100-Tap Digitally Programmable Potentiometer (DPP )

Transcription

1 00-Tap igitally Programmabl Potntiomtr ( ) CT FTURS 00-position linar tapr potntiomtr Non-volatil PROM wipr storag 0n ultra-low standby currnt Singl supply opration:.v.0v Incrmnt up/down srial intrfac Rsistanc valus: kω, 0kΩ, 0kΩ and 00kΩ vailabl in PIP, SOIC, TSSOP and MSOP packags PPICTIONS utomatd product calibration Rmot control adjustmnts Offst, gain and zro control Tampr-proof calibrations Contrast, brightnss and volum controls Motor controls and fdback systms Programmabl analog functions For Ordring Information dtails, s pag. SCRIPTION Th CT is a singl digitally programmabl potntiomtr ( ) dsignd as a lctronic rplacmnt for mchanical potntiomtrs. Idal for automatd adjustmnts on high volum production lins, thy ar also wll suitd for applications whr quipmnt rquiring priodic adjustmnt is ithr difficult to accss or locatd in a hazardous or rmot nvironmnt. Th CT contains a 00-tap sris rsistor array connctd btwn two trminals R H and R. n up/ down countr and dcodr that ar controlld by thr input pins, dtrmins which tap is connctd to th wipr, R W. Th wipr stting, stord in nonvolatil mmory, is not lost whn th dvic is powrd down and is automatically rinstatd whn powr is rturnd. Th wipr can b adjustd to tst nw systm valus without affcting th stord stting. Wipr-control of th CT is accomplishd with thr input control pins, CS, U/, and INC. Th INC input incrmnts th wipr in th dirction which is dtrmind by th logic stat of th U/ input. Th CS input is usd to slct th dvic and also stor th wipr position prior to powr down. Th digitally programmabl potntiomtr can b usd as a thr-trminal rsistiv dividr or as a twotrminal variabl rsistor. FUNCTION IGRM V CC U/ INC CS -BIT UP/OWN COUNTR 0 R H R H R H 9 U/ INC CS Control and Mmory Powr On Rcall GN R W R V CC GN -BIT NONVOTI MMORY STOR N RC CONTRO CIRCUITRY ON OF THIRTY TWO COR 0 TRNSFR GTS RSISTOR RRY R RW R W R Gnral taild lctronic Potntiomtr Implmntation 00 Catalyst Smiconductor, Inc. oc. No. M-009 Rv. T

2 CT PIN CONFIGURTION PIP -ad () SOIC ad (V) MSOP ad (Z) INC U/ R H GN CT V CC CS R R WB TSSOP ad (Y) CS V CC INC U/ CT R R WB GN R H PIN SCRIPTIONS Nam Function INC Incrmnt Control U/ Up/own Control R H Potntiomtr High Trminal GN Ground R W Wipr Trminal R Potntiomtr ow Trminal CS Chip Slct Supply Voltag V CC PIN SCRIPTION INC : Incrmnt Control Input Th INC input movs th wipr in th up or down dirction dtrmind by th condition of th U/ input. U/ : Up/own Control Input Th U/ input controls th dirction of th wipr movmnt. Whn in a high stat and CS is low, any high-to-low transition on INC will caus th wipr to mov on incrmnt toward th R H trminal. Whn in a low stat and CS is low, any high-to-low transition on INC will caus th wipr to mov on incrmnt towards th R trminal. R H : High nd Potntiomtr Trminal R H is th high nd trminal of th potntiomtr. It is not rquird that this trminal b connctd to a potntial gratr than th R trminal. Voltag applid to th R H trminal cannot xcd th supply voltag, V CC or go blow ground, GN. R W : Wipr Potntiomtr Trminal R W is th wipr trminal of th potntiomtr. Its position on th rsistor array is controlld by th control inputs, INC, U/ and CS. Voltag applid to th R W trminal cannot xcd th supply voltag, V CC or go blow ground, GN. R : ow nd Potntiomtr Trminal R is th low nd trminal of th potntiomtr. It is not rquird that this trminal b connctd to a potntial lss than th R H trminal. Voltag applid to th R trminal cannot xcd th supply voltag, V CC or go blow ground, GN. R and R H ar lctrically intrchangabl. CS : Chip Slct Th chip slct input is usd to activat th control input of th CT and is activ low. Whn in a high stat, activity on th INC and U/ inputs will not affct or chang th position of th wipr. VIC OPRTION Th CT oprats lik a digitally controlld potntiomtr with R H and R quivalnt to th high and low trminals and R W quivalnt to th mcha nical potntiomtr's wipr. Thr ar 00 availabl tap positions including th rsistor nd points, R H and R. Thr ar 99 rsistor lmnts connctd in sris btwn th R H and R trminals. Th wipr trminal is connctd to on of th 00 taps and controlld by thr inputs, INC, U/ and CS. Ths inputs control a svn-bit up/down countr whos output is dcodd to slct th wipr position. Th slctd wipr position can b stord in non-volatil mmory using th INC and CS inputs. With CS st OW th CT is slctd and will rspond to th U/ and INC inputs. HIGH to OW transitions on INC wil incrmnt or dcrmnt th wipr (dpnding on th stat of th U/ input and svn-bit countr). Th wipr, whn at ithr fixd trminal, acts lik its mchanical quivalnt and dos not mov byond th last position. Th valu of th countr is stord in nonvolatil mmory whnvr CS transitions HIGH whil th INC input is also HIGH. Whn th CT is powrd-down, th last stord wipr countr position is maintaind in th nonvolatil mmory. Whn powr is rstord, th contnts of th mmory ar rcalld and th countr is st to th valu stord. With INC st low, th CT may b d-slctd and powrd down without storing th currnt wipr position in nonvolatil mmory. This allows th systm to always powr up to a prst valu stord in non - volatil mmory. oc. No. M-009 Rv. T 00 Catalyst Smiconductor, Inc.

3 CT OPRTION MOS INC CS U/ Opration High to ow ow High Wipr toward H High to ow ow ow Wipr toward High ow to High X Stor Wipr Position ow ow to High X No Stor, Rturn to Standby X High X Standby BSOUT MXIMUM RTINGS () Paramtrs Ratings Units Supply Voltag V CC to GN -0. to V V Inputs CS to GN -0. to V CC 0. V INC to GN -0. to V CC 0. V U/ to GN -0. to V CC 0. V H to GN -0. to V CC 0. V to GN -0. to V CC 0. V W to GN -0. to V CC 0. V RIBIITY CHRCTRISTICS Paramtrs Ratings Units Oprating mbint Tmpratur Commrcial ( C or Blank suffix) 0 to 0 ºC Industrial ( I suffix) -0 to ºC Junction Tmpratur 0 ºC Storag Tmpratur - to 0 ºC ad Soldring (0s max) 00 ºC Symbol Paramtr Tst Mthod Min Typ Max Units () V ZP S Suscptibility MI-ST-, Tst Mthod V () () I TH atch-up JC Standard 00 m T R ata Rtntion MI-ST-, Tst Mthod Yars N N nduranc MI-ST-, Tst Mthod 00,000,000 Stors C CTRIC CHRCTRISTICS VCC =.V to V unlss othrwis spcifid Powr Supply Symbol Paramtr Conditions Min Typ Max Units V CC Oprating Voltag Rang..0 V I CC Supply Currnt (Incrmnt) V CC = V, f = MHz, I W = 0 00 µ V CC = V, f = 0kHz, I W = 0 0 µ I CC Supply Currnt (Writ) Programming, V CC = V 000 µ V CC = V 00 µ () CS = V I SB Supply Currnt (Standby) CC - 0.V U/, INC = V CC - 0.V or GN 0.0 µ Nots: () Strsss abov thos listd undr bsolut Maximum Ratings may caus prmannt damag to th dvic. Ths ar strss ratings only, and functional opration of th dvic at ths or any othr conditions outsid of thos listd in th oprational sctions of this spcification is not implid. xposur to any absolut maximum rating for xtndd priods may affct dvic prformanc and rliability. () This paramtr is tstd initially and aftr a dsign or procss chang that affcts th paramtr. () atch-up protction is providd for strsss up to 00m on addrss and data pins from -V to V CC V () I W = sourc or sink () Ths paramtrs ar priodically sampld and ar not 00% tstd. 00 Catalyst Smiconductor, Inc. oc. No. M-009 Rv. T

4 CT ogic Inputs Symbol Paramtr Conditions Min Typ Max Units I IH Input akag Currnt V IN = V CC 0 µ I I Input akag Currnt V IN = 0V -0 µ V IH TT High vl Input Voltag V CC V.V V CC.V TT ow vl Input Voltag 0 0. V V I V IH CMOS High vl Input Voltag V CC x 0. V CC 0. V.V V CC V CMOS ow vl Input Voltag -0. V CC x 0. V V I Potntiomtr Charactristics Symbol Paramtr Conditions Min Typ Max Units R POT Potntiomtr Rsistanc -0 vic -0 vic 0-0 vic 0-00 vic 00 Pot. Rsistanc Tolranc ±0 % V RH Voltag on R H pin 0 V CC V V R Voltag on R pin 0 V CC V Rsolution % IN Intgral inarity rror I W µ 0. SB N iffrntial inarity rror I W µ SB R WI Wipr Rsistanc V CC = V, I W = m 00 Ω V CC =.V, I W = m 000 Ω I W Wipr Currnt () -.. m TC RPOT TC of Pot Rsistanc 00 ppm/ºc TC RTIO Ratiomtric TC 0 ppm/ºc V N Nois 00kHz / khz / nv/ Hz C H /C /C W Potntiomtr Capacitancs // pf fc Frquncy Rspons Passiv ttnuator, 0kΩ. MHz Not: () This paramtr is not 00% tstd. kω oc. No. M-009 Rv. T 00 Catalyst Smiconductor, Inc.

5 CT C CONITIONS OF TST V CC Rang Input Puls vls Input Ris and Fall Tims Input Rfrnc vls.v V CC V 0.V CC to 0.V CC 0ns 0.V CC C OPRTING CHRCTRISTICS V CC =.V to.0v, V H = V CC, V = 0V, unlss othrwis spcifid Symbol Paramtr Min Typ () Max Units t CI CS to INC Stup 00 ns t I U/ to INC Stup 0 ns t I U/ to INC Hold 00 ns t I INC OW Priod 0 ns t IH INC HIGH Priod 0 ns t IC INC Inactiv to CS Inactiv µs t CPH CS slct Tim (NO STOR) 00 ns t CPH CS slct Tim (STOR) 0 ms t IW INC to V OUT Chang µs t CYC INC Cycl Tim µs () t R, t F INC Input Ris and Fall Tim 00 µs () t PU Powr-up to Wipr Stabl ms t WR Stor Cycl 0 ms.c. TIMING CS t (stor) CYC t IH t IC t CPH INC t CI ti 90% 90% 0% U/ t I t I t F t R t IW MI () R W Nots: () Typical valus ar for T = ºC and nominal supply voltag. () This paramtr is priodically sampld and not 00% tstd. () MI in th.c. Timing diagram rfrs to th minimum incrmntal chang in th W output du to a chang in th wipr position. 00 Catalyst Smiconductor, Inc. oc. No. M-009 Rv. T

6 CT PPICTIONS INFORMTION Potntiomtr Configuration (a) rsistiv dividr (b) variabl rsistanc (c) two-port pplications V (-) V CT/ V () R R R R 9 R 0 R R V = = = ¼ M0 R = R = R = kω R POT = 0kΩ V O.V V R R B C R R pr POT 0.0µF 0.00µF (-p)r POT V 0.0µF Programmabl Instrumntation mplifir Programmabl Sq. Wav Oscillator () IC ¼ HC V RF = V OSC V 00mV 0kΩ ICIB CS 0kΩ 0.0µF CT/ IC V CORR 99kΩ 99kΩ V ICI V OUT = V ± mv -V Snsor 99kΩ 99kΩ V SHIFT = 00mV V SNSOR = V ± 0mV Snsor uto Rfrncing Circuit oc. No. M-009 Rv. T 00 Catalyst Smiconductor, Inc.

7 CT 00kΩ V OUT V O (RG) V CT/ V IN (UNRG) SHUTOWN S V µf CT/ 9 GN.V FB R kω R 0Ω R 0kΩ 0.µF.µF I S 0Ω pr (-p)r 0Ω MΩ V V 0k T09 V O.V Programmabl Voltag Rgulator Programmabl I to V Convrtor V IC 9 V R CO R V V S.V 0 V S.V I IC IC HC OSC 0kΩ 0.µF IC CT/ V 0kΩ CHI V U R V V O 0 V O.V V S µf V C 0.00µF R 0kΩ CT/ C 0.00µF R 0kΩ R 00kΩ V V O.V utomatic Gain Control Programmabl Bandpass Filtr V V CT/ R 00kΩ Srial Bus.V V S R 00kΩ R 00kΩ V R.kΩ I S R 00kΩ.V = = MC0 Programmabl Currnt Sourc/Sink 00 Catalyst Smiconductor, Inc. oc. No. M-009 Rv. T

8 CT PCKG OUTINS PIP - (00MI) () c B b b SYMBO MIN NOM MX b b.. c B..9. BSC 9.. For currnt Tap and Rl information, download th PF fil from: Nots: () ll dimnsions ar in millimtrs. () Complis with JC Standard MS00. () imnsioning and tolrancing pr NSI Y.M-9 oc. No. M-009 Rv. T 00 Catalyst Smiconductor, Inc.

9 CT SOIC - NRROW BOY (0MI) (V) h x C Ө b SYMBO MIN NOM MX b C BSC h Ө 0 For currnt Tap and Rl information, download th PF fil from: Nots: () ll dimnsions ar in millimtrs. ngls in dgrs. () Complis with JC Spcification MS Catalyst Smiconductor, Inc. 9 oc. No. M-009 Rv. T

10 CT - TSSOP (Y) S TI c / GG PN PIN # INT. θ STING PN S TI 0. b SYMBO b c θ MIN NOM BSC 0.0 MX For currnt Tap and Rl information, download th PF fil from: Nots: () ll dimnsions ar in millimtrs. () Complis with JC Standard MO- oc. No. M-009 Rv. T 0 00 Catalyst Smiconductor, Inc.

11 CT - MSOP (Z) b c GUG PN θ SYMBO MIN NOM MX b c BSC Ө 0º º For currnt Tap and Rl information, download th PF fil from: Nots: () ll dimnsions ar in millimtrs. ngls in dgrs. () Complis with JC Spcification MS-. () Stand off hight/coplanarity ar considrd as spcial charactristics. 00 Catalyst Smiconductor, Inc. oc. No. M-009 Rv. T

12 CT XMP OF ORRING INFORMTION Prfix vic # Suffix CT V I -0 G () T Optional Company I Product Numbr Packag : PIP V: SOIC Y: TSSOP Z: MSOP Tmpratur Rang I = Industrial (-0ºC to ºC) Rsistanc -0: kω -0: 0 kω -0: 0 kω -00: 00 kω Tap & Rl T: Tap & Rl : 000/Rl ad Finish Blank: Matt-Tin G: NiPdu Nots: () ll packags ar RoHS-compliant (ad-fr, Halogn-fr). () Th standard lad finish is NiPdu. () This dvic usd in th abov xampl is a CTVI-0-GT (SOIC, Industrial Tmpratur, 0kΩ, NiPdu, Tap & Rl). () For Matt-Tin finish, contact factory. ORRING PRT NUMBR CTI-0-G CTI-0-G CTI-0-G CTI-00-G CTVI-0-G CTVI-0-G CTVI-0-G CTVI-00-G CTYI-0-G CTYI-0-G CTYI-0-G CTYI-00-G CTZI-0-G CTZI-0-G CTZI-0-G CTZI-00-G oc. No. M-009 Rv. T 00 Catalyst Smiconductor, Inc.

13 RVISION HISTORY at Rv. Rason 0/09/00 M Rvisd Faturs Rvisd C lctrical Charactristics 0/0/00 N Updatd Potntiomtr Paramtrs 0/9/00 O Changd Grn Packag marking for SOIC from W to V 0/0/00 P dd kw vrsion to data sht 0/0/00 Q liminatd data sht dsignation Updatd Tap and Rl spcs in Ordring Information 0//00 R Updatd Potntiomtr Paramtrs 0//00 S Updatd xampl of Ordring Information 0/0/00 T ddd Packag Outlin ddd M- in front of ocumnt No. Copyrights, Tradmarks and Patnts Tradmarks and rgistrd tradmarks of Catalyst Smiconductor includ ach of th following: Byond Mmory,, Zim,, MiniPot and Quad-Mod Catalyst Smiconductor has bn issud U.S. and forign patnts and has patnt applications pnding that protct its products. CTYST SMICONUCTOR MKS NO WRRNTY, RPRSNTTION OR GURNT, XPRSS OR IMPI, RGRING TH SUITBIITY OF ITS PROUCTS FOR NY PRTICUR PURPOS, NOR THT TH US OF ITS PROUCTS WI NOT INFRING ITS INTCTU PROPRTY RIGHTS OR TH RIGHTS OF THIR PRTIS WITH RSPCT TO NY PRTICUR US OR PPICTION N SPCIFICY ISCIMS NY N IBIITY RISING OUT OF NY SUCH US OR PPICTION, INCUING BUT NOT IMIT TO, CONSQUNTI OR INCINT MGS. Catalyst Smiconductor products ar not dsignd, intndd, or authorizd for us as componnts in systms intndd for surgical implant into th body, or othr applications intndd to support or sustain lif, or for any othr application in which th failur of th Catalyst Smiconductor product could crat a situation whr prsonal injury or dath may occur. Catalyst Smiconductor rsrvs th right to mak changs to or discontinu any product or srvic dscribd hrin without notic. Products with data shts labld "dvanc Information" or "Prliminary" and othr products dscribd hrin may not b in production or offrd for sal. Catalyst Smiconductor adviss customrs to obtain th currnt vrsion of th rlvant product information bfor placing ordrs. Circuit diagrams illustrat typical smiconductor applications and may not b complt. Catalyst Smiconductor, Inc. Corporat Hadquartrs 9 Stndr Way Santa Clara, C 90 Phon: ocumnt No: M-009 Fax: Rvision: T Issu dat: 0/0/0