are property of their respective owners. 09-0107
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