LeCroy_Waverunner_2_LT_Quick_Reference 电路图.pdf

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1、Digital Oscilloscopes QUICK REFERENCE GUIDE RadioFans.CN 收音机爱 好者资料库 Wave runner-2 Qu i c k s t a rt to Signal Vi ew i n g An a l og Pe r s i s te n ce Press AN A LO GPE R S I S Tto access the power of An a l og Pe r s i s te n ce. The three-dimensional view shows va ri ations in a wave fo rm as i nt

2、e n s i ty or co l o r - g raded va ri at i o n s. Press DI S P LAYto custo m i ze the display. Press ZO O Mfor a close-up view of signal details.Use the zoo m co nt rols to magnify and inspe ct the signal,the soft keys to change the zoom view,l ock the zoom tra ces with multi-zoo m , and to auto m

3、at i cally scan the wave fo rm . Qu i c kly Di s p l ay Si g n a l s 1 . Co n n e ct your signal. When using a pro be,Pro Bu s a u to m at i cally sets the ve rt i cal scale factor and HFP pro bes a u to m at i cally light-up with the tra ce co l o r. 2 . Press AU TOSE T U Pand view. 3 . Press “ Un

4、d o”to reve rt back to a previous setting. Adjust the TI M E/ DI V, and SMART Me m o ry a u to m at i cally assure s the maximum re s o l u- tion for each time- base setting. Press a CH A N N E L b u t to n ,and use the co nt rol knobs to s e l e ct and adjust that c h a n n e ls Vo l t s / Di v and

5、 offset settings. Press tw i ce to tog g l e the channel be twe e n On and Of f. Se l e cts a pre- or po s t - t rigger delay. Use to v i ew the signal eve nt s p rior to the tri g g e r po i nt. Presets the tri g g e r d e l ay to ze ro. Press SE T U Pa n d TI M E BA S Eto set up the s co pes timeb

6、ase and acquisition sys te m . Quick Zoo m Press a CH A N N E L b u t ton to view the menu. RadioFans.CN 收音机爱 好者资料库 Wave p i l o t T M for Quick Me a s u re m e nts and An a l ysis with Insight Press WAV E PI LOTand CU R S O R Sfor access to a va ri e ty of m e a s u re m e nt cursors.Read the measu

7、re m e nt results on the s co pe display. Me a s u re m e nts Press WAV E PI LOTand ME A S U R Efor a quick view of up to 26 standard p a ra m e te r s,to set up a custom para m e te r,or a pass/fail te s t. Se l e ct para m e ter measure m e nts with statistics for multiple s we e p s. 1 .Se l e ct

8、 DA S H B OA R Dfor an exte n s i ve para m e ter set, or select standard Time or Voltage measure m e nt s. 2 .The DA S H B OA R Dv i ew is co ntext sensitive so when you v i ew a signal,h i s tog ra m ,or Tra c k Vi ew the measure m e nts a re re l eva nt. 3 .CU S TO Mt u rns para m e ter statistic

9、s On or Off and allows you to define your own set of measure m e nt s. Pa ra m e ter Me a s u re m e nt s Wavepilot provides a simple menu system that makes it easy to quickly explore the signal with powerful tools that help identify signal problems,characterize them,and track them to the source. Pr

10、ess WAV E PI LOTand ME A S U R Eto select auto m atic para m e ter meas- u re m e nts with statistics for multiple acquisitions. 1 .Se l e ct St a n d a rd Time or Voltage measure m e nt s. Tu rn para m e ter statistics On or Of f. 2 .Se l e ct CU S TO Mto establish your own set of m e a s u re m e

11、nt s. 3 .Setup pass/fail testing on para m e te r s. St at i s t i cal Me a s u re m e nt s RadioFans.CN 收音机爱 好者资料库 Me a s u re and An a l y ze Wave fo rm s For math proce s s i n g,Press button A,B,C ,or D to set up a zoo m t ra ce. 1 .Press SE T U P 2 .Se l e ct US EMAT Hand choose a funct i o n .

12、 Math and analysis can be pe rfo rmed on any tra ce. Vi ew the result for tra ce A,B,C ,or D. Press AN A LO GPE R S I S Tand select HI S TO RYto maximize the upd ate rate and to display a signal in An a l og Pe r s i s te n ce and in s e q u e n ce mod e.Trigger time stamps for up to 4,000 acquisiti

13、ons a re displaye d.For further analysis of an acquisition segment, H i s tog ram the full Histo ry,then use PLAYand REV E R S Eto scan it in s e q u e n ce. Standard Measurements a m p lAm p l i t u d ea re aI nte g ral of wave fo rm dat a b a s eLower of two most probable states cyc l e scyc l e s

14、Nu m ber of cycles of a pe ri odic wave fo rm c m e a nCyclic mean:The ave rage of wave fo rm dat ac rm sCyclic root mean squar d e l ayTime from trigger to tra n s i t i o n d l yTime be tween 50% level of two source s d u tyDu ty cyc l e :Width as pe rce ntage of pe ri odf a l lFall time from 90%

15、to 10% f 8 0 - 2 0 %Fall time from 80% to 20%maximum The highest po i nt in a wave fo rm f re qFre q u e n cyminimum The lowest po i nt in a wave fo rm m e a nThe ave rage of data for time-domain wave fo rmove r +Ove r s h oot po s i t i ve ove r -Ove r s h oot negat i vep kp kPe a k - to - pe a k p

16、e ri odPe ri od of a cyclic signalr 2 0 - 8 0 %Rise time from 20% to 80% p h a s ePhase diffe re n ce be tween signal analyzed and ri s eRise time from 10% to 90% signal used as a re fe re n ces d evSt a n d a rd dev i ation of data be tween the cursors. rm sRoot mean square of data be tween the cur

17、sorsw i d t hWidth of cyclic signal:All wave fo rm pulses to pHigher of two most probable state sa re ave raged then displaye d x a m nHo ri zo ntal position of the smallest data va l u e x a m xThe hori zo ntal position of the largest data va l u e Waverunner-2 Options:WAVA - WaveAnalyzer and EMM -

18、 Extended Math and Measurement c s d ev Cyclic standard dev i at i o nc2d clock to data (setup and hold time) cmedian Cyclic median:The ave rage of base and top tlv The transition time be tween selected levels on values over an inte g ral number of cyc l e sa single tra ce or be tween two tra ce s f

19、 i r s tI n d i cates value of hori zo ntal axis at left cursorm e d i a nThe ave rage of base and top va l u e s l a s tTime from trigger to last (ri g htmost) cursorpo i nts Nu m ber of po i nts be tween the cursors r l eve lRise time be tween selected voltage leve l sf l evel Fall time be tween s

20、elected voltage leve l s dur Time be tween triggers in segment / h i s to ry mode t l eve lTime from trigger (t=0) to crossing at a leve l Wave fo rm Math H i s to ry Standard Math Tools (Signal Processing) Arithmetic Sum (add),Di f fe re n ce (subtra ct ) ,Prod u ct (multiply),Ratio (divide) Ave ra

21、ging Summed ave rage of up to 4 000 swe e p s ;Co ntinuous ave rage from 1:1 to 1:1024 we i g ht i n g Ext re m aEnve l o pe,f l oo r,and roo f F F TFast Fo u rier Tra n s fo rm to 50,000 po i nt s : FFT Ty pe sPower Spe ct ru m , Ph a s e,Ma g n i t u d e.Wi n d ows :Fl at To p,Re ct a n g u l a r,

22、Bl a c kman Ha rri s,Von Ha n n ,Ha m m i n g Other Fu n ct i o n sI d e nt i ty,Ne g ation (Inve rt ) ,Sine x/x Resample To deskew as well as resample signals Re s ca l eAssign phys i cal units and re s ca l e E R E SEn h a n ced Resolution for up to 11 bits of ve rt i cal re s o l u t i o n Waveru

23、nner-2 Options: WAVA_WaveAnalyzer All standard mat h ,m e a s u re m e nt,and signal processing tools plus: Extended Ave raging Su m m e d.Ave rage of up to one million wave fo rm s. Co ntinuous ave rage from 1:1 to 1:1024 we i g ht i n g Extended FFTFast Fo u rier Tra n s fo rm to one million po i

24、nt s FFT Ave ra g e,Power Ave ra g i n g,Re a l ,Power De n s i ty,Real + Imaginary H i s tog ra m s *Gra p h i cal analysis with Histog rams and Histog ram An a l ysis Pa ra m e te r s WAVA :2 billion eve nt s E M M :200 eve nt s H i s tog ram Pa ra m e te r s av gave rage of data values in histog

25、ra m f w h mfull width (of largest peak) at half the maximum bin f w x xfull width (of largest peak) at xx% the maximum bin h a m p lh i s tog ram amplitude be tween two largest pe a k s h b a s eh i s tog ram base or leftmost of two largest pe a k s h i g hhighest data value in histog ra m h m e d

26、i a nmedian data value of histog ra m h rm srms value of data in histog ra m hto ph i s tog ram top or ri g htmost of two largest pe a k s l owl owest data value in histog ra m m a x ppo p u l ation of most po p u l ated bin in histog ra m m od ed ata value of most po p u l ated bin in histog ra m p

27、ct ld ata value in histog ram for which specified x% of po p u l ation is smaller p k sn u m ber of peaks in histog ra m ra n g ed i f fe re n ce be tween highest and lowest data va l u e s s i g m as t a n d a rd dev i ation of the data values in histog ra m to t ptotal po p u l ation in histog ra

28、m x a p kx-axis position of specified largest pe a k Trending* Plot a para m e ter versus time or versus another para m e te r Other funct i o n s *Ab s o l u te Va l u e,Re c i p rocal (1/x),Sq u a re,Sq u a re Roo t,De ri vat i ve,I nte g ra l ,Exp (base e),Exp (base 10),Log (base e), Log (base 10

29、) DFP_Digital Filter Package Linear-phase Fi n i te Impulse Re s ponse (FIR) filte r s : Low Pa s s,High Pa s s,Band Pa s s,Band Sto p,Raised Co s i n e,Raised Root Co s i n e,Ga u s s i a n Up to 4 filters can be ca s ca d e d. Design a custom filter then download the filter coe f f i c i e nts int

30、o the Wave Pro sco pe with DSOFi l ter utility. JTA_Jitter and Timing Analysis Ji t te r Track for a time co rre l ated gra p h i cal view of cycle to cycle para m e ter va ri at i o n . PMA1 Power Measure Analysis Power Me a s u re An a l ysis provides para m e t ric and gra p h i cal analysis of p

31、ower dev i ce mod u l ation and line power analys i s. * Also included with EMM Wave ru n n e r - 2 Tri g g e ri n g Level indicato r s Ho ri zo ntal delay (tri g g e r ) position indicator I cons indicate the ty pe and c h a ra cte ristics of the tri g g e r in use. Setup signal conditions Se l e c

32、t pulse ty pe Se l e ct co u p l i n g Se l e ct trigger source Se l e ct trigger ty pe Na m eDe s c ri p t i o n Gl i tch Triggers at end of po s i t i ve or negat i ve pulses down to 2 ns. Trigger when pulse is or or within a range () or outside a ra n g e. I nte rva lTriggers on inte rvals be twe

33、en po s i t i ve or negat i ve edges. Trigger when inte rval is or or within a range () or outside a ra n g e. Qu a l i f i e dQualify by edge or state.Triggers on a selected input after a defined state or edge has oc c u rred on another channel (or a pat te rn is pre s e nt or absent ) .Set a time

34、condition that the second must occur within to tri g g e r,or a wait time or number eve nts be fo re tri g g e ri n g. Qual Fi r s tA single pulse qualifies a sequence of tri g g e r s. Dro po u tTriggers if the input signal drops out for longer than selected time. Pat te rn (log i c )Trigger on the

35、 log i cal co m b i n ation of up to 5 inputs.When used in co m b i n ation with Qualified it is possible to trigger on a selected input when the pat te rn is pre s e nt or absent. TVTriggers on line (up to 1 500) in odd or even fields for PA L ,N TS C ,or non-standard video. Waverunner-2 Option:ATP

36、 Advanced Trigger Package Ru ntDefine ru nt conditions including the range of pulse leve l s,w i d t h s,and select the edge. Sl ew RateDefine slew conditions including dV,d T,and slope. Waverunner-2 SMARTTriggers Na m eDe s c ri p t i o n Ed g eSe l e ct po s i t i ve or negat i ve slope and hold-o

37、ff by time or eve nt s. Wi n d owSet a window around the trigger leve l .Trigger whenever the signal crosses outside the w i n d ow in either dire ct i o n . Waverunner-2 Basic Triggers Ac cesses the trigger setup m e n u. Arms the tri g g e r. The sco pe triggers once when the trigger conditions ar

38、e met and then displays the signal. Triggers even if a signal is not p re s e nt. Triggers whenever the tri g g e r conditions are met. Sets the trigger leve l . Preve nts the sco pe fro m t ri g g e ri n g. Flashes when a trigger oc c u r s. The text indicates stat u s. Press WAV E PI LOTand GRA PH

39、for quick access to powe rful pro b l e m solving fe at u re s. Qu i c kly identify the problem with spe c i a l v i ews :H i s tog ra m s,F F T,Tra c k Vi ew,and Ji t te r Tra c k . 1 .Se l e ct the ty pe of view and the para m e ter or funct i o n . 2 .Setup the view. 3 .Se l e ct Graph and Tra c

40、k Vi ew or Ji t te r Track for a time- co rre l ated view of measure m e nts and you can visually t rack down signal errors and anomalies. H i s tog rams are fast and simple to set up.Press WAV E PI LOTa n d GRA PH,dial in the measure para m e te r,s e l e ct the Histog ram Se t u p co n d i t i o n

41、 s,then press AU TO S E T U Ph i s tog ra m . Graph Pa ra m e ter Di s t ributions Get measure m e nts that make sense! Press WAV E PI LOTand GRA PH, then ME A S U R E, for a quick,co ntext - s e n s i t i ve para m e ter assess- m e nt of the chara cte ristics of Tra c k Vi ews. Graph and Me a s u

42、re m e nts Graph Vi ews Ro t a ry co nt ro l s adjust the hori- zo ntal po s i t i o n and magnificat i o n of the selecte d zoom tra ce. Se l e ct a zoom tra ce fo r setup of signal proce s s- i n g.The analysis co nt ro l s a f fe ct the selected tra ce ( A , B, C , D ) . Press tw i ce to toggle b

43、e tween On and Of f. Quick Zoom a u to m at i cally displays 10X magnified tra ce s of all signals on multi- g ri d s Provides dire ct access to m at h e m at i cal signal p roce s s i n g. An a l ysis Co nt rols Ro t a ry co nt rols adjust the ve rt i cal po s i t i o n and magnification of the sel

44、ected zoo m t ra ce. GPIB Po rt Clears data acquired in pe r s i s te n ce displays, s weep ave ra g i n g,a n d m e a s u re m e nt stat i s t i c s. Pri nt to the hard co py d ev i ce set up in the utili- ties menu (hard co py s e l e ct i o n ) . Setup display c h a ra cte ristics and f u n ct i

45、o n s,including co l o r s c h e m e s,and pe r s i s te n ce co n d i t i o n s.Toggling AN A LO G PE R S I S T E N C Es h ows a seco n d m e n u. Wave ru n n e r - 2 Ge n e ral Co nt rols Setup hard co py pri nt i n g, Cal Out signal,G P I B, Ne two rk ,and I/O i nte rf a ce s,as well as other fun

46、ct i o n s. Sto re and re call wave fo rm s to / f rom inte rnal sco pe m e m o ry,f l o p py disk, or PC ca rd s. Simple menu sys te m to allow quick signal m e a s u re m e nt and analys i s with insight. Sto re and re call the settings of fro nt panel co nt rols and sco pe setup co n d i t i o n

47、s. Re t u rn to the prev i o u s menu leve l .It clears the menu when a top leve l menu is displaye d. Check the status of the s co pes sys te m s,s e t u p co n d i t i o n s,add softwa re o p t i o n s,and fre e - u p m e m o ry. Use the ro t a ry co nt rols fo r menu select i o n ,c u r s o r m o

48、ve m e nt,and memory length setting. R S - 2 3 2 - C Ce nt ronics co m p at i b l e Pri nter Po rtVGA Mo n i tor Po rt PC Ca rd Slot (optional) Su p po rts SRA M ,ATA Fl a s h ,a n d Ha rd Dri ve PC Ca rd s. 50 BNC Input for a 10 MHz Re fe re n ce Cl ock AC Line Input: Au to m at i ca l l y senses a

49、nd co n f i g u res line voltage and f re q u e n cy. 10 Base T Et h e rnet Po rt (optional) Sales and Se rv i ce Th roughout the Wo rl d Co rpo rate He a d q u a rte r s 700 Chestnut Ridge Ro a d Chestnut Ri d g e,NY 10977 U S A ht t p : / / w w w. l e c r oy. co m Le Croy Sales Of f i ce s : Asia:Hong Kong Phone (852) 2834 5630 Fax (852) 2834 9893 Austria:Markersdorf Phone (43) 2749 30050 Fax (43) 2749 30051 Benelux:The Netherlands Phone (31) 40 211 6998 Fax (31) 40 211 6999 France:Les Ulis Phone (33) 1 69 18 83 20 Fax (33) 1 69 07 40 42 Germany:Heidelberg Ph