1 features ?? 4 diferential channel 2x2 exchange switch ?? pci express? 3.0 performance, 8.0 gbps ?? bi-directional operation ?? low bit-to-bit skew: 10ps (between signals) ?? low crosstalk: -29db @ 2.5ghz (5gbps) - 20db @ 4.0ghz (8gbps) ?? low insertion loss: -1.1db @ 2.5ghz (5gbps) - 1.45db @ 4.0ghz (8gbps) ?? v dd operating range: 3.3v 10% ?? esd tolerance: 2kv hbm ?? packaging (pb-free & green): 3 0-contact, tqfn (zl30), 2.5 x 4.5mm. description pericom semiconductors PI3PCIE3242 is a diferential exchange switch featuring pass-through pinout. it supports one full pci express? lane 2x2 exchange switch operating at 8.0gbps pcie? 3.0 performance. with the select control input low, port a connects to port b, and port c connects to port d for an 8-channel diferential pass- though. when the select control input is high port a connects to port d, and port b connects to port c. block diagram truth table function sel oe# ax = bx cx = dx 0 0 ax = dx cx = bx 1 0 ax, bx, cx, dx = hi-z (disconnect) x 1 PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch a0+ a0- c0+ c0- b0+ b0- d0+ d0- a1+ a1- c1+ c1- b1+ b1- d1+ d1- sel oe# 1 2 3 4 5 6 7 8 9 10 11 12 13 28 27 26 25 24 23 22 21 20 19 18 17 16 nc vdd b0+ b0- d0+ d0- vdd gnd d1+ d1- vdd vdd a0+ a0- c0+ c0- sel gnd a1+ a1- c1+ c1- nc 14 15 oe# b1- gnd nc b1+ vdd 30 29 gnd gnd pin diagram 30-tqfn www.pericom.com 06/02/2014 all trademarks are property of their respective owners. 14-0087
2 application diagram in switching 2 lanes of dp1.2 & usb 3.0 signals over type c connector notebook or tablet dp0+ dp0- dp1+ dp1- tx+ tx- rx+ rx- aux+ hdp control d+ d- dp source usb2/3 controller a+ a- b+ b- d+ d- b+ b- d+ d- c+ c- c+ c- a- a+ PI3PCIE3242 sel 5vconn (option) tx1+ tx1- tx2+ tx2- rx1+ rx1- rx2+ rx2- cc1 cc2 rfu1 rfu2 vbus d- d- d+ d+ pd (option) type-c connector usb3.0 + dp 2x in drp port power switch sensing control trace <3mm aux+ aux hdp 5v-rp1 5v-rp2 0v-rd1 0v-rd2 outb0 outb1 outa0 outa1 0 1 0 1 0 1 0 1 pi3dbs3224 3.3v 3.3v 3.3v 3.3v enb inb sbo sbi sai sao ina ena www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
3 pin description (30-tqfn) pin # pin name i/o description 1 2 a0+ a0C i/o signal i/o, channel 0, port a 7 8 a1+ a1C i/o signal i/o, channel 1, port a 25 24 b0+ b0? i/o signal i/o, channel 0, port b 19 18 b1+ b1? i/o signal i/o, channel 1, port b 3 4 c0+ c0C i/o signal i/o, channel 0, port c 9 10 c1+ c1C i/o signal i/o, channel 1, port c 23 22 d0+ d0? i/o signal i/o, channel 0, port d 17 16 d1+ d1? i/o signal i/o, channel 1, port d 29 oe# i output enable, active low. when oe# = 0 the device i/o is enabled. when oe#=1, all i/o are high impedance 5 sel i operation mode select (when sel=0: ab, cd, when sel=1: ad, cb) 11, 15, 21, 26, 30 v dd pwr 3.3v 10% positive supply voltage 6, 13, 20, 28, center pad gnd pwr power ground 12, 14, 27 nc no connect www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
4 dc electrical characteristics for switching over operating range param - eters description test conditions (1) min ty p(1) max units v ih input high voltage guaranteed high level 0.65 x v dd v v il input low voltage guaranteed low level C0.5 0.35 x v dd v ik clamp diode voltage v dd = max., i in = C18ma C0.7 C1.2 i ih input high current, sel v dd = max., v in = v dd C10 +10 a i il input low current, sel v dd = max., v in = gnd C10 +10 i ih input high current, a x , b x , c x, d x v dd = max., v in = 1.8v C10 +10 a i il input low current, a x , b x , c x , d x v dd = max., v in = 0v C10 +10 note: 1. t ypical values are at vdd = 3.3v, ta = 25c ambient and maximum loading. switching characteristics parameters description test conditions min. ty p. max. units t pzh , t pzl line enable time - sel to a n , b n , c n , d n 0.5 45 ns t phz , t plz line disable time - sel to a n , b n , c n , d n 0.5 25 t b-b bit-to-bit skew within the same diferential pair 10 ps t ch-ch channel-to-channel skew 20 electrical characteristics recommended operating conditions symbol parameter conditions min ty p max units v dd 3.3v power supply 3.0 3.3 3.6 v i dd total current from v dd 3.3v supply sel and oe# at ov or v dd 200 a t case case temperature range for operation within spec. -40 85 celsius storage temperature .................................................... C65c to +150c supply voltage to ground potential ................................ C0.5v to +4.6v dc input voltage .............................................................. C0.5v 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. 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. ex- posure to absolute maximum rating conditions for extended periods may afect reliability. maximum ratings (above which useful life may be impaired. for user guidelines, not tested.) www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
5 dynamic electrical characteristics parameter description test conditions min. ty p. (1) max. units ddil diferential insertion loss (v in = -10dbm, dc = 0v) f=1.2ghz f=2.5ghz f=4.0ghz f=5.0ghz f=7.5ghz -0.8 -1.0 -1.3 -1.8 -4.5 -1.0 -1.2 -1.5 -2.0 -5.0 db ddil off diferential of isolation f= 4.0ghz -19 db ddrl diferential return loss f= 0 to 2.8ghz f= 2.8 to 5.0ghz f= 5.0 to 8.0ghz -26 -14 -7.5 db ddnext near end crosstalk f= 0 to 2.8ghz f= 2.8 to 5.0ghz f= 5.0 to 8.0ghz -26 -20 -16 db v i f max signal frequency range insertion loss 1.5db, v in =0.623vpp, dc=0v 4.0 ghz insertion loss 1.5db, v in =0.623vpp, dc=0.9v 4.0 insertion loss 3db, v in =0.623vpp, dc=0v 8.0 insertion loss 3db, v in =0.623vpp, dc=0.9v 8.0 bw -3db bandwidth 6.5 ghz notes: 1. g uaranteed by design. typical values are at v dd = 3.3v , t a = 25c ambient and maximum loading. www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
6 diferential insertion loss diferential return loss www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
7 diferential of isolation diferential crosstalk www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
8 8.0 gbps rx signal eye with PI3PCIE3242 8.0 gbps rx signal eye without PI3PCIE3242 + ? + ? balanced port1 dut + ? 50 50 + ? balanced port2 50 50 + ? + ? balanced port1 balanced port2 dut diferential insertion loss and return test circuit diferential of isolation test circuit diferential near end xtalk test circuit + ? + ? balanced port1 balanced port2 dut + ? 50 50 www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
9 switch positions test switch t plz , t pzl 3.0v t phz , t pzh gnd prop delay open switching waveforms voltage waveforms enable and disable times t plz v dd /2 v dd /2 v dd v oh 0v v ol 0.75v 0.75v t phz t pzl t pzh output 1 output 2 v ol v oh sel v ol + 0.15v v ol - 0.15v r t 4pf c l v dd v in v out 200-ohm 200-ohm 3.0v pulse generator d.u.t 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. o utput 1 is for an output with internal conditions such that the output is low except when disabled by the output control. ou tput 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 4. a ll input impulses are supplied by generators having the following characteristics: prr mhz, z o = 50?, t r 2.5ns, t f 2.5ns. 5. t e outputs are measured one at a time with one transition per measurement. www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
10 ordering information ordering code package code package description PI3PCIE3242zle zl 30-contact, tin fine pitch quad flat no-lead (tqfn) notes: ? t ermal characteristics can be found on the company web site at www.pericom.com/packaging/ ? " e" denotes pb-free and green ? a dding an "x" at the end of the ordering code denotes tape and reel packaging description: 30-contact, thin fine pitch quad flat no lead package (tqfn) package code: zl revision: -- notes: 1. all dimensions are in mm. angles in degrees. 2. refer jedec mo-220. 3. recommended land pattern is for reference only. document control #: pd-2172 date: 10/21/13 14-0006 note: for latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php packaging information: 30-contact tqfn (2.5x4.5mm) www.pericom.com 06/02/2014 all trademarks are property of their respective owners. PI3PCIE3242 3.3v pci express? 3.0 4 channel 2x2 exchange switch 14-0087
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