AMRI-2000-P000 mobile navigation interface ic for slider mechanical module data sheet description thef amri-2000f isf af lowf powerf multif modef navigationf sensef andf interfacef icf designedf forf usef withf thef amrsf andf amrtf seriesf off navigationf padf modulesf tof providef afhigh-accuracyfanalogfpointingfsolutionfforfmobilefap - plications.ff inf combinationf withf thef amrs/amrtf navigationf padsf thef amri-2000f canf providef af mouse-likef cursorf controlf interface,f analogf joystickf cursorf control,f four-wayf orf eight-wayf switchf functionality,f asf wellf asf scroll-wheelf emulation.ffthisfcombinationfoffanalogfandfdigitalfcursorf controlf providesf improvedf webf browsingf andf graphicalf userf interfacef forf nextf generationf mobilef phonesf asf wellf asf backwardf compatiblef rockerf andf scroll-wheelf emulationfforfexistingfuserfinterfaces.ff thef operatingf modef canf bef dynamicallyf reconfguredf tof providef thef bestf userf navigationf experiencef forf anyf activef application.f forf example,f thef operatingf systemf mayfselectfjoystickfmodefforfwebfbrowsingfandfgaming,f scrollfwheelfmodefforfphonefbookfscrolling,fwhilefmenuf navigationfisfdonefwithfthefbackwardfcompatiblef4-wayf switchf modeCf alwaysf optimizedf andf userf confgurablef forfanyfapplication. comparedf tof competingf solutions,f thef amri-2000f combinedf withf avagosf amrs/amrtf seriesf navigationf padsf isf uniquef inf itsf abilityf tof providef superiorf tactilef feedbackfasfwellfasfmultiplefintuitivefoperatingfmodesfinf afcompactfformffactor. features ? 360fdegreefnavigation ? dynamicallyfreconfgurablefmultimodefoperation:f ? analogfjoystickfmode ? mousefmode ? 4-wayf/f8-wayfrockerfswitchfemulationfmodes ? scrollfwheelfmode ? upftof250hzfupdatefrate ? overf 2000f dpif resolutionf withf amrs/amrtf puckf module ? internalfclockf ? automaticfcalibration ? automaticfgainfadjustment ? automaticfpowerfsavingfsleepffunction ? 1.4fmwfoperatingfpower1f(footnote:fwithf25%frunfratef whilefnavigating) ? 0.2f mwf standbyf powerf withf wakef onf motion2f (footnote:fwithf1fhzfsamplingfrate) ? 60fwfpowerfinfshutdownfmode ? f 1.8vfandf2.8vfsupplyfvoltage ? 1.8vfi/ofvoltage ? compactfformffactorfinfstandardf4fmmfxf4fmmftqfnf package ? two-wiref serialf interfacef orf four-wiref spif interfacef (selectable) applications ? mobilefphonesfandfsmartfphones ? computerfperipherals ? pdas,fsub-notebookfandflaptopfpcs ? remotefcontrols ? mobilefmultifmediafplayers ? videofgamefcontrollers component image figure 1. amri-2000 in 4 mm x 4 mm tqfn package
i / o u p r o c e ss o r c o n f i g u r a t i o n r eg i s t e r s m o t i o n b u ff e r n a v i ga t i o n f w m ob il e d e v i c e p r o c e ss o r n a v i ga t i o n p a d m o t i o n i n t e r up t v dd a v dd d p o w e r d o w n / r e s e t a n a l og i n t e r f a ce i / o s e l e ct 4 - w i r e sp i o r t w o - w i r e i n t e r f a ce figure 2. block diagram autogain and autocalibration thef amri-2000f hasf internalf routinesf forf autocalibrationf andfautogain.ffwhenfusedfwithfamrs/amrtfpuckfassem - bliesf withf properlyf designedf pcbf layoutsf (seef applica - tionf notef xxx)f thef icf willf automaticallyf fndf appropriatef thresholdf levelsf tof recognizef userf touchf andf clicks.f f inf raref circumstancesf thesef canf bef manuallyf confguredf iff necessary. thef amri-2000f alsof hasf built-inf automaticf gainf adjust - ment,fsofitfcanfseamlesslyfoperatefwithfafrangefoffcapaci - tivef pucks.f fthef amri-2000f willf automaticallyf selectf thef optimalfgainfforfbestfsensingfperformance.ffalthoughfnotf recommended,fthefgainfsettingfcanfbefmanuallyfoverrid - denfiffdesired.f theory of operation thef amri-2000f includesf af singlef drivef channelf andf fourf capacitivef sensef electrodes.f f thef amrs/amrtf modulesf includef af conductivef slidingf diskf whichf couplesf signalf fromf thef drivef tof thef sensef electrodes,f allowingf thef amri-2000ftofaccuratelyfdeterminefpuckfposition,fasfwellf asfmeasuredfthefuser-appliedfverticalfforces.ffalgorithmsf withinfthefamri-2000fprocessfthefforcefandfdisplacementf informationf tof generatef cursorf controlf data.f fthef cursorf controlfoutputfisfavailablefoverfspiforftwifbus.f thef slidingf diskf off thef amrs/amrtf modulef mayf bef movedf inf anyf directionf withf excellentf tactilef feel,f andf isf returnedf tof centerf byf thef proprietaryf springf re- centeringf system.f f af selectionf orf clickingf operationf canf bef performedf anywheref inf thef feldf off motionf byf fullyf depressingf thef slidingf disk.f f positivef tactilef feedbackf isf providedf fromf af domef switchf containedf withinf thef slidingf disk.f althoughf thef measurementf isf capacitive- based,f itf doesf notf dependf onf fngerf capacitance,f sof thef devicefcanfbefusedfwhilefwearingfgloves.
navigation modes thef amri-2000f providesf fourf primaryf navigationf modes:f joystick,f mouse,f rockerf emulationf andf scrollf wheelf emulation.f f joystickf modef andf mousef modef aref forf analogf cursor,f suchf asf af windowsf pcf environment.ff rockerfmodefandfscroll-wheelfmodefarefforfusefinficon- basedfsystems,fconventionallyfcontrolledfwithfd-padsforf 5-wayfdigitalfjoysticks. joystick mode inf joystickf modef thef positionf off thef puckf controlsf thef velocityf andf directionf off thef cursorf motion.f f inf general,f theffurtherfthefpuckfisfmovedffromftheforigin,ftheffasterf thefcursorfwillfmove.fftheffngerfsensingfcapabilityfoffthef systemfisfusedftofdetectfwhenfthefpuckfisfbeingftouched,f softhatfnofdriftingfoffthefcursorfoccursfwhenfthefpuckfisf notfbeingftouched.ffbecausefoffthisffngerfsenseffeature,f almostfnofdeadzonefisfrequiredfaroundfthefpuckforigin,f enablingfhighlyfresponsivefnavigation.ffsincefthefbuttonf canf bef clickedf anywheref inf thef feldf off motion,f joystickf modefalsofsupportsfone-handedfdragfandfdropffunction - ality. mouse mode infmousefmodefthefpuckfpositionfdirectlyfcorrespondsftof thefcursorfposition,fasfitfdoesfwithfaftraditionalfdesktopf computerfmouse.ffthisfenablesfafhighlyfresponsivefnavi - gationfexperiencefiffthefpuckfhasfsufcientftravel.ffwhenf thefpuckfisfreleasedftheffngerfsensorfsuppressesffurtherf cursorf motion.f f evenf thoughf thef springf systemf returnsf thef puckf tof thef origin,f thef cursorf remainsf wheref itf wasf whenfthefpuckfwasflastftouched.ffthisfallowsfforfskating,f asfwithfafdesktopfmouse.ff thef diferencef betweenf joystickf andf mousef modesf canf bef understoodf withf thef followingf example.f f supposef thefuserfmovesfthefpuckfwithfconstantfvelocityffromfthef centerfpositionftofthefuppermostfposition,fholdsfitftheref forf af moment,f andf thenf releasesf thef puck.f f inf joystickf modef thef cursorf willf movef upwardsf withf increasingf velocityf(asfthefpuckfradiusfincreases),fandfthenfcontinuef tof movef atf thef fnalf velocityf whilef thef puckf isf heldf sta - tionaryfatfthefperimeter.ffwhenfthefpuckfisfreleased,fthef cursorf stopsf moving.f f inf mousef mode,f thef cursorf willf movef upwardsf withf thef puckf atf constantf velocity.f f asf soonfasfthefpuckfstopsfmovingfthefcursorfwillfalsofstopf moving.ffwhenfthefpuckfisfreleased,fthefspringsfwillfcausef itftofre-center,fbutfthefcursorfwillfremainfstationary. rocker mode infrockerfmodefdigitalfsignalsfforfup,fdown,fleftfandfrightf aref generatedf whenf thef puckf movesf fromf thef centerf positionf beyondf af pre-determinedf radius.f f thef nextf signalf isf generatedf whenf thef puckf hasf returnedf insidef thisfradiusfandfcrossesfitfagainfmovingfoutward.ffafseriesf off upwardf gesturesf withf thef puckf willf generatef af seriesf off stepsf upf throughf af listf orf icons,f thef samef asf repeat - edlyf pressingf thef upf keyf onf af 5-wayf pad.f f rockerf modef supportsf af fullyf confgurablef auto-repeatf featuref iff thef puckfisfheldfatfthefperimeter.ffrockerfmodefcanfalsofbef confguredfforf8-wayfmotion. pu c k pu c k pu c k figure 3. illustration of 4-way rocker mode algorithm. scroll mode infscrollfmodefiffthefpuckfisftranslatedfinfafcircularfmotionf (outsidef af predeterminedf radius)f thef amri-2000f willf outputf af seriesf off signalsf tof stepf upf orf downf throughf af list.ffthisfgivesfafuserfthefabilityftofrapidlyfnavigateflongf menus,f suchf asf e-mailf orf songf indexes.f fthef numberf off stepsf perf revolutionf isf user-confgurable,f asf isf thef scrollf directionfandfthefinitialfangularfchangeftofstartfscrolling. pu c k pu c k figure 4. illustration of 2-d scroll mode algorithm. afvariationfonfscrollfmodefisf2dfscrollfmode,finfwhichfthef amri-2000fcanfbefusedftofscrollfeitherfverticallyforfhori - zontallyf throughf af 2-df matrixf off icons.f fthef initialf radialf gesturesf setsf whetherf thef scrollingf willf bef horizontalf orf vertical. scrollf modef andf rockerf modef canf bothf bef activef simul - taneously.f f radialf gesturesf willf causef 4-wayf orf 8-wayf steppingf asf normal,f butf iff thef userf beginsf movingf inf af circularfmotion,fscrollingfwillfautomaticallyfbegin.
pin pin name spi two-wire interface (twi) i/o description 1 io_clk sclk(i) scl (i) i serial clock signal io_miso_sda miso(o) sda (io) i/o twi mode: sda (serial data) signal spi mode: miso (master in slave out) signal io_mosi_a0 mosi(i) a0 (i) i/o address select when used as twi, addr[0], states spi mode: mosi (master out slave in) signal io_ncs_a1 ncs (i) a1 (i) i address select when used as twi, addr[1], states spi mode: ncs (chip select) signal 5 reserved i connect to vddd 6 reserved i connect to ground 7 reserved o no connection 8 reserved i connect to ground 9 reserved o no connection 10 motion o motion interrupt pin 11 vddd p supply voltage for logic interface 1 drive o analog drive to center electrode 1 gnd p connect to ground 1 reserved a no connection 15 slider_sense1 a analog sense 16 slider_sense a analog sense 17 slider_sense a analog sense 18 slider_sense a analog sense 19 vdda p vdda 0 gnd p connect to ground 1 nrst_nshd i reset and shutdown reserved p connect to ground reserved p connect to ground io_select i/o spi/twi select high = spi table 1. pinout note:fi/of=fdigitalfinput/outputfaf=fanalogfpf=fpower
5 figure 5. amri-2000 recommended schematic io_sel 24 io_clk 1 io_miso_sda 2 io_miso_a0 3 io_ncs_a1 4 reserved 6 reserved 7 reserved 8 reserved 9 reserved 5 motion 10 vddd 11 drive 12 gnd 13 sense1 15 sense2 16 sense3 17 sense4 18 reserved 14 vdda 19 reserved 22 nrst 21 gnd 20 reserved 23 amri-2000 vdda2.8v vddd1.8v gnd sda scl nrst irq vddd1.8v io_miso_sda io_clk_scl n o i t o m t s r n sense1 sense2 sense3 sense4 drive gnd gnd io_select io_mosi_a0 io_ncs_a1 2.7 r 100nf c gnd vdda2.8v 100nf c 2.7 r gnd 0 rspi 0 rtwi vddd gnd e2e3 e4 e1 drive 0 rtwi 0 rtwi 0 rtwi 0 rtwi vddd vddd vddd gnd gnd for twi mode chip address selection leave a0/a1 open or connect to either vddd or gnd assemble either rspi or rtwi vdda2.8v vddd1.8v gnd miso clk nrst irq twi mode signals spi mode signals a0 a1 ncs mosi vdda gnd vddd gnd gnd interface spi or twi gnd
6 symbol common dimensions milimeter dimensions inch min. nom. max. min. nom. max. a 0.700 0.750 0.800 0.07 0.09 0.01 a 0.1950 0.00 0.110 0.0077 0.0080 0.008 b 0.1800 0.00 0.000 0.0070 0.0090 0.010 d .950 .0000 .0750 0.150 0.1570 0.1600 e .950 .0000 .0750 0.150 0.1570 0.1600 e 0.500 bsc 0.00 bsc l 0.000 0.500 0.000 0.100 0.100 0.1600 ic package (tqfn) and connections to navigation pad figure 6. ic dimensions (bottom and side view) figure 7. recommended solder pad pitch and dimensions 13 14 15 16 17 18 6 7 8 9 10 11 12 24 23 22 21 20 19 5 4 3 2 1 0.5 0.3 1.25 0.675 2.7 2.7 3.15
7 absolute maximum ratings parameter symbol minimum maximum units notes storage temperature t s -0 85 c operating temperature t a -5 70 c supply voltage v dda -0.5 .6 v esd 000 v all pins, human body model mil 88 method 015 input voltage transients v tr +/- 0.v v i/o voltage v io v ddd +0.v v lead solder temp 60 c recommended operating conditions parameter symbol minimum typical maximum units notes operating temperature t a -5 70 c power supply voltage v dda .5 .8 .6 volts i/o supply voltage v ddd 1.6 1.8 1.98 volts i/os must be below v ddd supply noise v n 50 mv peak to peak within 0-1 mhz bandwidth dc electrical specifcations electricalfcharacteristicsfoverfrecommendedfoperatingfconditions.f(typicalfvaluesfatf25fc,fv dda f=f2.8fv,fv ddd f=f1.8vf defaultfregisterfvalues) parameter symbol minimum typical maximum units notes system current, run mode i dd5 . 5. ma navg = 0x 0 system current, rest modes i rest ma see rest mode section rest1 1.5 . ma wakeup time ~ 0ms, register 0x 6 set to 0x05 rest 0. 0.6 ma wakeup time ~100ms, register 0x a default value 0x1d rest 0.07 0.17 ma wakeup time ~1s, register 0x e default value 0xff system current, shutdown i dd5n 5 170 a resolution res tbd tbd counts input/output levels input high voltage v ih -0.6 0. v voltage is relative to v ddd (0.65 v ddd per jedec87) input low voltage v il -0. 0.6 v voltage is relative to ground (0. 5 gnd per jedec87) output high voltage v oh -0. 0 v voltage is relative to v ddd (per jedec87) output low voltage v ol 0 0. v voltage is relative to ground (per jedec87) output low current i ol -1. ma at v ol output high current i oh 0.6 ma at v oh input leakage current 1.9 9. a input ofstate leakage current 0.0 0.0 a
8 ac electrical specifcations electricalfcharacteristicsfoverfrecommendedfoperatingfconditions.fftypicalfvaluesfatf25fc,fv dda =2.8fv parameter symbol min. typical max. units notes power up delay t pup 5 ms from the time vdda reaches .8v until normal operation motion refresh rate f refresh 50 hz two-wire interface speed 00 khz -wire spi interface speed mhz spi interface specifcations parameter symbol min. typical max. unit comment spi port clock frequency s clk mhz 50% duty cycle miso rise time t r-miso 150 ns cl = 100pf miso fall time t f-miso 150 ns cl = 100pf miso delay after sclk t dly-miso 10 ns from sclk falling edge to miso data valid, no load conditions miso hold time t hold-miso 0.5 1/fsclk m s data held until next falling sclk edge mosi hold time t hold-mosi 00 ns amount of time data is valid after sclk rising edge mosi setup time t setup-mosi 10 ns from data valid to sclk rising edge spi read address-data delay t s-rad m s from rising sclk for last bit of the address byte, to falling sclk for frst bit of data being read. ncs to sclk active t ncs-sclk 00 ns from ncs falling edge to frst sclk rising edge sclk to ncs inactive (for read operation) t sclk-ncs 10 ns from last sclk rising edge to ncs rising edge, for valid miso data transfer sclk to ncs inactive (for write operation) t sclk-ncs 0 m s from last sclk rising edge to ncs rising edge, for valid mosi data transfer ncs to miso high-z t ncs-miso 500 ns from ncs rising edge to miso high-z state
avagos products and software are not specifically designed, manufactured or authorized for sale as parts, components or assemblies for the planning, construction, maintenance or direct operation of a nuclear facility or for use in medical devices or applications. customer is solely re - sponsible, and waives all rights to make claims against avago or its suppliers, for all loss, damage, expense or liability in connection with such use. warning : these devices are electrostatic discharge (esd) sensitive. the following precautions are strongly recommen d ed. ensure that an esd approved carrier is used when units are transported from one destination to another. personal grounding is to be worn at all times handling these devices. failure to observe proper esd handling precautions will void warranties. refer to avago application note a004r: electrostatic discharge damage and control. twi interface specifcations parameter symbol min. max. unit scl clock frequency f scl 00 khz hold time (repeated) start condition. after this period the frst clock pulse is generated. t hd:sta 0.6 low period of the scl clock t low 1. m s high period of the scl clock t high 0.6 m s set-up time for a repeated start condition t su:sta 0.6 m s data hold time for cbus compatible masters (see note, section 10.1. for i c compatible devices) t hd:dat 0 () 0.9 () m s m s data set-up time t su:dat 100 ns rise time of both sda and scl signals t r 0+0.1cb (5) 00 ns fall time of both sda and scl signals t f 0+0.1cb (5) 00 ns set-up time for stop condition t su:sto 0.6 m s bus free time between a stop and start condition t buf 1. m s capacitive load for each bus line c b 00 pf noise margin at the low level for each connected device (including hysteresis) v nl 0.1vddd v noise margin at the high level for each connected device (including hysteresis) v nh 0.vddd v notes: 1.f allfvaluesfreferredftofv ihmin fandfv ilmax flevelsf(seeftablef4) 2.f afdevicefmustfinternallyfprovidefafholdftimefoffatfleastf300fnsfforfthefsdafsignalf(referredftofthefv ihmin foffthefsclfsignal)ftofbridgefthefundefnedf regionfofftheffallingfedgefoffscl. 3.f thefmaximumft hd:dat fhasfonlyftofbefmetfiffthefdevicefdoesfnotfstretchftheflowfperiodf(t low )foffthefsclfsignal. 4.f affast-modefi 2 c-busfdevicefcanfbefusedfinfafstandard-modefi 2 c-busfsystem,fbutfthefrequirementft su:dat ff250fnsfmustfthenfbefmet.fthisfwillf automaticallyfbefthefcasefiffthefdevicefdoesfnotfstretchftheflowfperiodfoffthefsclfsignal.fiffsuchfafdevicefdoesfstretchftheflowfperiodfoffthef sclfsignal,fitfmustfoutputfthefnextfdatafbitftofthefsdaflineft rmax f+ft su:dat f=f1000f+f250f=f1250fnsf(accordingftofthefstandard-modefi 2 c-busf specifcation)fbeforefthefsclflinefisfreleased. for product information and a complete list of distributors, please go to our web site: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies, limited in the united states and other countries. data subject to change. copyright ? 007 avago technologies limited. all rights reserved. av0 -0705en - february 1, 008
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