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Tektronix TDS1000- User's Manual

1. 0200000 56 Optimizing the Acquisition llle 57 Measuring Propagation Delay 0 020 ee eee eee 58 ii TDS1000 2000 Series Digital Oscilloscope User Manual Table of Contents Triggering on a Specific Pulse Width sus 60 Triggering on a Video Signal 0 e ee ee eee 62 Triggering on Video Fields i vses ds Rv RES RES 63 Triggering on Video Lines esee mene eee Sat 64 Using the Window Function to See Waveform Details 66 Analyzing a Differential Communication Signal 68 Viewing Impedance Changes in a Network 70 RelteretiCe eii voces Fer va de RI BEC ERR cede bass 73 ACIU E Lord UR DIEM ooa US ALD iR eta Ue Cet 74 PNULOSEL S ov wicks ene ee Pk tenes Cane A SER gy e op SPAM S 79 Sine Wave M CE 81 Square Wave or Pulse io see vu deae ort wa Adega os 82 VIDEO SIONAL iii sce eal eal e dae RISQUE MIL Pe I ALS 83 CUISORS Lege eaine soak He teresa dE ex ere S IDE Ex 84 Default Setup tirrr evo teen FEES V SE ERES MEE 85 Display 24 ce ecow Gud e Wwe Brow B NE Re OS BAS PARIS ORES 86 FEID re eg en PPP ORs 89 Horizontal 15x25 peed PEER ES e mace PEDE Ee on ERS 90 Mathis a een eI MP eco piece onsen Chey wee PRICES 93 WieASUTe eii reni eh ond Seale catego ns Seale cea keene ees 94 inito tty sa Abia tore Genes Awe E oh tse Asean Ioan by ob tay Ase aan 96 Probe Check yo anes Y kae Rien aa EE be rA s 96 Dave Recall 12 9 eot Ac aibig qa Ue det tete 97
2. ge GO DO joo O Oooo 00 joo OQ000 e00000 0 ihre S ET 2 channel ol o O0 O0 O0 00 00 Q 2e m O Oo oJ O O00 g O 0O00 oO Q00 OQ00o00 4 channel ER 170 Optional Accessories Cont TDS200 TDS1000 and TDS2000 Series Digital Oscilloscope Programmer Manual The programmer manual 071 1075 XX English provides command and syntax information TDS1000 and TDS2000 Series Digital Storage Oscilloscope Service Manual The service manual 071 1076 XX English provides module level repair information TDS1000 and TDS2000 Series Digital Storage Oscilloscope User Manuals The User manual is available in these languages English 071 1064 XX French 071 1065 XX Italian 071 1066 XX German 071 1067 XX Spanish 071 1068 XX Japanese 071 1069 XX Portuguese 071 1070 XX Simplified Chinese 071 1071 XX Traditional Chinese 071 1072 XX Korean 071 1073 XX Russian 071 1074 XX These manuals contain a language overlay for the front panel controls P2200 Probe Instructions Manual The P2200 probe manual 071 1102 XX English provides information on the probe and probe accessories TDS1000 2000 Series Digital Oscilloscope User Manual Appendix B Accessories Optional Accessories Cont International Power Cords In addition to the power cord shipped with your instrument you can obtain the following cords Option AO North American
3. 132 Layout Portrait Landscape Printer output orientation Format Thinkjet Deskjet Laser Jet Type of device connected to Bubble Jet Epson BMP PCX the communications port TIFF RLE EPSIMAGE DPU411 DPU412 DPU3445 Port Centronics RS 232 GPIB Communications port used to connect the oscilloscope to a printer or computer Ink Saver On prints the screen data on a white background Abort Stops sending screen data to Printing theprinter Only for TDS2000 series oscilloscopes NOTE If you use the RS 232 or GPIB port you also need to set up the parameters for the port appropriately for your printer TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module Testing the Printer Port To test the printer port follow these steps 1 If you have already connected the oscilloscope to a printer go to step 4 2 Power off the oscilloscope and the printer 3 Connect the oscilloscope to the printer using the appropriate cable 4 Power on the oscilloscope and the printer 5 If you have not done so already define an appropriate printer setup Refer to page 131 6 Push the PRINT button The printer should begin printing a copy of the oscilloscope screen within twenty seconds depending on the selected printer Printing Oscilloscope Screen Data To print the screen data push the PRINT button The oscilloscope takes a few seconds to capture the screen data The sett
4. Available only on a 4 channel oscilloscope Key Points VOLTS DIV Use the VOLTS DIV control to scale the waveforms of the channels The math add or subtract waveform is the visual sum or difference of the channel waveforms TDS1000 2000 Series Digital Oscilloscope User Manual 93 Reference Measure Push the MEASURE button to access automatic measurements There are eleven types of measurements available You can display up to five at a time Push the top option button to display the Measure 1 Menu You can choose the channel on which to take a measurement in the Source option You can choose the type of measurement to take in the Type option Push the Back option button to return to the MEASURE Menu and display the selected measurements Key Points Taking Measurements You can display up to five automatic measure ments at a time for a single waveform or divided among the waveforms The waveform channel must be on displayed to make a measurement Automated measurements cannot be taken on reference or math waveforms or while using XY or scan mode The measurements update about two times per second Measurement type Definition Freq Calculates the frequency of the waveform by measuring the first cycle Period Calculates the time of the first cycle 94 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Measurement type Mean Pk Pk Cyc RMS Min Max Rise Time Fall Time Pos Wid
5. Application Examples NOTE Be sure to first compensate both probes Differences in probe compensation appear as errors in the differential signal To activate the differential signals connected to channel 1 and channel 2 follow these steps 1 NIA Un Aa W Push the CH 1 MENU button and set the Probe option attenua tion to 10X Push the CH 2 MENU button and set the Probe option attenua tion to 10X Set the switches to 10X on the P2200 probes Push the AUTOSET button Push the MATH MENU button to see the Math Menu Push the Operation option button and select Push the CH1 CH2 option button to display a new waveform that is the difference between the displayed waveforms You can adjust the vertical scale and position of the Math waveform To do so follow these steps a Remove the channel 1 and channel 2 waveforms from the display b Turn the CH 1 and CH 2 VOLTS DIV and VERTICAL POSITION knobs to adjust the vertical scale and position TDS1000 2000 Series Digital Oscilloscope User Manual 69 Application Examples For a more stable display push the SINGLE SEQ button to control the acquisition of the waveform Each time you push the SINGLE SEQ button the oscilloscope acquires a snapshot of the digital data stream You can use the cursors or automatic measurements to analyze the waveform or you can store the waveform to analyze later NOTE Vertical sensitivity should match o
6. None must be polled for and event code status TDS1000 2000 Series Digital Oscilloscope User Manual 179 Appendix E GPIB and RS 232 Interfaces 180 GPIB and RS 232 interface comparison Cont Operating attribute GPIB RS 232 Message termination Hardware EOL Software CR LF CRLF Receive software LF or both LFCR Message termination Hardware EOL software Software CR LF CRLF Transmit LFCR Timing Asynchronous Asynchronous Transmission path length lt 4 meters between lt 15 meters max devices lt 20 meters total cabling Speed 200 kBytes sec 19 200 bits sec System environment Multiple devices lt 15 Single terminal point to point connection TDS1000 2000 Series Digital Oscilloscope User Manual Index in Value readout 44 A Abbreviating commands 150 AC coupling 112 Accessories 169 172 Acquire menu 74 ACQUIRE button 38 74 Acquire signals basic concepts 17 Acquisition live display 78 modes 74 single shot example 56 stopping 78 Acquisition mode indicators 28 Acquisition modes 17 Average 17 Peak Detect 17 Sample 17 Address Tektronix xiii Aliasing check for 21 FFT 122 time domain 20 Application examples 41 analyzing a differential commu nication signal 68 analyzing signal detail 54 automatic measurements 42 autoset using 42 averaging using 55 calculating amplifier gain 47 capturing a single shot signal 56 cursors
7. Polarity Normal Sync All Lines Standard NTSC a C 176 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix D Default Setup Default setup Cont Menu or control Default setting TRIGGER Pulse Type Pulse Source CH1 When Set Pulse Width 1 00 ms Polarity Positive Auto Coupling a C Vertical system Coupling all channels BW Limit o zh Volts Div Coarse Probe Invert POSITION 0 00 divs 0 00 V VOLTS DIV 1 00 V O e FE x a C TDS1000 2000 Series Digital Oscilloscope User Manual 177 Appendix D Default Setup 178 The DEFAULT SETUP button does not reset the following settings Language option Saved setup files Saved reference waveform files Display contrast Calibration data Printer setup RS232 setup GPIB setup TDS1000 2000 Series Digital Oscilloscope User Manual ES A e I Appendix E GPIB and RS 232 Interfaces The next table provides an in depth comparison of the GPIB and RS 232 interfaces You should select the interface that best meets your requirements GPIB and RS 232 interface comparison Operating attribute GPIB RS 232 Cable IEEE 488 Std 9 wire Data flow control Hardware 3 wire hand Flagging shake soft XON XOFF hard RTS CTS Data format 8 bit parallel 8 bit serial Interface control Operator low level con None trol message Interface messages Most IEEE 488 Std Device clear using a break signal Interrupts reported Service requests status
8. Edge default Triggers the oscilloscope on the rising or falling edge of the input signal when it crosses the trigger level threshold Video Displays NTSC or PAL SECAM standard composite video waveforms you trigger on fields or lines of video signals Refer to Video on page 104 Pulse Triggers on aberrant pulses Refer to Pulse Width Trigger on page 105 TDS1000 2000 Series Digital Oscilloscope User Manual 99 Reference Edge Trigger Use Edge triggering to trigger on the edge of the oscilloscope input signal at the trigger threshold Options Settings Comments Edge With Edge highlighted the rising or falling edge of the input signal is used for the trigger Source Select the input source as the trigger signal see page 102 Slope Rising Select to trigger on either the rising or Falling falling edge of the signal Mode Auto Select the type of triggering see page 101 Normal Coupling AC Selects the components of the trigger DC signal applied to the trigger circuitry see Noise Reject page 103 HF Reject LF Reject Available only on 4 channel oscilloscopes 100 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Trigger Frequency Readout The oscilloscope counts the rate at which trigger events occur to determine trigger frequency and displays the frequency in the lower right corner of the screen Key Points Mode Options Mode option Details Auto default Forces the oscillo
9. 02 or equivalent between the 75 ohm coaxial cable from the signal source and the oscilloscope BNC input Triggering on Video Fields Automatic To trigger on the video fields follow these steps 1 Push the AUTOSET button When Autoset is complete the oscilloscope displays the video signal with sync on All Fields 2 Push the Odd Field or Even Field option buttons from the AUTOSET Menu to sync on odd or even fields only Manual An alternative method requires more steps but may be necessary depending on the video signal To use the method follow these steps 1 Push the TRIG MENU button to see the Trigger Menu 2 Push the top option button and select Video 3 Push the Source option button and select CH1 4 Push the Sync option button and select All Fields Odd Field or Even Field Push the Standard option button and select NTSC Un 6 Turn the horizontal SEC DIV knob to see a complete field across the screen 7 Turn the vertical VOLTS DIV knob to ensure that the entire video signal is visible on the screen TDS1000 2000 Series Digital Oscilloscope User Manual 63 Application Examples Triggering on Video Lines Automatic You can also look at the video lines in the field To trigger on the video lines follow these steps 1 2 Push the AUTOSET button Push the top option button to select Line to sync on all lines The AUTOSET Menu includes All Lines and Line Number options Manual An a
10. 75 isopropyl alcohol for more efficient cleaning CAUTION To avoid damage to the surface of the instrument or probes do not use any abrasive or chemical cleaning agents TDS1000 2000 Series Digital Oscilloscope User Manual 173 Appendix C General Care and Cleaning 174 TDS1000 2000 Series Digital Oscilloscope User Manual pev A e Appendix D Default Setup This appendix describes the options buttons and controls that change settings when you push the DEFAULT SETUP button For a list of settings that do not change refer to page 178 NOTE When you push the DEFAULT SETUP button the oscilloscope displays the CH1 waveform and removes all other waveforms Default settings Menu or system Option button or knob Default setting ACQUIRE three mode options Sample Averages RUN STOP RUN CURSOR Type Source CH1 Horizontal voltage 3 2 divs Vertical time 4 divs DISPLAY Type Vectors Persist Oo o zh 5 Q Format HORIZONTAL Window Main Trig Knob Level POSITION 0 00 s SEC DIV 500 us Window Zone 50 us TDS1000 2000 Series Digital Oscilloscope User Manual 175 Appendix D Default Setup Default setup Cont Menu or control Default setting MATH Operation CH1 CH2 FFT operation Source CH1 Window Hanning FFT Zoom X1 MEASURE Source CH1 Type None TRIGGER Edge Type Edge Source CH1 Slope Rising Auto Coupling LEVEL 0 00 V TRIGGER Video Type Video Source CH1
11. Index 32 c setae ara EXE Me Sea DE DN ORDRE S V abate 181 TDS1000 2000 Series Digital Oscilloscope User Manual pee A General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified Only qualified personnel should perform service procedures To Avoid Fire or Personal Injury Use Proper Power Cord Use only the power cord specified for this product and certified for the country of use Connect and Disconnect Properly Do not connect or disconnect probes or test leads while they are connected to a voltage source Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Connect the Probe Properly The probe ground lead is at ground potential Do not connect the ground lead to an elevated voltage Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and marking on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers Do not operate this product with covers or panels removed Use Proper Fuse Use only the fuse type and rating specif
12. Option A1 European Option A2 United Kingdom Option A3 Australian Option A5 Switzerland Option AC China 120 V 60 Hz 230 V 50 Hz 230 V 50 Hz 240 V 50 Hz 230 V 50 Hz 220 V 50 Hz 161 0066 00 161 0066 09 161 0066 10 161 0066 11 161 0154 00 161 0304 00 Soft Case The soft case AC220 protects the instrument from damage and provides space for probes power cord and manuals Transit Case The transit case HCTDS32 provides shock vibration impact and moisture protection for the instrument when you transport it from one place to another The required soft case fits inside the transit case TDS1000 2000 Series Digital Oscilloscope User Manual 171 Appendix B Accessories 172 TDS1000 2000 Series Digital Oscilloscope User Manual peemy Ac Appendix C General Care and Cleaning General Care Do not store or leave the instrument where the LCD display will be exposed to direct sunlight for long periods of time CAUTION To avoid damage to the instrument or probes do not expose them to sprays liquids or solvents Cleaning Inspect the instrument and probes as often as operating conditions require To clean the exterior surface perform the following steps 1 Remove loose dust on the outside of the instrument and probes with a lint free cloth Use care to avoid scratching the clear plastic display filter 2 Use a soft cloth dampened with water to clean the instrument Use an aqueous solution of
13. SINGLE SEO button again you can see more detail about the relay contact opening You can now see that the contact bounces several times as it opens TDS1000 2000 Series Digital Oscilloscope User Manual 57 Application Examples Measuring Propagation Delay You suspect that the memory timing in a microprocessor circuit is marginal Set up the oscilloscope to measure the propagation delay between the chip select signal and the data output of the memory device m O 2 CH1 CH2 Type Source Delta pede 13 00ns Se b3hHz Cursor 1 46 00ns Data Cursor 2 amp 7 00ns 58 TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples To set up to measure propagation delay follow these steps 1 If the channels are not displayed push the CH 1 MENU and then CH 2 MENU buttons 2 Push the AUTOSET button to trigger a stable display Ge Adjust the horizontal and vertical controls to optimize the display Push the CURSOR button to see the Cursor Menu Push the Type option button and select Time Push the Source option button and select CH1 NH Un A Turn the CURSOR 1 knob to place the cursor on the active edge of the chip select signal 8 Turn the C
14. Safety requirements for electrical equipment for measurement control and laboratory use EN61010 2 031 1994 Particular requirements for hand held probe assemblies for electrical measurement and test Overvoltage Category Examples of Products in this Category Category CAT III Distribution level mains fixed installation CAT Il Local level mains appliances portable equipment CAT I Signal levels in special equipment or parts of equipment telecommunications electronics Pollution Degree 2 Do not operate in environments where conductive pollutants may be present Safety UL3111 1 First Edition amp UL3111 2 031 First Edition CSA C22 2 No 1010 1 92 amp CAN CSA C22 2 No 1010 2 031 94 IEC61010 1 A2 IEC61010 2 031 Pollution Degree 2 166 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications P2200 Probe Specifications Cont Environmental characteristics Temperature Operating 32 F 122 F 0 C to 50 C Nonoperating 40 F 159 8 F 40 C to 71 C Cooling Method Convection Humidity 104 F 40 C or below lt 90 relative humidity 105 F 122 F 41 C to 50 C 60 relative humidity Altitude Operating 10 000 ft 3 000 m Nonoperating 40 000 ft 15 000 m TDS1000 2000 Series Digital Oscilloscope User Manual 167 Appendix A Specifications 168 TDS1000 2000 Series Digital Oscilloscope User Manual pev Ac e Appendix B Acce
15. Series Digital Oscilloscope User Manual Application Examples Measuring Ring Amplitude You measured the ring frequency in the previous example Now you want to measure the amplitude of the ringing To measure the amplitude follow these steps 1 Push the CURSOR button to see the Cursor Menu 2 Push the Type option button and select Voltage 3 4 Turn the CURSOR 1 knob to place a cursor on the highest peak Push the Source option button and select CH1 of the ring Turn the CURSOR 2 knob to place a cursor on the lowest point of the ring You can see the following measurements in the Cursor Menu m The delta voltage peak to peak voltage of the ringing m The voltage at Cursor 1 m The voltage at Cursor 2 TDS1000 2000 Series Digital Oscilloscope User Manual 49 Application Examples 50 Measuring Pulse Width You are analyzing a pulse waveform and you want to know the width of the pulse To measure the width of a pulse using the time cursors follow these steps 1 Push the CURSOR button to see the Cursor Menu LEDs light under the VERTICAL POSITION knobs to indicate the alternative CURSOR1 and CURSOR2 functions Push the Source option button and select CH1 Push the Type option button and select Time Turn the CURSOR 1 knob to place a cursor on the rising edge of the pulse Turn the CURSOR 2 knob to place the remaining cursor on the f
16. Time Domain Aliasing Aliasing occurs when the oscilloscope does not sample the signal fast enough to construct an accurate waveform record When this happens the oscilloscope displays a waveform with a frequency lower than the actual input waveform or triggers and displays an unstable waveform Actual high frequency waveform Apparent low frequency waveform due to aliasing Sampled points The oscilloscope accurately represents signals but is limited by the probe bandwidth the oscilloscope bandwidth and the sample rate To avoid aliasing the oscilloscope must sample the signal more than twice as fast as the highest frequency component of the signal The highest frequency that the oscilloscope sampling rate can theoretically represent is the Nyquist frequency The sample rate is called the Nyquist rate and is twice the Nyquist frequency 20 TDS1000 2000 Series Digital Oscilloscope User Manual Understanding Oscilloscope Functions Oscilloscope models with 60 MHz or 100 MHz bandwidth sample at rates up to 1 GS s Models with 200 MHz bandwidth sample at rates up to 2 GS s In both cases these maximum sample rates are at least ten times the bandwidth These high sample rates help reduce the possibility of aliasing There are several ways to check for aliasing m Turn the SEC DIV knob to change the horizontal scale If the shape of the waveform changes drastically you may have aliasing m Select the Peak Detect acquisition
17. V Excursion above 300 V should be less than 100 ms duration RMS signal level including any DC component removed through AC coupling must be limited to 300 V If these values are exceeded damage to the instrument may result Refer to the Overvoltage Category description on page 164 Bandwidth reduced to 6 MHz with a 1X probe 152 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications Oscilloscope Specifications Cont Inputs Channel to Channel Common Mode Rejection typical Channel to Channel Crosstalk Vertical Digitizers VOLTS DIV Range Position Range TDS1002 and TDS1012 TDS2012 TDS2014 TDS2022 TDS2002 and TDS2024 100 1 at 60 Hz 100 1 at 60 Hz 20 1 at 30 MHz 20 1 at 50 MHz Measured on MATH Ch1 Ch2 waveform with test signal applied between signal and common of both channels and with the same VOLTS DIV and coupling settings on each channel Measured on MATH Ch3 Ch4 waveform for 4 channel models TDS1002 and TDS 1012 TDS2022 and TDS2002 TDS2012 and TDS2024 TDS2014 100 1 at 100 1 at 50 MHz 100 1 at 30 MHz 100 MHz Measured on one channel with test signal applied between signal and common of the other channel and with the same VOLTS DIV and coupling settings on each channel 8 bit resolution except when set to 2 mV div each channel sampled simultaneously 2 mV div to 5 V div at input BNC 2 mV div to 200 mV div 2 V gt 200 mV div to 5
18. V div 50 V Bandwidth reduced to 6 MHz with a 1X probe TDS1000 2000 Series Digital Oscilloscope User Manual 153 Appendix A Specifications Oscilloscope Specifications Cont Vertical Analog Bandwidth in TDS1002 and TDS1012 TDS2022 and TDS2024 Sample and Average TDS2002 TDS2012 and modes at BNC or with TDS2014 E ue 6OMHzt 100MHzi 200 MHzt P 32 F 104 F 0 C to 40 C 160 MHzt 32 F 122 F 0 C to 50 C 20 MHz when vertical scale is set to 5 mV Analog Bandwidth in TDS1002 and TDS1012 TDS2012 TDS2014 TDS2022 and Peak Detect mode TDS2002 TDS2024 UR vnd to 5 us div eomHzt 75 MHzt 20 MHz when vertical scale is set to 5 mV Selectable Analog 20 MHz Bandwidth Limit typical Lower Frequency lt 10 Hz at BNC Limit AC Coupled lt 1 Hz when using a 10X passive probe Rise Time at BNC TDS1002 and TDS1012 TDS2022 and TDS2024 typical TDS2012 and TDS2014 Peak Detect Captures 5096 or greater amplitude of pulses 212 ns wide typical Response 50 s div to 5 us div in the center 8 vertical divisions T When vertical scale is set to 5 mV Bandwidth reduced to 6 MHz with a 1X probe Theoscilloscope reverts to Sample mode when the SEC DIV horizontal scale is set from 2 5 us div to 5 ns div on 1 GS s models or from 2 5 us div to 2 5 ns div on 2 GS s models The Sample mode can still capture 10 ns glitches 154 TDS1000 2000 Series Digital Osci
19. all power on tests passed Push the DEFAULT SETUP button The default Probe option attenuation setting is 10X Set the switch to 10X on the P2200 probe and connect the probe to channel 1 on the oscilloscope To do this align the slot in the probe connector with the key on the CH 1 BNC push to connect and twist to the right to lock the probe in place Connect the probe tip and reference lead to the PROBE COMP connectors Push the AUTOSET button Within a few seconds you should see a square wave in the display of about 5 V peak to peak at 1 kHz Push the CH 1 MENU button twice to remove channel 1 push the CH 2 MENU button to display channel 2 repeat steps 2 and 3 For 4 channel models repeat for CH 3 and CH 4 TDS1000 2000 Series Digital Oscilloscope User Manual 5 Getting Started Probe Safety A guard around the probe body provides a finger barrier for protection from electric shock Finger guard WARNING To avoid electric shock when using the probe keep fingers behind the guard on the probe body To avoid electric shock while using the probe do not touch metallic portions of the probe head while it is connected to a voltage source Connect the probe to the oscilloscope and connect the ground terminal to ground before you take any measurements 6 TDS1000 2000 Series Digital Oscilloscope User Manual Getting Started Probe Check Wizard You can use the Probe Check Wizard to quickly verify that
20. button Push an option button to change its measurement m Information about the action the oscilloscope performed such as when you push the DEFAULT SETUP button Default setup recalled m Information about the waveform such as when you push the AUTOSET button Square wave or pulse detected on CH1 TDS1000 2000 Series Digital Oscilloscope User Manual 31 Operating Basics Using the Menu System The user interface of TDS1000 and TDS2000 series oscilloscopes was designed for easy access to specialized functions through the menu structure When you push a front panel button the oscilloscope displays the corresponding menu on the right side of the screen The menu shows the options that are available when you push the unlabeled option buttons directly to the right of the screen Some documentation may also refer to the option buttons as screen buttons side menu buttons bezel buttons or soft keys The oscilloscope uses four methods to display menu options m Page Submenu Selection For some menus you can use the top option button to choose two or three submenus Each time you push the top button the options change For example when you push the top button in the SAVE REC Menu the oscilloscope cycles through the Setups and Waveforms submenus m Circular List The oscilloscope sets the parameter to a different value each time you push the option button For example you can push the CH 1 MENU button and then push the
21. change the appearance of the entire display Options Settings Comments Type Vectors Vectors fills the space between adjacent Dots sample points in the display Dots displays only the sample points Persist OFF Sets the length of time each displayed 1 sec sample point remains displayed 2 sec 5 sec Infinite Contrast Darkens the display makes it easier to Increase distinguish a channel waveform from persistence Contrast Lightens the display Decrease Format YT YT format displays the vertical voltage in XY relation to time horizontal scale XY format displays a dot each time a sample is acquired on channel 1 and channel 2 Channel 1 voltage determines the X coordinate of the dot horizontal and the channel 2 voltage determines the Y coordinate vertical 86 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Depending on the type waveforms will be displayed in three different styles solid dimmed and broken 1 A solid waveform indicates a channel live waveform display The waveform remains solid when the acquisition is stopped if no controls are changed that make the display accuracy uncertain Changing the vertical and horizontal controls is allowed on stopped acquisitions TDS1000 2000 Series Digital Oscilloscope User Manual 87 Reference 2 For the TDS1000 series monochrome monitor a dimmed waveform indicates reference waveforms or waveforms with persistence a
22. clearly see the frequency components at each of the 1024 data points in the FFT spectrum NOTE The oscilloscope vertical response rolls off slowly above its bandwidth 60 MHz 100 MHz or 200 MHz depending on the model or 20 MHz when the Bandwidth Limit option is set to ON Therefore the FFT spectrum can show valid frequency information higher than the oscilloscope bandwidth However the magnitude information near or above the bandwidth will not be accurate Displaying the FFT Spectrum Push the MATH MENU button to display the Math Menu Use the options to select the Source channel Window algorithm and FFT Zoom factor You can display only one FFT spectrum at a time 118 TDS1000 2000 Series Digital Oscilloscope User Manual Math FFT Math FFT option Comments Source Selects the channel used as the FFT source Window Selects the FFT window type for details refer to page 120 Rectangular FFT Zoom Changes the horizontal magnification of the FFT display for details refer to page 124 Available only on 4 channel oscilloscopes AM Trig Po3 230 0 kHz MATH Operation t FFT Fundamental r frequency component j Window Frequency a component FFT Zoom Loi NENNT NER QN PM ee Lisi 1 10dB 50 0 kHz 1 00 MS s M J X JN J Frequency at the center graticule line Vertical scale in dB per division 0 dB 1 Vrms Horizontal scale in frequency per division sample rate
23. coupling Trigger holdoff Trigger level Trigger mode Trigger source Trigger slope Trigger type Trigger Video Sync Trigger Video Standard Vertical bandwidth Vertical coupling VOLTS DIV Setting Adjusted to Sample or Peak Detect Set to YT Set to Dots for a video signal set to Vectors for an FFT spectrum otherwise unchanged Adjusted Adjusted Adjusted to DC Noise Reject or HF Reject Minimum Set to 50 Auto Adjusted refer to page 80 cannot use Autoset on the EXT TRIG signal Adjusted Edge or Video Adjusted Adjusted Full DC if GND was previously selected AC for a video signal otherwise unchanged Adjusted TDS1000 2000 Series Digital Oscilloscope User Manual 79 Reference 80 The Autoset function examines all channels for signals and displays corresponding waveforms Autoset determines the trigger source based on the following conditions m Ifmultiple channels have signals channel with the lowest frequency signal m No signals found the lowest numbered channel displayed when Autoset was invoked m No signals found and no channels displayed oscilloscope displays and uses channel 1 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Sine Wave When you use the Autoset function and the oscilloscope determines that the signal is similar to a sine wave the oscilloscope displays the following options Sine wave options Details ANM Displays several cycles
24. in number of samples per second Un Aa U oom FFT window type TDS1000 2000 Series Digital Oscilloscope User Manual 119 Math FFT Selecting an FFT Window Windows reduce spectral leakage in the FFT spectrum The FFT assumes that the YT waveform repeats forever With an integral number of cycles 1 2 3 the YT waveform starts and ends at the same amplitude and there are no discontinuities in the signal shape A non integral number of cycles in the YT waveform causes the signal start and end points to be at different amplitudes The transitions between the start and end points cause discontinuities in the signal that introduce high frequency transients Time domain YT waveform lt Center 2048 _ data points Discontinuities Without windowing 120 TDS1000 2000 Series Digital Oscilloscope User Manual Math FFT Applying a window to the YT waveform changes the waveform so that the start and stop values are close to each other reducing the discontinuities Time domain YT waveform Center 2048 g gt data points Point by point multiply Window M dH c function VL Hanning YT waveform after windowing lt a With windowing TDS1000 2000 Series Digital Oscilloscope User Manual 121 Math FFT 122 The Math FFT function includes three FFT Window options There is a trade off between frequency resolution and amplitude accuracy with each type of window What y
25. major and minor graticule divisions involved and multiplying by the scale factor For example if you counted five major vertical graticule divisions between the minimum and maximum values of a waveform and knew you had a scale factor of 100 mV division then you could easily calculate your peak to peak voltage as follows 5 divisions x 100 mV division 500 mV Cursor TDS1000 2000 Series Digital Oscilloscope User Manual Understanding Oscilloscope Functions Cursors This method allows you to take measurements by moving the cursors which always appear in pairs and reading their numeric values from the display readouts There are two types of cursors Voltage and Time When you use cursors be sure to set the Source to the waveform on the display that you want to measure To use cursors push the CURSOR button Voltage Cursors Voltage cursors appear as horizontal lines on the display and measure the vertical parameters Time Cursors Time cursors appear as vertical lines on the display and measure the horizontal parameters Automatic The MEASURE Menu can take up to five automatic measurements When you take automatic measurements the oscilloscope does all the calculating for you Because the measurements use the waveform record points they are more accurate than the graticule or cursor measurements Automatic measurements use readouts to show measurement resu
26. mode described on page 17 This mode samples the highest and lowest values so that the oscilloscope can detect faster signals If the shape of the waveform changes drastically you may have aliasing m Ifthe trigger frequency is faster than the display information you may have aliasing or a waveform that crosses the trigger level multiple times Examining the waveform should allow identify ing whether the shape of the signal is going to allow a single trigger crossing per cycle at the selected trigger level If multiple triggers are likely to occur select a trigger level that will generate only a single trigger per cycle If the trigger frequency is still faster than the display indicates you may have aliasing If the trigger frequency is slower this test is not useful m Ifthe signal you are viewing is also the trigger source use the graticule or the cursors to estimate the frequency of the displayed waveform Compare this to the Trigger Frequency readout in the lower right corner of the screen If they differ by a large amount you may have aliasing TDS1000 2000 Series Digital Oscilloscope User Manual 21 Understanding Oscilloscope Functions The next table lists the time bases that you should use to avoid aliasing at various frequencies and the respective sample rate At the fastest SEC DIV setting aliasing is not likely to occur due to the bandwidth limitations of the oscilloscope input amplifiers Settings to avoid aliasi
27. position the center of the spectrum at the center of the graticule Vertical Zoom and Position The channel vertical knobs become zoom and position controls for their respective channels when displaying the FFT spectrum The VOLTS DIV knob provides zoom factors of X0 5 X1 default X2 X5 and X10 The FFT spectrum is vertically magnified about the M marker math waveform reference point on the left edge of the screen Turn the VERTICAL POSITION knob clockwise to move the spectrum up TDS1000 2000 Series Digital Oscilloscope User Manual 125 Math FFT Measuring an FFT Spectrum Using Cursors You can take two measurements on FFT spectrums magnitude in dB and frequency in Hz Magnitude is referenced to 0 dB where 0 dB equals 1 Vrms You can use the cursors to take measurements at any zoom factor Push CURSOR p Source and select Math Push the Type option button to select between Magnitude and Frequency Use the Vertical Position knobs to move cursors 1 and 2 Use horizontal cursors to measure magnitude and vertical cursors to measure frequency The options display the delta between the two cursors the value at cursor 1 position and the value at cursor 2 position Delta is the absolute value of cursor 1 minus cursor 2 Magnitude cursors Frequency cursors You can also take a frequency measurement To do so turn the Horizontal Position knob to position a frequency component on
28. select a Trigger Mode to define how the oscilloscope acquires data when it does not detect a trigger condition The modes are Auto and Normal To perform a single sequence acquisition push the SINGLE SEO button Coupling You can use the Trigger Coupling option to determine which part of the signal will pass to the trigger circuit This can help you attain a stable display of the waveform To use trigger coupling push the TRIG MENU button select an Edge or Pulse trigger and select a Coupling option NOTE Trigger coupling affects only the signal passed to the trigger system It does not affect the bandwidth or coupling of the signal displayed on the screen To view the conditioned signal being passed to the trigger circuit push and hold down the TRIG VIEW button TDS1000 2000 Series Digital Oscilloscope User Manual 15 Understanding Oscilloscope Functions Position The horizontal position control establishes the time between the trigger and the screen center Refer to Horizontal Scale and Position Pretrigger Information on page 19 for more information on how to use this control to position the trigger Slope and Level The Slope and Level controls help to define the trigger The Slope option Edge trigger type only determines whether the oscilloscope finds the trigger point on the rising or the falling edge of a signal The TRIGGER LEVEL knob controls where on the edge the trigger point occurs Rising edge Falli
29. top option button to cycle through the Vertical channel Coupling options 32 TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics W Action The oscilloscope displays the type of action that will immediately occur when you push an Action option button For example when you push the DISPLAY Menu button and then push the Contrast Increase option button the oscilloscope changes the contrast immediately m Radio The oscilloscope uses a different button for each option The currently selected option is highlighted For example the oscilloscope displays various acquisition mode options when you push the ACQUIRE Menu button To select an option push the corresponding button Page Selection SANVE REC Setups Waveforms Setups Waveforms TDS1000 2000 Series Digital Oscilloscope User Manual Circular List Coupling Coupling Action DISPLAY Contrast Increase Contrast Decrease Radio ACQUIRE Sample Pa Peak detect Average 33 Operating Basics Vertical Controls VERTICAL EENEEEEEEEEEEEENI POSITION POSITION a a NV NV cunsoni cunson MENU MENU MENU VOLTS DIV VOLTS DIV gt CH 1 CH 2 CH 3 CH 4 CURSOR 1 and CURSOR 2 POSITION Positions the waveform vertically When you display and use cursors an LED lights to indicate the alternative function of the knobs to move the cursors All models CH 1 CH 2 CH 3 amp CH 4 MENU Displays the vertical menu se
30. using 48 looking at a noisy signal 54 measuring propagation delay 58 measuring pulse width 50 measuring ring amplitude 49 measuring ring frequency 48 measuring rise time 51 measuring two signals 46 optimizing the acquisition 57 peak detect using 54 reducing noise 55 taking automatic measurements 43 taking cursor measurements 48 triggering on a specific pulse width 60 triggering on a video signal 62 triggering on video fields 63 triggering on video lines 64 using persistence 72 using the math functions 69 using the window function 66 using XY mode 72 viewing impedance changes in a network 70 Attenuation probe 112 Auto trigger 101 Automatic measurements in Value readout 44 basic concepts 25 AUTOSET button 38 79 Autoset function 12 overview 79 pulse signal 82 sine waves 81 square wave 82 video signal 83 Average 74 77 Average mode 17 TDS1000 2000 Series Digital Oscilloscope User Manual 181 Index Bandwidth limit 112 Bandwidth limited readout 30 Bezel button xi Binary data RS 232 transfer 141 Break signals RS 232 protocol 142 Burst waveforms 117 C Calibration 110 automatic routine 10 Centronics port 131 CH 1 connector 39 MENU button 34 CH 2 connector 39 MENU button 34 CH 3 connector 39 MENU button 34 CH 4 connector 39 MENU button 34 Channel scale 30 Cleaning 173 Coarse resolution 112 Command abbreviating 150 Communications mod
31. your probe is operating properly The wizard also helps you adjust the probe compensation usually adjusted with a screw on the probe body or probe connector and set the Probe option attenuation factor in the vertical menu for example the menu that appears when you push the CH 1 MENU button You should do this each time you connect a probe to an input channel To use the Probe Check Wizard push the PROBE CHECK button If your probe is connected properly compensated properly and the Probe entry in the oscilloscope VERTICAL menu is set to match your probe the oscilloscope will display a PASSED message at the bottom of the screen Otherwise the oscilloscope will display directions on the screen to guide you in correcting these problems NOTE Probe check is useful for 1X 10X and 100X probes it does not work with the EXT TRIG front panel BNC To compensate a probe connected to the EXT TRIG front panel BNC follow these steps 1 Connect the probe to any channel BNC such as to CH 1 2 Push the PROBE CHECK button and follow the directions on the screen 3 After you verify that the probe functions properly and is compensated connect the probe to the EXT TRIG BNC TDS1000 2000 Series Digital Oscilloscope User Manual 7 Getting Started Manual Probe Compensation As an alternative method to Probe Check you can manually perform this adjustment to match your probe to the input channel AUTOSET 1 Set the Probe option
32. 104 type indicator 30 types 15 video 104 105 view 37 104 Trigger source 30 U U in readout 85 URL Tektronix xiii USER SELECT knob 36 alternative functions 107 holdoff control 109 Utility menus 110 UTILITY button 38 V Value readout displays 44 Vectors 86 Vertical menu 112 position 18 scale 18 status 111 Video signal Autoset function 83 Video trigger 104 application example 62 Voltage cursors 25 84 VOLTS DIV math waveform 93 Volts Div Coarse 112 Fine 112 VOLTS DIV control 34 W Waveforms acquire data 17 burst 117 compression 91 digitized 17 display style meaning 87 expansion 91 position 18 remove from screen 114 saving and recalling 98 scale 18 TDS1000 2000 Series Digital Oscilloscope User Manual 187 Index scanning 78 XY application example 72 take measurements 24 time domain 116 transient 117 Y Web site address Tektronix xiii Window time base 36 90 readout 30 Window Zone 90 92 Z Windows FFT spectrum 120 YT display format 86 Zoom FFT 124 X XY display format 86 88 188 TDS1000 2000 Series Digital Oscilloscope User Manual
33. 2 3 4 5 EN cin M Pos 11 30ms Wo Li ra dba ra ar La pra a aaa a Pa a a a 15 CH1 5Q0mVBy CH2 200mV M 500ms W 100ms CH1 f 750mV i Ed QE 1100000kffz 16 7 8 9 10 11 12 13 14 1 Icon display shows acquisition mode Sample mode Peak detect mode iad Average mode 28 TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics 2 Trigger status indicates the following C Armed The oscilloscope is acquiring pretrigger data All triggers are ignored in this state R Ready All pretrigger data has been acquired and the oscilloscope is ready to accept a trigger Trid d The oscilloscope has seen a trigger and is acquiring the posttrigger data Stop The oscilloscope has stopped acquiring waveform data Aca Complete The oscilloscope has completed a Single Sequence acquisition R Auto The oscilloscope is in auto mode and is acquiring waveforms in the absence of triggers C Scan The oscilloscope is acquiring and displaying waveform data continuously in scan mode 3 Marker shows horizontal trigger position Turn the HORIZON TAL POSITION knob to adjust the position of the marker 4 Readout shows the time at the center graticule The trigger time is Zero 5 Marker shows Edge or Pulse Width trigger level 6 On screen markers show the ground reference points of the displayed waveforms If there is no marker the channel is not displayed TDS1000 2000 S
34. 9 in the Reference chapter Taking Automatic Measurements The oscilloscope can take automatic measurements of most displayed signals To measure signal frequency period and peak to peak amplitude rise time and positive width follow these steps 1 Push the MEASURE button to see the Measure Menu 2 Push the top option button the Measure 1 Menu appears TDS1000 2000 Series Digital Oscilloscope User Manual 43 Application Examples 44 3 Push the Type option button and select Freq The Value readout displays the measurement and updates NOTE If a question mark displays in the Value readout turn the VOLTS DIV knob for the appropriate channel to increase the sensitivity or change the SEC DIV setting 4 Push the Back option button 5 Push the second option button from the top the Measure 2 Menu appears 6 Push the Type option button and select Period The Value readout displays the measurement and updates 7 Push the Back option button 8 Push the middle option button the Measure 3 Menu appears 9 Push the Type option button and select Pk Pk The Value readout displays the measurement and updates 10 Push the Back option button TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples 11 Push the second option button from the bottom the Measure 4 Menu appears 12 Push the Type option button and select Rise Time The Value readout displays the measurement and updates 13
35. AL POSITION controls set the horizontal scale and position The channel 2 VOLTS DIV and VERTICAL POSITION controls continue to set vertical scale and position The following functions do not work in XY display format Help Reference or Math waveforms Cursors Autoset resets display format to YT Time base controls Trigger controls Push the HELP button to display the Help menu The topics cover all the menu options and controls of the oscilloscope For more information on the Help system refer to page ix TDS1000 2000 Series Digital Oscilloscope User Manual 89 Reference Horizontal You can use the horizontal controls to change the horizontal scale and position of waveforms The horizontal position readout shows the time represented by the center of the screen using the time of the trigger as zero Changing the horizontal scale causes the waveform to expand or contract around the screen center Options Settings Comments Main The main horizontal time base setting is used to display the waveform Window Two cursors define a window zone Zone Adjust the Window Zone with the Horizon tal Position and SEC DIV controls Window Changes the display to show the wave form segment expanded to screen width within the window zone Trig knob Level Selects whether the Trigger Level knob Holdoff adjusts the trigger level volts or holdoff time sec The holdoff value is displayed For video trigger with sync on a lin
36. CH2 CH3 CH4 EXT TRIG 300V T Dal CAT I L L4 E amp 0 t AN CE aa Ce 4 channel models PROBE COMP Voltage probe compensation output and ground Use to electrically match the probe to the oscilloscope input circuit Refer to page 8 The probe compensation ground and BNC shields connect to earth ground and are considered to be ground terminals CAUTION If you connect a voltage source to a ground terminal you may damage the oscilloscope or the circuit under test To avoid this do not connect a voltage source to any ground terminals CH 1 CH 2 CH 3 amp CH 4 Input connectors for waveform display EXT TRIG Input connector for an external trigger source Use the Trigger Menu to select the Ext or Ext 5 trigger source TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics 40 TDS1000 2000 Series Digital Oscilloscope User Manual pae 17 Application Examples This section presents a series of application examples These simplified examples highlight the features of the oscilloscope and give you ideas for using it to solve your own test problems Taking simple measurements Using Autoset Using the Measure Menu to take automatic measurements Measuring two signals and calculating gain Taking cursor measurements Measuring ring frequency and ring amplitude Measuring pulse width Measuring rise time Analyzing signal detail Looking at a noisy signal Using the average function to se
37. CT SPECIAL OR CONSEQUENTIAL DAMAGES WARRANTY SUMMARY P2200 Probe Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a product proves defective within the respective period Tektronix will provide repair or replacement as described in the complete warranty statement To arrange for service or obtain a copy of the complete warranty statement please contact your nearest Tektronix sales and service office EXCEPT AS PROVIDED IN THIS SUMMARY OR THE APPLICABLE WARRANTY STATEMENT TEKTRONIX MAKES NO WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES DEED AERE Table of Contents General Safety Summary eee v Preface oues Ead Obs eRESE UE A Saha eee kee ER vii Help Systemi dese bos sui uos aa eee UD Sieh ada ORE st ix COnVentlOls eaae d eed Bre Pedy PEN E EL EE xi Product End of Life Handling 0004 xii Contacting Tektronix eee ii ew ene E ES XAR E EXE ETE xiii Getting Started oce esere ieee Leas RR dv eee ters 1 General Feattte S puse hs oe Oe ea mes RU E d bete 2 T stallatlOH s ooh eo eter bea e dtd Bee eds 4 POWER COM ssi ooo zc ee eRe EIN et Godse eee 4 Security Lo0p y cos e
38. Information 19 Taking Measurements 25 24h eden ce terns E S ROUEN ea 24 Gravcules 22 55 sepes te yuQ PEE It Rape Ag Yee vost pe 24 CUSO 27 00 ciao eet Col aie etek Rater rats 25 PAO MAAC 43 8 estne C qoe uit pa ek nore Ac ey E eae 25 Operating Basics oiu x vaveRekbss ecsv xw eade 27 Display Area 4c ax c cd s dene Se wd C8 Rew ee Ghee ESQ ES 28 Messag Alea eS ut Rod bacs ne het teat ahh alee 31 Using the Menu System osse cee hee eee Saeed Maun BEN ES 22 Vertical COBFPOLS y Sekt dev dopo bo b aes idees 34 Horizontal Controls 2 roy ve Re EDO EUER RE ER 35 TrgserCOnttOls er pape a us UP vieta cles Ed Cade 36 Menu and Control Buttons 2 9 t e ae ons chen 38 CODHGCFOIS domi vuoto e dabo et e em nantes Eadie 39 Application Examples eere 41 Taking Simple Measurements 0 020 ee eee 42 Using Autosta re Sores REUS Vues Sek Me REESE RM 42 Taking Automatic Measurements sss 43 Measuring Two Signals 24 244 E EXE 46 Taking Cursor Measurements 20 ce eee eee 48 Measuring Ring Frequency 0 2 e ee eee eee 48 Measuring Ring Amplitude 000 49 Measuring Pulse Width 0 0 eee eee eee 50 Measuring Rise Time een pee pesados 51 Analyzing Signal Detail 229m ReRhireeveO vC eich d NERIS 54 Looking at a Noisy Signal llelsuss 54 Separating the Signal from Noise 206 55 Capturing a Single Shot Signal
39. PROBE CHECK button If your probe is connected properly compensated properly and the Probe entry in the oscilloscope VERTICAL menu is set to match your probe the oscilloscope will display a PASSED message at the bottom of the screen Otherwise the oscilloscope will display directions on the screen to guide you in correcting these problems TDS1000 2000 Series Digital Oscilloscope User Manual Reference Save Recall Push the SAVE RECALL button to save or recall oscilloscope setups or waveforms Setups Options Settings Comments Setups Highlighting Setups displays the menus for storing or recalling oscilloscope setups Setup 1 to 10 Specifies the memory location in which to save the current oscilloscope settings or from which to recall the settings Save fT Completes the save action Recall Recalls the oscilloscope settings stored in the location chosen in the Setup field Key Points Saving and Recalling Setups The complete setup is stored in nonvolatile memory When you recall the setup the oscilloscope will be in the mode from which the setup was saved The oscilloscope saves the current setup if you wait three seconds after the last change before you power off the oscilloscope The oscilloscope then recalls this setup the next time you apply power Recalling the Default Setup You can push the DEFAULT SETUP button to initialize the oscilloscope to a known setup To view option and control settings that the oscilloscope recal
40. Push the Back option button 14 Push the bottom option button the Measure 5 Menu appears 15 Push the Type option button and select Pos Width The Value readout displays the measurement and updates 16 Push the Back option button CH1 Freg 1 000kH2 CH1 Period 1 000ms CH1 Pk Pk 512 CHI Rise Time 3 33857 CH1 Pos Width 333 3 u TDS1000 2000 Series Digital Oscilloscope User Manual 45 Application Examples Measuring Two Signals You are testing a piece of equipment and need to measure the gain of the audio amplifier You have an audio generator that can inject a test signal at the amplifier input Connect two oscilloscope channels to the amplifier input and output as shown Measure both signal levels and use the measurements to calculate the gain m O CH1 CH2 CHI Pk Pk 1 04 CH2 Pk Pk ELISEI CH1 None CHI None CH1 Hone 46 TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples To activate and display the signals connected to channel 1 and to channel 2 follow these steps 1 If the channels are not displayed push the CH 1 MENU and CH 2 MENU buttons 2 Push the AUTOSET button To select measurements for the two channels follow these steps Push the Measure button to see the Measure Menu Push the top option button the Measure 1 Me
41. S 232 interface such as transferring binary data processing break signals reporting RS 232 I O errors and checking command status Transferring Binary Data To use the RS 232 port to transfer binary data to the oscilloscope set up the interface as follows m Use hardware flagging RTS CTS whenever possible Hardware flagging guarantees no data loss m Alleight bits of binary data contain meaningful information To make sure that all eight bits are received or transmitted configure the external RS 232 device to receive and transmit eight bit characters set the RS 232 word length to eight bits Reporting RS 232 I O Errors Errors are reported when there is a problem with parity framing or input output buffer overruns To report errors the oscilloscope posts an event code When an error occurs the oscilloscope discards all input and output and waits for a new command TDS1000 2000 Series Digital Oscilloscope User Manual 141 TDS2CMA Communications Module 142 Checking Command Status If you want to check the status of each command sent you can append an STB query after every command and read the response string Processing Break Signals When the oscilloscope senses a break signal on the RS 232 port it returns DCL followed by the end of line terminator Internally the oscilloscope acts as if it received a GPIB DCL command causing the oscilloscope to erase the contents of the input and output buffers and t
42. SINGLE SEQ button Sequence is complete when one acquisition is acquired Acquisition mode Sample Peak Detect Average Sequence is complete when the defined number of acquisitions is reached refer to page 74 Scan Mode Display You can use the Horizontal Scan acquisition mode also called Roll mode to continuously monitor signals that change slowly The oscilloscope displays waveform updates from the left to the right of the screen and erases old points as it displays new points A moving one division wide blank section of the screen separates the new waveform points from the old The oscilloscope changes to the Scan acquisition mode when you turn the SEC DIV knob to 100 ms div or slower and select the Auto Mode option in the TRIGGER Menu To disable Scan mode push the TRIG MENU button and set the Mode option to Normal Stopping the Acquisition While the acquisition is running the waveform display is live Stopping the acquisition when you push the RUN STOP button freezes the display In either mode the waveform display can be scaled or positioned with the vertical and horizontal controls 78 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Autoset When you push the AUTOSET button the oscilloscope identifies the type of waveform and adjusts controls to produce a usable display of the input signal Function Acquire mode Display format Display type Horizontal position SEC DIV Trigger
43. TDS2CMA module installed 110 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Key Points Self Calibration The self calibration routine optimizes the oscilloscope accuracy for the ambient temperature For maximum accuracy you should perform a self cal if the ambient temperature changes by 5 C or more Follow the directions on the screen System Status Selecting System Status from the Utility Menu displays the menus available for obtaining a list of control settings for each group of oscilloscope controls Push any front panel menu button to remove the status screen Options Comments Horizontal Lists horizontal parameters of channels Vertical Lists vertical parameters of channels Trigger Lists trigger parameters Misc Lists the model of the oscilloscope and the software version number If the TDS2CMA module is installed lists values of the communications parameters TDS1000 2000 Series Digital Oscilloscope User Manual 111 Reference Vertical You can use the vertical controls to display waveforms adjust vertical scale and position and set input parameters Refer to page 93 for the vertical math descriptions Channel Vertical Menus There is a separate vertical menu for each channel Each option is set individually for each channel Options Settings Comments Coupling DC DC passes both AC and DC components of the input signal AC AC blocks the DC component of the input signal and attenu
44. Trigger Controls oto Sleek ahd xh dt eade On Bed aed gate ts 99 UY geet Set unc qc oy Sarees acea eye Pecan en won alt 110 Vertical 5 coser mese oti Aa eal ur raat edad ea ac e es d 112 Math EET iiy oue REESE UECEEnCETENUR MEE 115 Setting Up the Time Domain Waveform 116 Displaying the FFT Spectrum i5 rh mes 118 Selecting an FFT Window cs ess ec P YERFPCPYS TS 120 Magnifying and Positioning an FFT Spectrum 124 Measuring an FFT Spectrum Using Cursors 126 TDS1000 2000 Series Digital Oscilloscope User Manual iii Table of Contents TDS2CMA Communications Module 127 Installing and Removing an Extension Module 127 Checking Module Installation llle 130 Troubleshooting Module Installation lus 130 Sending Screen Data to an External Device 131 Setting Up and Testing the RS 232 Interface 134 Transferring Binary Data 0 0 0 000 eee 141 Reporting RS 232 I O Errors 0 2 cece ee eee 141 Setting Up and Testing the GPIB Interface 143 Command ENY sorde Eo Gh See ese DUE EVE EPIS 150 Appendix A Specifications 0 cece eee ee eee 151 Appendix B Accessories 0 cece cece eee eeeeee 169 Appendix C General Care and Cleaning 173 Appendix D Default Setup eeeees 175 Appendix E GPIB and RS 232 Interfaces 179
45. URSOR 2 knob to place the second cursor on the data output transition 9 Read the propagation delay in the Delta readout in the Cursor Menu TDS1000 2000 Series Digital Oscilloscope User Manual 59 Application Examples Triggering on a Specific Pulse Width You are testing the pulse widths of a signal in a circuit It is critical that the pulses all be a specific width and you need to verify that they are Edge triggering shows that your signal is as specified and the pulse width measurement does not vary from the specification However you think there might be a problem To set up a test for pulse width aberrations follow these steps 1 Display the suspect signal on Ch 1 If Ch1 is not displayed push the CH1 MENU button 2 Push the AUTOSET button to trigger a stable display 3 Push the Single Cycle option button in the AUTOSET Menu to view a single cycle of the signal and to quickly take a Pulse Width measurement 4 Push the TRIG MENU button 5 Push the Type option button to select Pulse 60 TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples 6 Push the Source option button to select CHI 7 Turn the TRIGGER LEVEL knob to set the trigger level near the bottom of the signal 8 Push the When option button to select equal 9 Push the Set Pulse Width option button and turn the USER SELECT knob to set the pulse width to the value rep
46. User Manual Tektronix 7 TDS1000 and TDS2000 Series Digital Storage Oscilloscope 071 1064 00 This document supports firmware version FV v1 00 and above www tektronix com Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY SUMMARY TDS1000 and TDS2000 Series Digital Storage Oscilloscope Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of three 3 years from the date of shipment from an authorized Tektronix distributor If a product or CRT proves defective within the respective period Tektronix will provide repair or replacement as described in the complete warranty statement To arrange for service or obtain a copy of the complete warranty statement please contact your nearest Tektronix sales and service office EXCEPT AS PROVIDED IN THIS SUMMARY OR THE APPLICABLE WARRANTY STATEMENT TEKTRONIX MAKES NO WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL TEKTRONIX BE LIABLE FOR INDIRE
47. al Oscilloscope User Manual Understanding Oscilloscope Functions Horizontal Scale and Position Pretrigger Information You can adjust the HORIZONTAL POSITION control to view waveform data before the trigger after the trigger or some of each When you change the horizontal position of a waveform you are actually changing the time between the trigger and the center of the display This appears to move the waveform to the right or left on the display For example if you want to find the cause of a glitch in your test circuit you might trigger on the glitch and make the pretrigger period large enough to capture data before the glitch You can then analyze the pretrigger data and perhaps find the cause of the glitch You change the horizontal scale of all the waveforms by turning the SEC DIV knob For example you might want to see just one cycle of a waveform to measure the overshoot on its rising edge The oscilloscope shows the horizontal scale as time per division in the scale readout Since all active waveforms use the same time base the oscilloscope only displays one value for all the active channels except when you use Window Zone For information on how to use the window function refer to page 92 For oscilloscope specific descriptions refer to page 35 in the Operating Basics chapter and page 90 in the Reference chapter TDS1000 2000 Series Digital Oscilloscope User Manual 19 Understanding Oscilloscope Functions
48. alling edge of the pulse You can see the following measurements in the Cursor Menu m The time at Cursor 1 relative to the trigger m The time at Cursor 2 relative to the trigger m The delta time which is the pulse width measurement TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples NOTE The Positive Width measurement is available as an automatic measurement in the Measure Menu described on page 94 The Positive Width measurement also displays when you select the Single Cycle Square option in the AUTOSET Menu Refer to page 82 Measuring Rise Time After measuring the pulse width you decide that you need to check the rise time of the pulse Typically you measure rise time between the 10 and 90 levels of the waveform To measure the rise time follow these steps 1 Turn the SEC DIV knob to display the rising edge of the waveform TDS1000 2000 Series Digital Oscilloscope User Manual 51 Application Examples 52 Turn the VOLTS DIV and VERTICAL POSITION knobs to set the waveform amplitude to about five divisions Push the CH 1 MENU button to see the CH1 Menu if it is not displayed Push the Volts Div option button and select Fine Turn the VOLTS DIV knob to set the waveform amplitude to exactly five divisions Turn the VERTICAL POSITION knob to center the waveform position the baseline of the wave
49. aster setting fewer cycles the FFT spectrum shows a larger frequency range and reduces the possibility of FFT aliasing described on page 122 However the oscilloscope also displays less frequency resolution TDS1000 2000 Series Digital Oscilloscope User Manual Math FFT To set up the FFT display follow these steps 1 Push the MATH MENU button 2 Set the Operation option to FFT 3 Select the Math FFT Source channel In many cases the oscilloscope can produce a useful FFT spectrum even if the YT waveform is not triggered This is especially true if your signal is periodic or random noisy NOTE Transient or burst waveforms should be triggered and positioned as close as possible to center screen Nyquist Frequency The highest frequency that any real time digitizing oscilloscope can measure without errors is one half the sample rate This frequency is called the Nyquist frequency Frequency information above the Nyquist frequency is undersampled which causes FFT aliasing described on page 122 The math function transforms the center 2048 points of the time domain waveform into an FFT spectrum The resulting FFT spectrum contains 1024 points that go from DC 0 Hz to the Nyquist frequency TDS1000 2000 Series Digital Oscilloscope User Manual 117 Math FFT Normally the display compresses the FFT spectrum horizontally into 250 points but you can use the FFT Zoom function to expand the FFT spectrum to more
50. ates signals below 10 Hz GND GND disconnects the input signal BW Limit 20 MHz Limits the bandwidth to reduce display Off noise filters the signal to reduce noise and other unwanted high frequency components Volts Div Coarse Selects the resolution of the Volts Div knob Fine Coarse defines a 1 2 5 sequence Fine changes the resolution to small steps between the coarse settings Probe Set to match the type of probe you are using to ensure correct vertical readouts Invert Inverts the waveform Bandwidth is reduced to 7 MHz with a 1X probe 112 TDS1000 2000 Series Digital Oscilloscope User Manual Reference NOTE The oscilloscope vertical response rolls off slowly above its bandwidth 60 MHz 100 MHz or 200 MHz depending on the model or 20 MHz when the Bandwidth Limit option is set to On Therefore the FFT spectrum can show valid frequency information higher than the oscilloscope bandwidth However the magnitude information near or above the bandwidth will not be accurate Knobs VERTICAL POSITION Knobs Use the VERTICAL POSITION knobs to move the channel waveforms up or down on the screen VOLTS DIV Knobs Use the VOLTS DIV knobs to control how the oscilloscope amplifies or attenuates the source signal of channel waveforms When you turn a VOLTS DIV knob the oscilloscope increases or decreases the vertical size of the waveform on the screen with respect to the ground level Key Points GND Coupling Use GND coupling to d
51. ations and compliances m The Appendix B Accessories chapter briefly describes standard and optional accessories m The Appendix C General Care and Cleaning chapter describes how to take care of the oscilloscope m The Appendix D Default Setup chapter contains a list of the menus and controls with the default factory settings that are recalled when you push the DEFAULT SETUP front panel button m The Appendix E GPIB and RS 232 Interfaces chapter compares the two protocols to help you decide which one to use viii TDS1000 2000 Series Digital Oscilloscope User Manual Preface Help System The oscilloscope has a Help system with topics that cover all the features of the oscilloscope You can use the Help system to display several kinds of information m General information about understanding and using the oscilloscope such as Using the Menu System m Information about specific menus and controls such as the Vertical Position Control W Advice about problems you may face while using an oscillo scope such as Reducing Noise The Help system provides three ways for you to find the information you need context sensitive hyperlinks and an index Context Sensitive The oscilloscope displays information about the last menu displayed on the screen when you push the HELP front panel button The HELP SCROLL LED lights under the HORIZONTAL POSITION knob to indicate the alternative function of the knob If the topic uses
52. attenuation in the PROBE button channel menu to 10X Set the switch to COMP 10X on the P2200 probe and connect the probe to channel 1 on the oscilloscope If e deu you use the probe hook tip ensure a proper connection by firmly inserting the O F tip onto the probe 2 Attach the probe tip to the PROBE COMP 5V connector and the reference lead to the PROBE COMP Ground connector Display the channel and then push the AUTOSET button zab gg De 3 Check the shape of the displayed waveform Overcompensated Undercompensated zie mea de Compensated correctly 4 If necessary adjust your probe Repeat as necessary 8 TDS1000 2000 Series Digital Oscilloscope User Manual Getting Started Probe Attenuation Setting Probes are available with various attenuation factors which affect the vertical scale of the signal The Probe Check function verifies that the Probe attenuation option matches the attenuation of the probe As an alternative method to Probe Check you can push a vertical menu button such as the CH 1 MENU button and select the Probe option that matches the attenuation factor of your probe NOTE The default setting for the Probe option is 10X Be sure that the Attenuation switch on the P2200 probe matches the Probe option in the oscilloscope Switch settings are 1X and 10X NOTE When the Attenuation switch is set to 1X the P2200 probe limits the bandwidth of the oscilloscope to 7 MHz To
53. control of waveforms during scan mode Window Zone Use the Window Zone option to define a segment of a waveform to see more detail The Window time base setting cannot be set slower than the Main time base setting Vertical bars define Window Zone lt Main Window Zone time base displayed displayed Window Expands the Window Zone to cover the entire screen NOTE When you change between the Main Window Zone and Window views the oscilloscope erases any waveform saved on the screen through persistence Holdoff Use holdoff to help stabilize the display of aperiodic waveforms Refer to Trigger Controls on page 99 for more information 92 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Math Push the MATH MENU button to display the waveform math operations Push the MATH MENU button again to remove the math waveform display Refer to page 112 for vertical system descriptions Operations Setting Comments CH1 CH2 The channel 2 waveform is subtracted from subtraction the channel 1 waveform CH2 CH1 The channel 1 waveform is subtracted from the channel 2 waveform CH3 CH4 The channel 4 waveform is subtracted from the channel 3 waveform CH4 CH3 The channel 3 waveform is subtracted from the channel 4 waveform CH1 CH2 Channels 1 and 2 are added together addition CH3 CH4 Channels 3 and 4 are added together FFT Refer to the Math FFT chapter on page 115
54. criterion B EN 61000 3 2 AC power line harmonic emissions 1 Emissions that exceed the levels required by this standard may occur when this equipment is connected to a test object To ensure compliance to the standards listed above attach only high quality shielded cables to this instrument High quality shielded cables typically are braid and foil types that have low impedance connections to shielded connectors at both ends 3 The increase in trace noise while subjected to a test field 3 V m over the frequency range 80 MHz to 1 GHz with 80 amplitude modulation at 1 kHz is not to exceed 2 major divisions peak to peak Ambient conducted fields may induce triggering when the trigger threshold is offset less than 1 major division from ground reference Theincrease in trace noise while subjected to a test field 3 V m over the frequency range 150 kHz to 80 MHz with 8096 amplitude modulation at 1 kHz is not to exceed 1 major division peak to peak Ambient conducted fields may induce triggering when the trigger threshold is offset less than 0 5 major divisions from ground reference TDS1000 2000 Series Digital Oscilloscope User Manual 163 Appendix A Specifications Oscilloscope EMC Certifications and Compliances Cont Meets the intent of Australian EMC Framework as demonstrated to the following specification AS NZS 2064 1 2 Emissions comply with FCC Code of Federal Regulations 47 Part 15 Subpart B Class A Limits A
55. cted OFF Power ON Power vi TDS1000 2000 Series Digital Oscilloscope User Manual Fr A Preface This manual contains operating information for the TDS1000 Series and TDS2000 Series Digital Storage Oscilloscopes The manual consists of the following chapters The Getting Started chapter briefly describes features of the oscilloscope and provides installation instructions The Understanding Oscilloscope Functions chapter describes basic operations and functions of the oscilloscope setting up the oscilloscope triggering acquiring data scaling and positioning waveforms and taking measurements The Operating Basics chapter covers operating principles of the oscilloscope The Application Examples chapter includes examples of a wide variety of measurements to give you ideas on how to solve your own measurement problems The Reference chapter describes the selections or available range of values for each option TDS1000 2000 Series Digital Oscilloscope User Manual vii Preface m The Math FFT chapter contains detailed information about how to use the Math FFT function m The TDS2CMA Communications Module chapter describes this optional module and how to set up the RS 232 GPIB and Centronics ports to use the oscilloscope with external devices such as printers and computers m The Appendix A Specifications chapter includes electrical environmental and physical specifications for the oscilloscope as well as certific
56. d EPA ee iiJ Triggered waveform Untriggered waveforms For oscilloscope specific descriptions refer to page 36 in the Operating Basics chapter and page 99 in the Reference chapter TDS1000 2000 Series Digital Oscilloscope User Manual 13 Understanding Oscilloscope Functions When you push the RUN STOP or SINGLE SEQ buttons to start an acquisition the oscilloscope goes through the following steps 1 Acquires enough data to fill the portion of the waveform record to the left of the trigger point This is also called the pretrigger Continues to acquire data while waiting for the trigger condition to occur Detects the trigger condition Continues to acquire data until the waveform record is full Displays the newly acquired waveform NOTE For Edge and Pulse triggers the oscilloscope counts the rate at which trigger events occur to determine trigger frequency and displays the frequency in the lower right corner of the screen Source You can use the Trigger Source options to select the signal that the oscilloscope uses as a trigger The source can be any signal connected to a channel BNC to the EXT TRIG BNC or the AC power line available only with Edge triggers TDS1000 2000 Series Digital Oscilloscope User Manual Understanding Oscilloscope Functions Types The oscilloscope provides three types of triggers Edge Video and Pulse Width Modes You can
57. d systems m Analyze vibration To use the Math FFT mode you need to perform the following tasks m Setup the source time domain waveform m Display the FFT spectrum m Select a type of FFT window m Adjust the sample rate to display the fundamental frequency and harmonics without aliasing m Use zoom controls to magnify the spectrum W Use cursors to measure the spectrum TDS1000 2000 Series Digital Oscilloscope User Manual 115 Math FFT Setting Up the Time Domain Waveform Before you use FFT mode you need to set up the time domain YT waveform To do so follow these steps 1 2 116 Push AUTOSET to display a YT waveform Turn the VERTICAL POSITION knob to move the YT waveform to the center vertically zero divisions This ensures that the FFT will show a true DC value Turn the HORIZONTAL POSITION knob to position the part of the YT waveform that you want to analyze in the center eight divisions of the screen The oscilloscope calculates the FFT spectrum using the center 2048 points of the time domain waveform Turn the VOLTS DIV knob to ensure that the entire waveform remains on the screen The oscilloscope may display erroneous FFT results by adding high frequency components if the entire waveform is not visible Turn the SEC DIV knob to provide the resolution you want in the FFT spectrum If possible set the oscilloscope to display many signal cycles If you turn the SEC DIV knob to select a f
58. dth reduced to 6 MHz with a 1X probe TDS1000 2000 Series Digital Oscilloscope User Manual 157 Appendix A Specifications Oscilloscope Specifications Cont Trigger Trigger Level Accuracy Accuracies are for signals having rise and fall times 2 20 ns typical Accuracy 0 2 div x volts div within 4 divisions from center screen EXT 6 of setting 40 mV 6 of setting 200 mV ed risa TO 50 Operates with input signals 50 Hz ypica Default Settings Video Coupling is AC and Auto except for a single sequence acquisition Trigger Sensitivity Video Composite video signal Trigger Type typical Im Range Internal Pk pk amplitude of 2 divisions EXT 400 mV EXT 5 2V Signal Formats and Supports NTSC PAL and SECAM broadcast systems for any Field Rates Video field or any line Trigger Type Holdoff Range 500 ns to 10 s 158 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications Oscilloscope Specifications Cont Pulse Width Trigger Pulse Width Trigger modes Pulse Width Trigger Point Pulse Width Range Pulse Width Equal Guardband Not Equal Guardband Trigger when lt Less than gt Greater than Equal or Not Equal Positive pulse or Negative pulse Equal The oscilloscope triggers when the trailing edge of the pulse crosses the trigger level Not Equal If the pulse is narrower than the specified width the trigger point is the trailing edge Othe
59. e Sample Rate and 50 ppm over any 21 ms time interval Delay Time Accuracy Delta Time Measure Accuracy mon pe curacy Eull Single shot Sample mode 1 sample interval 100 ppm Bandwidth x reading 0 6 ns gt 16 averages 1 sample interval 100 ppm x reading 0 4 ns Sample interval s div 250 Position Range TDS1002 TDS1012 TDS2002 TDS2012 and TDS2014 5 ns div to 10 ns div 4 div x s div to 20 ms 4 div x s div to 50 ms 250 us div to 50 s div 4 div x s div to 50 s TDS2022 and TDS2024 2 5 ns div to 5 ns div 4 div x s div to 20 ms 156 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications Oscilloscope Specifications Cont Trigger Trigger Sensitivity Coupling Sensitivity Edge Trigger Type DC CH1 CH2 1 div from DC to 10 MHz CH3 CH4 1 5 div from 10 MHz to Full EXT 200 mV from DC to 100 MHz 350 mV from 100 MHz to 200 MHz EXT 5 1 V from DC to 100 MHz 1 5 V from 100 MHz to 200 MHz Trigger Sensitivity Coupling Sensitivity Edge Trigger Type typical Same as DC at 50 Hz and above NOISE Reduces the DC coupled trigger sensitivity by REJ 2 times for 10 mv div to 5 V div HF REJ Same as the DC coupled limit from DC to 7 kHz attenuates signals above 80 kHz LF REJ Same as the DC coupled limits for frequencies above 300 kHz attenuates signals below 300 kHz Trigger Level Range Range CH1 CH2 8 divisions from center of screen CH3 CH4 EXT 5 8 V Bandwi
60. e number the USER SELECT alternative function knob switches between setting a line number and Trigger Level 90 TDS1000 2000 Series Digital Oscilloscope User Manual Reference NOTE You can push the horizontal option buttons to switch between an entire waveform display and an enlarged more detailed part of it The axis for vertical scale is the ground level A readout near the top right of the screen displays the current horizontal position in seconds An M indicates the Main time base and a W indicates the Window time base The oscilloscope also indicates horizontal position with an arrow icon at the top of the graticule Knobs and Buttons HORIZONTAL POSITION Knob Use to control the position of the trigger relative to the center of the screen SET TO ZERO Button Use to set the horizontal position to zero SEC DIV Knob Horizontal Scale Use to change the horizontal time scale to magnify or compress the waveform Key Points SEC DIV If waveform acquisition is stopped using the RUN STOP or SINGLE SEQ button the SEC DIV control expands or compresses the waveform TDS1000 2000 Series Digital Oscilloscope User Manual 91 Reference Scan Mode Display Roll Mode When the SEC DIV control is set to 100 ms div or slower and the trigger mode is set to Auto the oscilloscope enters the scan acquisition mode In this mode the waveform display updates from left to right There is no trigger or horizontal position
61. eform on which to take the cursor measurements The readouts display this measurement Delta Displays the difference delta between the cursors Cursor 1 Displays cursor 1 location time is referenced to the trigger position voltage is referenced to ground Cursor 2 Displays cursor 2 location time is referenced to the trigger position voltage is referenced to ground For a Math FFT source measures magnitude and frequency Available only on 4 channel oscilloscopes 84 TDS1000 2000 Series Digital Oscilloscope User Manual Reference NOTE The oscilloscope must display a waveform for the cursors and cursor readouts to appear Key Points Cursor Movement Use the CURSOR 1 and CURSOR 2 knobs to move cursors 1 and 2 You can move the cursors only while the Cursor Menu is displayed NA AWN Voltage cursors Time cursors U in Level and Delta Readouts Vertical sensitivity should match on waveforms used for math operations If they do not match and you use cursors to measure the waveform result of a math operation a U displays that represents unknown Default Setup Push the DEFAULT SETUP button to recall most of the factory option and control settings but not all For more information refer to Appendix D Default Setup on page 175 TDS1000 2000 Series Digital Oscilloscope User Manual 85 Reference Display Push the DISPLAY button to choose how waveforms are presented and to
62. elay contacts arc when the relay opens The fastest you can open and close the relay is about once per minute so you need to capture the voltage across the relay as a single shot acquisition 56 To set up for a single shot acquisition follow these steps 1 mood Wes ou qe 7 Turn the vertical VOLTS DIV and horizontal SEC DIV knobs to the appropriate ranges for the signal you expect to see Push the ACQUIRE button to see the Acquire Menu Push the Peak Detect option button Push the TRIG MENU button to see the Trigger Menu Push the Slope option button and select Rising Turn the LEVEL knob to adjust the trigger level to a voltage midway between the open and closed voltages of the relay Push the SINGLE SEQ button to start the acquisition When the relay opens the oscilloscope triggers and captures the event TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples Optimizing the Acquisition The initial acquisition shows the relay contact beginning to open at the trigger point This is followed by a large spike that indicates contact bounce and inductance in the circuit The inductance can cause contact arcing and premature relay failure You can use the vertical horizontal and trigger controls to optimize the settings before the next single shot event is captured When the next acquisition is captured with the new settings when you push the
63. en you can use the FFT Zoom option to magnify the FFT spectrum TDS1000 2000 Series Digital Oscilloscope User Manual 123 Math FFT m If you do not need to view frequencies components above 20 MEZ set the Bandwidth Limit option to On m Putan external filter on the source signal to bandwidth limit the source waveform to frequencies below that of the Nyquist frequency m Recognize and ignore the aliased frequencies m Use zoom controls and the cursors to magnify and measure the FFT spectrum Magnifying and Positioning an FFT Spectrum You can magnify and use cursors to take measurements on the FFT spectrum The oscilloscope includes an FFT Zoom option to magnify horizontally To magnify vertically you can use the vertical controls Horizontal Zoom and Position The FFT Zoom option lets you horizontally magnify the FFT spectrum without changing the sample rate Zoom factors are X1 default X2 X5 and X10 At zoom factor X1 and with the waveform centered in the graticule the left graticule line is at 0 Hz and the right graticule line is at the Nyquist frequency 124 TDS1000 2000 Series Digital Oscilloscope User Manual Math FFT When you change the zoom factor the FFT spectrum is magnified about the center graticule line In other words the axis of horizontal magnification is the center graticule line Turn the HORIZONTAL POSITION knob clockwise to move the FFT spectrum to the right Push the SET TO ZERO button to
64. eries Digital Oscilloscope User Manual 29 Operating Basics 7 An arrow icon indicates that the waveform is inverted 8 Readouts show the vertical scale factors of the channels 9 A Bw icon indicates that the channel is bandwidth limited 10 Readout shows main time base setting 11 Readout shows window time base setting if it is in use 12 Readout shows trigger source used for triggering 13 Icon shows selected trigger type as follows J Edge trigger for the rising edge X Edge trigger for the falling edge se Video trigger for line sync wi Video trigger for field sync 2H S Pulse Width trigger positive polarity HH s Pulse Width trigger negative polarity 14 Readout shows Edge or Pulse Width trigger level 15 Display area shows helpful messages some messages display for only three seconds If you recall a saved waveform readout shows information about the reference waveform such as RefA 1 00V 500us 16 Readout shows trigger frequency 30 TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics Message Area The oscilloscope displays a message area item number 15 in the previous figure at the bottom of the screen that conveys the following types of helpful information W Directions to access another menu such as when you push the TRIG MENU button For TRIGGER HOLDOFF go to HORIZONTAL Menu m Suggestion of what you might want to do next such as when you push the MEASURE
65. est acquired voltage in each interval NOTE If you set the SEC DIV setting to 2 5 us div or faster the acquisition mode changes to Sample because the sample rate is fast enough that Peak Detect is not necessary The oscilloscope does not display a message to tell you that the mode was changed to Sample TDS1000 2000 Series Digital Oscilloscope User Manual Reference When there is enough waveform noise a typical peak detect display shows large black areas The TDS1000 and TDS2000 series oscilloscopes display this area with diagonal lines to improve display performance Typical peak detect display TDS1000 TDS2000 peak detect display Average Use Average acquisition mode to reduce random or uncorrelated noise in the signal you want to display Data is acquired in sample mode then a number of waveforms are averaged together Select the number of acquisitions 4 16 64 or 128 to average for the waveform RUN STOP Button Push the RUN STOP button when you want the oscilloscope to continuously acquire waveforms Push the button again to stop the acquisition SINGLE SEQ Button Push the SINGLE SEQ button when you want the oscilloscope to acquire a single waveform and then stop Each time you push the SINGLE SEQ button the oscilloscope begins to acquire another waveform After the oscilloscope detects a trigger it completes the acquisition and stops TDS1000 2000 Series Digital Oscilloscope User Manual 77 Reference
66. expanded view 4 Turn the HORIZONTAL POSITION knob to position the window around the portion of the waveform that you want to expand 66 TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples 5 Push the Window option button to see the expanded portion of the waveform 6 Turn the SEC DIV knob to optimize viewing the expanded waveform To switch between the Main and Window views push the Main or Window option button in the Horizontal Menu TDS1000 2000 Series Digital Oscilloscope User Manual 67 Application Examples Analyzing a Differential Communication Signal You are having intermittent problems with a serial data communica tion link and you suspect poor signal quality Set up the oscilloscope to show you a snapshot of the serial data stream so you can verify the signal levels and transition times Because this is a differential signal you use the math function of the oscilloscope to view a better representation of the waveform IGninnagnenaaagasanon Inananaaaaaancaoaca Q CH1 CH2 nooo oo 0000000000000 inmnmnunonocaonoannnanaaanaancooaon NLIUJUDCCOOLDOUOCGOOUUOOOCOOGOUOOOOU OCOOOOUOGCCOOOOUd OO00000000000O000 0000O0000000000000000000000 68 TDS1000 2000 Series Digital Oscilloscope User Manual
67. fer to Checking Module Installation on page 130 TDS1000 2000 Series Digital Oscilloscope User Manual 139 TDS2CMA Communications Module 140 Check that you are using the correct RS 232 cable Determine whether your external device requires a null modem or a straight through connection Refer to the table on page 134 for information about RS 232 cables Check that the RS 232 cable is firmly connected to both the oscilloscope and the correct port on the external device Check that the printer or the program on the personal computer is using the same port to which you connected the RS 232 cable Try your program or printer again Check that the oscilloscope RS 232 settings match the settings used by the external device a Determine the RS 232 settings for the external device b On the oscilloscope push UTILITY p Options RS 232 Setup c Set the oscilloscope to match the settings of the external device d Try your terminal emulator program or printer again 6 Try setting both the oscilloscope and the external device to a slower baud rate TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module 7 If you receive only part of the printer file try these remedies a Lengthen the timeout for the external device b Make sure the printer is set to receive a binary file not a text file RS 232 Conventions There are processing conventions that are specific to the R
68. flagging flagging None Xon Xoff Hardflagging RTS CTS Use hardware flagging when you transfer binary data EOL String CR LF CR LF Sets the end of line terminator sent by LF CR the oscilloscope the oscilloscope can receive any EOL string Parity None Even Odd Adds an error check bit ninth bit to each character 136 TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module Testing the RS 232 Interface To test the oscilloscope RS 232 interface follow these steps 1 Connect the oscilloscope to a personal computer PC using an appropriate RS 232 cable refer to the table on page 134 2 Power on the PC 3 On the PC run a terminal emulator program such as Microsoft Windows Hyperterminal Make sure the PC serial port is set as follows Function Setting Baud rate 9600 Data flow control hardflagging Parity None 4 Power on the oscilloscope 5 Connect the oscilloscope probe to the channel 1 input connector Attach the probe tip and ground lead to the PROBE COMP connectors The PROBE COMP signal is a square wave with a frequency of 1 kHz and a peak voltage of 2 amp 5 V The next figure shows how to connect the probe to the oscilloscope TDS1000 2000 Series Digital Oscilloscope User Manual 137 TDS2CMA Communications Module PROBE COMP 6 On the oscilloscope push UTILITY p Options p RS 232 7 Check that the menu settings match those listed in
69. form 2 5 divisions below the center graticule Push the CURSOR button to see the Cursor Menu Push the Type option button and select Time Turn the CURSOR 1 knob to place the cursor at the point where the waveform crosses the second graticule line below center screen This is the 10 level of the waveform TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples 10 Turn the CURSOR 2 knob to place the second cursor at the point where the waveform crosses the second graticule line above center screen This is the 9046 level of the waveform 11 The Delta readout in the Cursor Menu is the rise time of the waveform 5 divisions NOTE The Rise Time measurement is available as an automatic measurement in the Measure Menu described on page 94 The Rise Time measurement also displays when you select the Rising Edge option in the AUTOSET Menu Refer to page 82 TDS1000 2000 Series Digital Oscilloscope User Manual 53 Application Examples Analyzing Signal Detail You have a noisy signal displayed on the oscilloscope and you need to know more about it You suspect that the signal contains much more detail than you can now see in the display Looking at a Noisy Signal The signal appears noisy and you suspect that noise is causing problems in your circuit To better analyze the n
70. greater than width setting gt Threshold level Triggers when pulse is equal Triggers when pulse is not to width setting 5 equal to width setting 5 Threshold level gt i gt lt Tolerance Tolerance e Trigger point Refer to page 60 for an example of triggering on aberrant pulses 106 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Knobs and Buttons LEVEL or USER SELECT Knob Use to control the Trigger Level Trigger Holdoff Video Line Number or Pulse Width The primary function of this knob is to set the trigger level When an alternative function is active the USER SELECT LED lights below the knob USER SELECT Description Holdoff Sets the amount of time before another trigger event can be accepted to switch between the Trigger Level and Holdoff functions change the Trig Knob option in the Horizontal Menu Video line number Sets the oscilloscope to a specific line number when the Trigger Type option is set to Video and the Sync option is set to Line Number Pulse width Sets the width of the pulse when the Trigger Type option is set to Pulse and you select the Set Pulse Wdith option SET TO 50 Button Use the SET TO 50 button to quickly stabilize a waveform The oscilloscope automatically sets the Trigger Level to be about halfway between the minimum and maximum voltage levels This is useful when you connect a signal to the EXT TRIG BNC and set the trigger s
71. haracteristics of the circuit Turn the VOLTS DIV and VERTICAL POSITION knobs to optimize the display 10 Push the Persist option button and select Infinite 11 Push the Contrast Increase or Contrast Decrease option buttons T2 to adjust the contrast of the screen As you adjust the ambient temperature the display persistence captures the changes in the characteristics of the circuit TDS1000 2000 Series Digital Oscilloscope User Manual aaa eee Reference This chapter describes the menus and operating details associated with each front panel menu button or control Topic Page Acquire menu RUN STOP button and SINGLE SEQ button 74 Autoset 79 Cursors 84 Default setup 85 Display 86 Help 89 Horizontal controls menu SET TO ZERO button HORIZONTAL POSITION knob 90 and SEC DIV knob Math 93 Measure 94 Print 96 Probe check 96 Save Recall 97 Trigger controls menu SET TO 50 button FORCE TRIG button TRIG VIEW 99 button and LEVEL or USER SELECT knob Utility 110 Vertical controls menu VERTICAL POSITION knobs and VOLTS DIV knobs 112 TDS1000 2000 Series Digital Oscilloscope User Manual 73 Reference Acquire Push the ACQUIRE button to set acquisition parameters Options Settings Comments Sample Use to acquire and accurately display most waveforms this is the default mode Peak Detect Use to detect glitches and reduce the possibility of aliasing Average Use to reduce random or uncorrelated noi
72. hen wait for a new command Break signals do not change oscilloscope settings or stored data and do not interrupt front panel operation or nonprogrammable functions If a break signal is sent in the middle of a character stream several characters immediately preceding or following the break can be lost The controller should wait until it receives the DCL and the end of line terminator string before sending more characters RS 232 Connector Pinout Diagram The next figure shows the pin numbering and signal assignments for the TDS2CMA RS 232 connector TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module 12 34 5 OQ OQO OOG O eee 6 7 8 9 No connection Receive data RxD Transmit data TxD Data terminal ready DTR Signal ground GND Data set ready DSR Request to send RTS Clear to send CTS No connection e o 100i1 c5rn input output output input output input Setting Up and Testing the GPIB Interface You may need to set up and test the module GPIB interface GPIB is an 8 bit parallel communications standard that lets the oscilloscope communicate with an external device such as a controller computer terminal or printer Connecting to External GPIB Devices Follow these guidelines when you connect your oscilloscope to a GPIB network W Power off the oscilloscope and all external devices before connecting the oscilloscope to the GPIB netw
73. ied for this product Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation TDS1000 2000 Series Digital Oscilloscope User Manual V General Safety Summary Do Not Operate in Wet Damp Conditions Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Safety Terms and Symbols Terms in This Manual These terms may appear in this manual A N WARNING Warning statements identify conditions or practices that could result in injury or loss of life N CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product These symbols may appear on the product i Protective Ground Measurment CAUTION Measurment Earth Terminal Ground Terminal Refer to Manual Input Terminal Mains Disconnected Mains Conne
74. ings of your printer and print speed determine how long it takes to print the data Additional time may be required according to the format selected NOTE You can use the oscilloscope while the printer prints TDS1000 2000 Series Digital Oscilloscope User Manual 133 TDS2CMA Communications Module Setting Up and Testing the RS 232 Interface You may need to set up and test the module RS 232 interface RS 232 is an 8 bit serial communications standard that lets the oscilloscope communicate with an external RS 232 device such as a computer terminal or printer The standard defines two device types Data Terminal Equipment DTE and Data Communications Equipment DCE The oscilloscope is a DTE device RS 232 Conventions on page 141 describes RS 232 conventions RS 232 Connector Pinout Diagram on page 142 shows a diagram of the 9 pin RS 232 connector with pin numbers and signal assign ments Selecting an RS 232 Cable You need an RS 232 cable to connect the oscilloscope to an external device You can use the next table to choose the correct cable To connect the Tektronix part oscilloscope to You need this type cable number PC AT or laptop 9 pin female to 9 pin female null 012 1379 00 computers modem PCs with 25 pin serial 9 pin female to 25 pin female null 012 1380 00 port connector modem Serial printers suchas 9 pin female to 25 pin male 012 1298 00 an HP Deskjet and Sun null modem workstations Telephone modem
75. is set to DC and the trigger level to 0 volts Use when you need to analyze signals related to the frequency of the power line such as lighting equipment and power supply devices the oscilloscope automatically generates the trigger sets the Trigger Coupling to DC and sets the Trigger Level to zero volts The AC Line selection is available only when you select the Edge trigger type NOTE To view an Ext Ext 5 or AC Line trigger signal push and hold down the TRIG VIEW button 102 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Coupling Coupling allows you to filter the trigger signal used to trigger an acquisition Option Details DC Passes all components of the signal Noise Reject Adds hysteresis to the trigger circuitry this reduces sensitivity which reduces the chance of falsely triggering on noise HF Reject Attenuates the high frequency components above 80 kHz LF Reject Blocks the DC component and attenuates the low frequency components below 300 kHz AC Blocks DC components and attenuates signals below 10 Hz NOTE Trigger coupling affects only the signal passed to the trigger system It does not affect the bandwidth or coupling of the signal displayed on the screen Pretrigger The trigger position is typically set at the horizontal center of the screen In this case you are able to view five divisions of pretrigger information Adjusting the Horizontal Position of the waveform allows
76. isplay a zero volt waveform Internally the channel input is connected to a zero volt reference level Fine Resolution The vertical scale readout displays the actual Volts Div setting while in the fine resolution setting Changing the setting to coarse does not change the vertical scale until the VOLTS DIV control is adjusted TDS1000 2000 Series Digital Oscilloscope User Manual 113 Reference U in Level and Delta Readouts Vertical sensitivity should match on waveforms used for math operations If they do not match and you use cursors to measure the waveform result of a math operation a U displays that represents unknown units or scaling Remove Waveform To remove a waveform from the display push the menu button for the channel to display its vertical menu Push the menu button again to remove the waveform NOTE You do not have to display a channel waveform to use it as a trigger source or for math operations 114 TDS1000 2000 Series Digital Oscilloscope User Manual ee Math FFT This chapter contains detailed information on how to use the Math FFT Fast Fourier Transform You can use the FFT Math mode to convert a time domain YT signal into its frequency components spectrum You can use the Math FFT mode to view the following types of signals m Analyze harmonics in power lines M Measure harmonic content and distortion in systems m Characterize noise in DC power supplies m Test impulse response of filters an
77. le dU Re Gy MER PASE SRY OES 4 Functional Check uoo shady Seo eA sha ee ee RSS 5 Prob Salty ve 842s Pees oe ERAN See RE Se RA SAN ANDE 6 Probe Cneck Wizat 2 osse p texere bo SUR TIR ee E Saw Ss 7 Manual Probe Compensation 0 cee eee 8 Probe Attenuation Setting 0 cece eee eee 9 Self Calibration seed se OS owe ROWE ee aOR RO XE 10 Understanding Oscilloscope Functions 11 Setting Up the Oscilloscope osse ses EE p PP SP 12 Usim A toset Suo petted adie ded o Ele b d 12 Saving dise UD cee wees eh x Wyle a Ea A BIER SV RO IN SAL 12 Recalling a Setup re sere teed et ete se Dev e ERES 12 Default Setup wei eo eos week pu etc Coe ete e e ROUES 13 Triggering Lud uiuo a1 BiG dert ore BOO tel ded Edad E 13 DOULCE cg par eb hy ute Ply ocn De Ed OE d CE CENE RO h 14 ibo c Rx 15 MIOUES eax 9 once sv we ee bee ORE EERE E SENS rweRk oes 15 Couplings cust eva gti Benes eee C OO oot a Uk 15 POS TENG ie o Sod an a ta ita ln Sy ant tah bel ar e ser ean tek ind 16 Slope dnt EEVel Us Pireta doute a lege e s p els at no 16 TDS1000 2000 Series Digital Oscilloscope User Manual i Table of Contents Acquiring Signals sss vr pacio eane ea ie yep RE V 17 Acquisition Modes vs cone ced need XX Ny Stew EER Rae Rs 17 Time BaSe joie ce oes See ee EE ECHOS REOR 18 Scaling and Positioning Waveforms lesse 18 Vertical Scale and Position 25 s4 404 hia Ness n 18 Horizontal Scale and Position Pretrigger
78. lections and toggles the display of the channel waveform on and off VOLTS DIV CH 1 CH 2 CH 3 amp CH 4 Selects calibrated scale factors MATH MENU Displays waveform math operations menu and can also be used to toggle the math waveform on and off 34 TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics Horizontal Controls EH HORIZONTAL EE Bl HORIZONTAL 4 POSITION gt O HELP SCROLL HORIZ MENU HELP SCROLL o stop fox e fy Av 2 channel models 4 channel models POSITION Adjusts the horizontal position of all channel and math waveforms The resolution of this control varies with the time base setting For information on windows refer to page 92 NOTE To make a large adjustment to the horizontal position turn the SEC DIV knob to a larger value change the horizontal position and then turn the SEC DIV knob back to the previous value When you view help topics you can use this knob to scroll through links or index entries TDS1000 2000 Series Digital Oscilloscope User Manual 35 Operating Basics HORIZ MENU Displays the Horizontal Menu SET TO ZERO Sets the horizontal position to zero SEC DIV Selects the horizontal time div scale factor for the main or the window time base When Window Zone is enabled it changes the width of the window zone by changing the window time base Refer to page 92 for details about creating and using Window Zone Trigger Co
79. lloscope User Manual Appendix A Specifications Oscilloscope Specifications Cont Vertical DC Gain Accuracy 3 for Sample or Average acquisition mode 5 V div to 10 mV div 4 for Sample or Average acquisition mode 5 mV div and 2 mV div DC Measurement Measurement Type Accuracy Accuracy Average Acquisition Mode Volts Measurement Repeatability Average Acquisi tion Mode Average of 16 wave x 396 x reading 0 1 div 1 mV when forms with vertical position 10 mV div or greater is selected at zero Average of 16 wave 3 x reading vertical position forms with vertical position 1 of vertical position 0 2 div not at zero Add 2 mV for settings from 2 mV div to 200 mV div Add 50 mV for settings from gt 200 mV div to 5 V div Delta volts between any 3 x reading 0 05 div two averages of 16 waveforms acquired under same setup and ambient conditions TDS1000 2000 Series Digital Oscilloscope User Manual 155 Appendix A Specifications Oscilloscope Specifications Cont Horizontal Sample Rate Range TDS1002 TDS1012 TDS2022 and TDS2024 TDS2002 TDS2012 and TDS2014 5 S s to 1 GS s 5 S s to 2 GS s Waveform Interpolation sin x x Record Length 2500 samples for each channel SEC DIV Range TDS 1002 TDS1012 TDS2022 and TDS2024 TDS2002 TDS2012 and TDS2014 5 ns div to 50 s div in a 1 2 5 2 5 ns div to 50 s div in a 1 5 sequence 2 5 5 sequenc
80. ls when you push this button refer to Appendix D Default Setup on page 175 TDS1000 2000 Series Digital Oscilloscope User Manual 97 Reference Waveforms Options Comments Waveforms EN Highlighting Waveforms displays the menu for storing or recalling waveforms Source Choose the waveform display to store Ref Choose the reference location to store or recall a waveform Stores source waveform to the chosen reference location Ref x LN Displays or removes the reference Save waveform on the screen Available only on 4 channel oscilloscopes Waveform must be displayed to save it as a reference waveform Saving and Recalling Waveforms The oscilloscope must display any waveform that you want to save Two channel oscilloscopes can store two reference waveforms in nonvolatile memory Four channel oscilloscopes can store four but only display two at a time The oscilloscope can display both reference waveforms and channel waveform acquisitions Reference waveforms are not adjustable but the oscilloscope does display the horizontal and vertical scales at the bottom of the screen 98 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Trigger Controls You can define the trigger through the Trigger Menu and front panel controls Trigger Types Three types of triggering are available Edge Video and Pulse Width A different set of options display for each type of trigger Option Details
81. lternative method requires more steps but may be necessary depending on the video signal To use the method follow these steps 1 2 3 64 Push the TRIG MENU button to see the Trigger Menu Push the top option button and select Video Push the Sync option button and select All Lines or Line Number and turn the USER SELECT knob to set a specific line number Push the Standard option button and select NTSC Turn the SEC DIV knob to see a complete video line across the screen Turn the VOLTS DIV knob to ensure that the entire video signal is visible on the screen TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples x Incoming video signal 75 Q terminator TDS1000 2000 Series Digital Oscilloscope User Manual 65 Application Examples Using the Window Function to See Waveform Details You can use the window function to examine a specific portion of a waveform without changing the main display If you want to view the color burst in the previous waveform in more detail without changing the main display follow these steps 1 Push the HORIZ MENU button to see the Horizontal Menu and select the Main option 2 Push the Window Zone option button 3 Turn the SEC DIV knob and select 500 ns This will be the SEC DIV setting of the
82. lts These readouts are updated periodically as the oscilloscope acquires new data For measurement descriptions refer to page 94 in the Reference chapter TDS1000 2000 Series Digital Oscilloscope User Manual 25 Understanding Oscilloscope Functions 26 TDS1000 2000 Series Digital Oscilloscope User Manual S Operating Basics The front panel is divided into easy to use functional areas This chapter provides you with a quick overview of the controls and the information displayed on the screen The next figure shows the front panels for 2 channel and 4 channel models s TWO CHANNEL 60 MHz Tektronix TDS1002 neral storace oscpioscoPt 1GS s 2 channel models FOUR CHANNFI 200 MH7 Tektronix TDS2024 opra storace oscpLoscoPE zGS STOP Il HOREONTAL Ell E PROBZCI 20K POSIIION POSIIDN E POSION o eC 6 a E g curcon cursor Her scou CH1 VATH CH2 CHa HORE VENU MENU MENU MENU VOLTSIDI VOLTSDIV CH1 CH2 D T Le i 4 channel models TDS1000 2000 Series Digital Oscilloscope User Manual 27 Operating Basics Display Area In addition to displaying waveforms the display is filled with many details about the waveform and the oscilloscope control settings NOTE For similar details for the FFT function refer to page 119 1
83. more than one page turn the HELP SCROLL knob to move from page to page within the topic TDS1000 2000 Series Digital Oscilloscope User Manual ix Preface Hyperlinks Most of the help topics contain phrases marked with angle brackets such as Autoset These are links to other topics Turn the HELP SCROLL knob to move the highlight from one link to another Push the Show Topic option button to display the topic corresponding to the highlighted link Push the Back option button to return to the previous topic Index Push the front panel HELP button then push the Index option button Push the Page Up or Page Down option buttons until you find the index page that contains the topic you want to view Turn the HELP SCROLL knob to highlight a help topic Push the Show Topic option button to display the topic NOTE Push the Exit option button or any menu button to remove the Help text from the screen and return to displaying waveforms TDS1000 2000 Series Digital Oscilloscope User Manual Preface Conventions This manual uses the following conventions m Front panel buttons knobs and connectors appear in all uppercase letters For example HELP PRINT Menu options appear with the first letter of each word in upper case For example Peak Detect Window Zone Front panel buttons and knob labels All upper case O O O O CJ D C CJ C O 5 Option buttons First letter of each w
84. n ratio 10 1 296 1 1 296 Compensation 18 pf 35 pf Compensation is fixed correct for Range all oscilloscopes with 1 M 2 input Input Resistance 10 M Q 3 at DC 1M Q x 396 at DC Maximum input 10X position 300 Vrms CAT I or 300 V DC CAT I voltage 300 Vams CAT II or 300 V DC CAT II 100 Vans CAT III or 100 V DC CAT Ill 420 V peak lt 50 DF 1 s PW 670 V peak 2096 DF 1 s PW 1X position 150 Vams CAT I or 150 V DC CAT I 150 Vnus CAT Il or 150 V DC CAT Il 100 Vams CAT III or 100 V DC CAT Ill 210 V peak 5096 DF 1 s PW 330 V peak 2096 DF 1 s PW 300 Vnys Installation Category Il derate at 20 dB decade above 900 kHz to 13 V peak AC at 3 MHz and above For non sinusoidal waveforms peak value must be less than 450 V Excursion above 300 V should be less than 100 ms duration RMS signal level including any DC component removed through AC coupling must be limited to 300 V If these values are exceeded damage to the instrument may result Refer to the Overvoltage Category on the next page 1 As defined in EN61010 1 on the next page TDS1000 2000 Series Digital Oscilloscope User Manual 165 Appendix A Specifications P2200 Probe Specifications Cont Certifications and Compliances EC Declaration of Compliance was demonstrated to the following specification as listed Conformity in the Official Journal of the European Communities Low Voltage Directive 73 23 EEC as amended by 93 68 EEC EN 61010 1 A2
85. n waveforms used for math operations If they do not match and you use cursors to measure the waveform result a U displays that represents unknown in the level and delta readouts Viewing Impedance Changes in a Network 70 You have designed a circuit that needs to operate over a wide temperature range You need to evaluate the change in impedance of the circuit as the ambient temperature is changed Connect the oscilloscope to monitor the input and output of the circuit and capture the changes that occur as you vary the tempera ture TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples m DONO CH1 CH2 TDS1000 2000 Series Digital Oscilloscope User Manual 71 Application Examples To view the input and output of the circuit in an XY display follow these steps 1 Push the CH 1 MENU button and set the Probe option attenuation to 10X Push the CH 2 MENU button and set the Probe option attenuation to 10X Set the switches to 10X on the P2200 probes Connect the channel 1 probe to the input of the network and connect the channel 2 probe to the output Push the AUTOSET button Turn the VOLTS DIV knobs to display approximately the same amplitude signals on each channel Push the DISPLAY button Push the Format option button and select XY The oscilloscope displays a Lissajous pattern representing the input and output c
86. ng edge Trigger level can be 7 adjusted vertically E Trigger slope can be rising or falling TDS1000 2000 Series Digital Oscilloscope User Manual Understanding Oscilloscope Functions Acquiring Signals When you acquire a signal the oscilloscope converts it into a digital form and displays a waveform The acquisition mode defines how the signal is digitized and the time base setting affects the time span and level of detail in the acquisition Acquisition Modes There are three acquisition modes Sample Peak Detect and Average Sample In this acquisition mode the oscilloscope samples the signal in evenly spaced intervals to construct the waveform This mode accurately represents signals most of the time However this mode does not acquire rapid variations in the signal that may occur between samples This can result in aliasing described on page 20 and may cause narrow pulses to be missed In these cases you should use the Peak Detect mode to acquire data Peak Detect In this acquisition mode the oscilloscope finds the highest and lowest values of the input signal over each sample interval and uses these values to display the waveform In this way the oscilloscope can acquire and display narrow pulses which may have otherwise been missed in Sample mode Noise will appear to be higher in this mode Average In this acquisition mode the oscilloscope acquires several waveforms averages them and displays the
87. ng in Sample mode Maximum Time base Samples per frequency SEC DIV second component 25 to 250 0 ns 1 GS s or 200 0 MHz 2 GS s 500 0 ns 200 0 MHz 1 0 us 125 0 MHz 2 5 us 50 0 MHz 5 0 us 25 0 MHz 10 0 us 12 5 MHz 25 0 us 5 0 MHz 50 0 us 2 5 MHz 100 0 us 1 25 MHz 250 0 us 500 0 kHz 500 0 us 250 0 kHz Depending on the oscilloscope model Bandwidth reduced to 6 MHz with a 1X probe 22 TDS1000 2000 Series Digital Oscilloscope User Manual Understanding Oscilloscope Functions Settings to avoid aliasing in Sample mode Cont Maximum Time base Samples per frequency SEC DIV second component 1 0 ms 125 0 kHz 2 5 ms 50 0 kHz 5 0 ms 25 0 kHz 10 0 ms 12 5 kHz 25 0 ms 5 0 kHz 50 0 ms 2 5 kHz 100 0 ms 1 25 kHz 250 0 ms 500 0 Hz 500 0 ms 250 0 Hz 1 0s 125 0 Hz 2 55 50 0 Hz 50s 25 0 Hz 10 0s 12 5 Hz 2505s 5 0 Hz 50 0s 2 5 Hz TDS1000 2000 Series Digital Oscilloscope User Manual 23 Understanding Oscilloscope Functions Taking Measurements 24 The oscilloscope displays graphs of voltage versus time and can help you to measure the displayed waveform There are several ways to take measurements You can use the graticule the cursors or an automated measurement Graticule This method allows you to make a quick visual estimate For example you might look at a waveform amplitude and determine that it is a little more than 100 mV You can take simple measurements by counting the
88. nput source as the trigger signal When Select how to compare the trigger pulse relative to the value selected in the Set Pulse Width option i Set Pulse Width 33 ns to 10 0 Select this option to use the USER Sec SELECT TRIGGER knob to set a width Polarity Positive Select to trigger on positive or negative Negative pulses Mode Auto Select the type of triggering Normal Normal mode is best for most Pulse Width trigger applications Coupling AC Selects the components of the trigger DC signal applied to the trigger circuitry see Noise Reject Edge Trigger for details on page 100 HF Reject LF Reject More I Use to switch between submenu pages Available only on 4 channel oscilloscopes TDS1000 2000 Series Digital Oscilloscope User Manual 105 Reference Trigger Frequency Readout The oscilloscope counts the rate at which trigger events occur to determine trigger frequency and displays the frequency in the lower right corner of the screen Key Points Trigger When The pulse width of the source must be 5 ns for the oscilloscope to detect the pulse When options Details Triggers the oscilloscope when the signal pulse width is equal to or not equal to the specified pulse width within a 5 a tolerance lt Triggers the oscilloscope when the source signal pulse width is less than or greater than the specified pulse width gt Triggers when pulse is Triggers when pulse is less than width setting
89. ntrols 36 ENEN TRIGGER TRIGGER SESS LEVEL LEVEL TRIG FORCE SETTO TRG G VIEW TRIG 50 2 MENU A USER SELECT USER SELECT TRIG MENU 4 channel models FORCE TRIG TRIG VEW PROBE CHECK PROBE COMP 5V 1kHz TL 2 channel models LEVEL and USER SELECT When you use an Edge trigger the primary function of the LEVEL knob is to set the amplitude level the signal must cross to cause an acquisition You can also use the knob to perform USER SELECT alternative functions The LED lights below the knob to indicate an alternative function TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics USER SELECT Description Holdoff Sets the amount of time before another trigger event can be accepted refer to Holdoff on page 109 Video line number Sets the oscilloscope to a specific line number when the Trigger Type option is set to Video and the Sync option is set to Line Number Pulse width Sets the width of the pulse when the Trigger Type option is set to Pulse and you select the Set Pulse Wdith option TRIG MENU Displays the Trigger Menu SET TO 50 The trigger level is set to the vertical midpoint between the peaks of the trigger signal FORCE TRIG Completes an acquisition regardless of an adequate trigger signal This button has no effect if the acquisition is already stopped TRIG VIEW Displays the trigger waveform in place of the channel waveform while the TRIG VIEW b
90. nu appears Push the Source option button and select CH1 1 2 3 4 Push the Type option button and select Pk Pk 5 Push the Back option button 6 Push the second option button from the top the Measure 2 Menu appears p Push the Source option button and select CH2 oo Push the Type option button and select Pk Pk 9 Push the Back option button Read the displayed peak to peak amplitudes for both channels 10 To calculate the amplifier voltage gain use these equations output amplitude VUES CaS input amplitude VoltageGain dB 20 X logio VoltageGain TDS1000 2000 Series Digital Oscilloscope User Manual 47 Application Examples Taking Cursor Measurements You can use the cursors to quickly take time and voltage measure ments on a waveform Measuring Ring Frequency To measure the ring frequency at the rising edge of a signal follow these steps 1 Push the CURSOR button to see the Cursor Menu 2 Push the Type option button and select Time 3 Push the Source option button and select CH1 4 Turn the CURSOR 1 knob to place a cursor on the first peak of the ring 5 Turn the CURSOR 2 knob to place a cursor on the second peak of the ring You can see the delta time and frequency the measured ring frequency in the Cursor Menu ype Source Delta 4 10 00ns 100 0MHz Cursor 1 5600ns Cursor 2 15 60ns 48 TDS1000 2000
91. oise follow these Steps 1 Push the ACQUIRE button to see the Acquire Menu 2 Push the Peak Detect option button 3 If necessary push the DISPLAY button to see the Display Menu Use the Contrast Increase and Contrast Decrease option buttons to adjust the contrast to see the noise more easily Peak detect emphasizes noise spikes and glitches in your signal especially when the time base is set to a slow setting 54 TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples Separating the Signal from Noise Now you want to analyze the signal shape and ignore the noise To reduce random noise in the oscilloscope display follow these steps 1 Push the ACQUIRE button to see the Acquire Menu 2 Push the Average option button 3 Push the Averages option button to see the effects of varying the number of running averages on the waveform display Averaging reduces random noise and makes it easier to see detail in a signal In the example below a ring shows on the rising and falling edges of the signal when the noise is removed TDS1000 2000 Series Digital Oscilloscope User Manual 55 Application Examples Capturing a Single Shot Signal The reliability of a reed relay in a piece of equipment has been poor and you need to investigate the problem You suspect that the r
92. on 34 Measure menu 94 MEASURE button 38 Measurements automatic 25 94 basic concepts 24 cursor 25 48 fall time 95 FFT spectrum 126 frequency 94 graticule 24 mean 95 negative width 95 peak to peak 95 period 94 positive width 95 rise time 95 RMS 95 types 94 Menu system using 32 Menus Acquire 74 Cursor 84 Display 86 Horizontal 90 Math 93 Math FFT 118 Measure 94 Save Recall 97 Trigger 99 Utility 110 Vertical 112 Mercury end of life handling xii Messages 30 31 Normal operation recall default setup 13 Normal trigger 101 NTSC 104 Nyquist frequency 117 184 TDS1000 2000 Series Digital Oscilloscope User Manual Index 0 Option button xi Options Action type 33 Circular List type 32 Page Selection type 32 Radio type 33 Oscilloscope end of life handling xii front panels 27 specifications 151 164 understanding functions 11 P P2200 probe specifications 165 167 PAL 104 Peak Detect mode 17 74 76 Persistence 86 88 Phone number Tektronix xiii Ports communications 131 Position horizontal 90 vertical 112 POSITION control horizontal 35 vertical 34 Positioning waveforms basic concepts 18 Power 4 Power cords 4 ordering 171 Pretrigger 14 Pretrigger view 103 PRINT button 38 96 Printer setup 131 Printing screen data 96 133 testing the port 133 PROBE CHECK button 7 Probe Check Wizard 7 PROBE COMP connector 39 Probe o
93. ord on screen is upper case NOTE Option buttons can also be called screen buttons side menu buttons bezel buttons or soft keys m The p delimiter separates a series of button pushes For example UTILITY Options p RS 232 means that you push the UTILITY button then push the Options option button and then push the RS 232 option button TDS1000 2000 Series Digital Oscilloscope User Manual xi Preface Product End of Life Handling Components that Contain Mercury The cold cathode fluorescent tube located in the liquid crystal display backlight contains trace amounts of mercury When you are ready to reclaim the instrument you must properly transfer it according to local regulations concerning mercury containing equipment or ship the instrument to the Tektronix Recycling Operations RAMS You can contact Tektronix for the RAMS shipping address and instructions xii TDS1000 2000 Series Digital Oscilloscope User Manual Preface Contacting Tektronix Phone Address Web site Sales support Service support Technical support 1 800 833 9200 Tektronix Inc Department or name if known 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA www tektronix com 1 800 833 9200 select option 1 1 800 833 9200 select option 2 Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pacific time This phone number is toll free in North America Afte
94. ork TDS1000 2000 Series Digital Oscilloscope User Manual 143 TDS2CMA Communications Module m Connect the oscilloscope to the GPIB network Use an appropri ate GPIB cable You can stack cable connectors The next table lists cables that you can order to connect the oscilloscope to the GPIB network Tektronix part number 012 0991 00 012 0991 01 Cable type GPIB 6 6 feet 2 meters GPIB 3 3 feet 1 meter W Assign a unique device address to the oscilloscope No two devices can share the same device address The GPIB Settings information describes how to set the oscilloscope GPIB interface W Power on at least two thirds of the GPIB devices while using the network GPIB Settings To set the oscilloscope GPIB interface follow these steps 1 If you have not done so yet connect the oscilloscope to the GPIB network 144 TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module 2 On the oscilloscope push UTILITY Options jp GPIB Setup 3 Push the Address option button to assign a unique address to the oscilloscope 4 Push the Bus Connection option button to have the oscilloscope start or stop using the GPIB bus Comments Sets oscilloscope GPIB bus address Bus Connection Talk Listen Off Bus Select Talk Listen to start oscillo scope GPIB bus communications Select Off Bus tostop oscilloscope GPIB bus communications NOTE The oscilloscope stores these setting
95. orted by the Pulse Width measurement in step 3 10 Push more page 1 of 2 and set the Mode option to Normal You should achieve a stable display with the oscilloscope triggering on normal pulses 11 Push the When option button to select lt or gt If there are any aberrant pulses that meet the specified When condition the oscilloscope triggers NOTE The trigger frequency readout shows the frequency of events the oscilloscope considers to be triggers and may be less than the frequency of the input signal in Pulse Width trigger mode TDS1000 2000 Series Digital Oscilloscope User Manual 61 Application Examples Triggering on a Video Signal You are testing the video circuit in a piece of medical equipment and need to display the video output signal The video output is an NTSC standard signal Use the video trigger to obtain a stable display 75 Q terminator Eee e OO CH 1 TDS1000 2000 Series Digital Oscilloscope User Manual 62 Application Examples NOTE Most video systems use 75 ohm cabling The oscilloscope inputs do not properly terminate low impedance cabling To avoid amplitude inaccuracy from improper loading and reflections place a 75 ohm feedthrough terminator Tektronix part number 011 0055
96. ou want to measure and your source signal characteristics help you to determine which window to use Window Measure Characteristics Hanning Periodic Better frequency poorer magnitude waveforms accuracy than Flattop Flattop Periodic Better magnitude poorer frequency waveforms accuracy than Hanning Rectangular Pulses or Special purpose window for waveforms that transients do not have discontinuities This is essential ly the same as no window FFT Aliasing Problems occur when the oscilloscope acquires a time domain waveform containing frequency components that are greater than the Nyquist frequency refer to Nyquist Frequency on page 117 The frequency components that are above the Nyquist frequency are undersampled appearing as lower frequency components that fold back around the Nyquist frequency These incorrect components are called aliases TDS1000 2000 Series Digital Oscilloscope User Manual Math FFT i lt Nyquist frequency one half sample rate Amplitude Lab ae ae tof Frequency A Aliased frequencies Actual frequencies Eliminating Aliases To eliminate aliases try the following remedies m Turn the SEC DIV knob to set the sample rate to a faster setting Since you increase the Nyquist frequency as you increase the sample rate the aliased frequency components should appear at their proper frequency If too many frequency components are shown on the scre
97. ource to Ext or Ext 5 TDS1000 2000 Series Digital Oscilloscope User Manual 107 Reference 108 FORCE TRIG Button Use the FORCE TRIG button to complete the current waveform acquisition whether or not the oscilloscope detects a trigger This is useful for SINGLE SEQ acquisitions and Normal trigger mode In Auto trigger mode the oscilloscope automatically forces triggers periodically if it does not detect a trigger TRIG VIEW Button Use the Trigger View mode to have the oscillo scope display the conditioned trigger signal You can use this mode to see the following types of information effects of the Trigger Coupling option AC Line trigger source and the signal connected to the EXT TRIG BNC NOTE This is the only button that you must hold down to use When you hold down the TRIG VIEW button the only other button you can use is the PRINT button The oscilloscope disables all other front panel buttons The knobs continue to be active TDS1000 2000 Series Digital Oscilloscope User Manual Reference Holdoff You can use the Trigger Holdoff function to produce a stable display of complex waveforms such as pulse trains Holdoff is the time between when the oscilloscope detects one trigger and when it is ready to detect another The oscilloscope will not trigger during the holdoff time For a pulse train you can adjust the holdoff time so the oscilloscope triggers only on the first pulse in the train TDS1000 2000 Serie
98. parate a signal from noise Capturing a single shot signal Optimizing the acquisition Measuring propagation delay Triggering on a pulse width Triggering on a video signal Triggering on video fields and video lines Using the window function to see waveform details Analyzing a differential communication signal using math functions Viewing impedance changes in a network using XY mode and persistance TDS1000 2000 Series Digital Oscilloscope User Manual 41 Application Examples Taking Simple Measurements 42 You need to see a signal in a circuit but you do not know the amplitude or frequency of the signal You want to quickly display the signal and measure the frequency period and peak to peak amplitude X Using Autoset To quickly display a signal follow these steps 1 Push the CH 1 MENU button and set the Probe option attenuation to 10X 2 Setthe switch to 10X on the P2200 probe TDS1000 2000 Series Digital Oscilloscope User Manual Application Examples 3 Connect the channel 1 probe to the signal 4 Push the AUTOSET button The oscilloscope sets the vertical horizontal and trigger controls automatically If you want to optimize the display of the waveform you can manually adjust these controls NOTE The oscilloscope displays relevant automatic measurements in the waveform area of the screen based on the signal type detected For oscilloscope specific descriptions refer to page 7
99. pe does not recognize the module at power on follow these steps 1 e 130 Power off the oscilloscope 2 Follow the ESD precautions on page 128 3 4 5 Disconnect all cables from the module Remove the module as described on page 129 Examine the oscilloscope connector for bent broken or missing pins If any pins are bent carefully straighten them Reinstall the module onto the oscilloscope Power on the oscilloscope If the oscilloscope still does not show the module installed contact the nearest Tektronix service center TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module Sending Screen Data to an External Device The TDS2CMA module lets you send screen data to an external device such as a controller printer or computer C EX c Jo RS 232 connector o Jer4 Centronics connector o jt GPIB connector Printer Setup To setup the module do the following 1 Power on the oscilloscope 2 Push UTILITY Options Printer Setup 3 Push the option buttons to change the settings to match those of your printer The next table lists the settings you can change NOTE The oscilloscope stores these settings until you change them even if you push the DEFAULT SETUP button TDS1000 2000 Series Digital Oscilloscope User Manual 131 TDS2CMA Communications Module
100. perating continuously for twenty minutes within the specified operating temperature W You must perform the Do Self Cal operation accessible through the Utility menu if the operating temperature changes by more than 5 C m The oscilloscope must be within the factory calibration interval All specifications are guaranteed unless noted typical Oscilloscope Specifications Acquisition Acquisition Modes Sample Peak Detect and Average Acquisition Rate Up to 180 waveforms per second per channel Sample typical acquisition mode no measurements Single Sequence Acquisition Mode Acquisition Stops After Sample Peak Detect Single acquisition all channels simultaneously Average N acquisitions all channels simultaneously N is selectable from 4 16 64 and 128 TDS1000 2000 Series Digital Oscilloscope User Manual 151 Appendix A Specifications Oscilloscope Specifications Cont Inputs Input Coupling Input Impedance DC Coupled P2200 Probe Attenuation Supported Probe Attenuation Factors Maximum Voltage Between Signal and Common at input BNC DC AC or GND 1 MQ 2 in parallel with 20 pF 3 pF 1X 10X 1X 10X 100X 1000X Overvollage Category Maximum Voltage CAT and CAT Il 300 Vrms Installation Category Il CAT Ill 150 Vams Installation Category Il derate at 20 dB decade above 100 kHz to 13 V peak AC at 3 MHz and above For non sinusoidal waveforms peak value must be less than 450
101. pplied For the TDS2000 series color monitor reference waveforms appear white and waveforms with persistence applied appear in the same color as the Main waveform but with less intensity 3 A broken line indicates the waveform display no longer matches the controls This happens when you stop the acquisition and change a control setting that the oscilloscope is not able to apply to the displayed waveform For example changing the trigger controls on a stopped acquisition causes a broken line waveform Key Points Persistence The TDS1000 and TDS 2000 series oscilloscopes use dfm at a reduced intensity for persistence With Persistence set to Infinite record points accumulate until a control is changed XY Format Use the XY format to analyze phase differences such as those represented by Lissajous patterns The format plots the voltage on channel 1 against the voltage on channel 2 where channel 1 is the horizontal axis and channel 2 is the vertical axis The oscilloscope uses the untriggered Sample acquisition mode and displays data as dots The sampling rate is fixed at 1 MS s 88 TDS1000 2000 Series Digital Oscilloscope User Manual Reference NOTE The oscilloscope can capture a waveform in normal YT mode at any sampling rate You can view the same waveform in XY mode To do so stop the acquisition and change the display format to XY The controls operate as follows The channel 1 VOLTS DIV and VERTIC
102. ption match to probe attenuation 9 Probes 1X attenuation and bandwidth limit 9 attenuation 112 Attenuation switch 9 compensation 8 39 safety 6 specifications 165 167 Product support contact informa tion xiii Programmer manual ordering 170 Pulse signal Autoset function 82 Pulse width triggering 105 R Readouts FFT Math 119 general 28 Recall factory setup default 13 setups 12 97 waveforms 98 Rectangular window 122 Reference waveforms readout 30 saving and recalling 98 Resolution fine 113 RM2000 rackmount kit ordering 169 Roll mode See scan mode RS 232 port 131 cable part numbers 134 connecting a cable 135 connector pinout 142 setup 134 TDS1000 2000 Series Digital Oscilloscope User Manual 185 Index RS 232 protocol Break signals 142 compared to GPIB standard 179 conventions 141 I O errors 141 setup options 136 testing 137 troubleshooting 139 RUN STOP button 38 77 steps taken by the oscilloscope when pushed 14 S Sample mode 17 74 75 Sample rate maximum 75 Save setups 12 97 waveforms 98 SAVE RECALL button 38 97 Scaling waveforms basic concepts 18 Scan mode 78 92 Scanning waveform 92 101 Screen button xi Screen data printing 133 sending to an external device 131 SEC DIV control 36 91 SECAM 104 Security loop 4 Service 110 Service manual ordering 170 Service support contact informa tion xiii SET TO 50 b
103. r a grounded antistatic wrist strap to discharge the static voltage from your body while installing or removing a module from the oscilloscope Do not touch the oscilloscope module connector pins Do not use any devices capable of generating or holding a static charge in the work area where you install or remove the module Avoid handling the module in areas that have a floor or work surface covering capable of generating a static charge Make sure that you install the module cover after you remove the module TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module Removing an Extension Module To remove an extension module refer to the next illustration and follow the previous precautions Module release tab Remove extension module Install extension module Installing an Extension Module Make sure that you align the module tabs to the oscilloscope connector pins and press down firmly to seat the module TDS1000 2000 Series Digital Oscilloscope User Manual 129 TDS2CMA Communications Module Checking Module Installation To check that the module is correctly installed power on the oscilloscope The power on screen should list the TDS2CMA module and include the message Power up Tests Passed If the oscilloscope does not recognize the module at power on follow the steps in Troubleshooting Module Installation Troubleshooting Module Installation If the oscillosco
104. r below lt 90 relative humidity 40 C or below 106 F 122 F lt 60 relative humidity 41 C to 50 C Altitude Operating and Nonoperating 3 000 m 10 000 ft Random Vibration Operating 0 31 grams from 5 Hz to 500 Hz 10 minutes on each axis Nonoperating 2 46 gnus from 5 Hz to 500 Hz 10 minutes on each axis Mechanical Shock Operating 50 g 11 ms half sine Mechanical Size Height 151 4 mm 5 96 in Width 323 8 mm 12 75 in Depth 124 5 mm 4 90 in Weight approximate When packaged for domestic 3 6 kg 8 0 Ibs shipment 162 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications Oscilloscope EMC Certifications and Compliances European Meets the intent of Directive 89 336 EEC for Electromagnetic Compatibility Union Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EN 61326 EMC requirements for Class A electrical equipment for measure ment control and laboratory use IEC 61000 4 2 Electrostatic discharge immunity Performance criterion B IEC 61000 4 3 RF electromagnetic field immunity Performance criterion A IEC 61000 4 4 Electrical fast transient burst immunity Performance criterion B IEC 61000 4 5 Power line surge immunity Performance criterion B IEC 61000 4 6 Conducted RF immunity Performance criterion A 4 IEC 61000 4 11 Voltage dips and interruptions immunity Performance
105. r frequency readout W Eleven automatic measurements m Waveform averaging and peak detection TDS1000 2000 Series Digital Oscilloscope User Manual Getting Started m Dualtime base m Math Fast Fourier Transform FFT m Pulse Width trigger capability m Video trigger capability with line selectable triggering m External trigger W Setup and waveform storage m Variable persistence display m RS 232 GPIB and Centronics ports with the optional TDS2CMA Communications Extension Module W User interface in ten user selectable languages TDS1000 2000 Series Digital Oscilloscope User Manual 3 Getting Started Installation Power Cord Use only power cords designed for your oscilloscope Use a power source that delivers 90 to 264 VACpms 45 to 66 Hz If you have a 400 Hz power source it must deliver 90 to 132 VACRms 360 to 440 Hz Refer to page 171 for a list of available power cords Securing cable Power cable Security Loop Use the built in cable channels to secure both your oscilloscope and extension module to your location 4 TDS1000 2000 Series Digital Oscilloscope User Manual Getting Started Functional Check Perform this quick functional check to verify that your oscilloscope is operating correctly ON OFF 1 button SN PASSED O O O O OO PROBECOMP 2 oO O00 d AUTO SET Power on the oscilloscope Wait until the display shows that
106. r office hours please leave a voice mail message Outside North America contact a Tektronix sales office or distributor see the Tektronix web site for a list of offices TDS1000 2000 Series Digital Oscilloscope User Manual xiii Preface xiv TDS1000 2000 Series Digital Oscilloscope User Manual Hemp J Getting Started TDS1000 Series and TDS2000 Series Digital Storage Oscilloscopes are small lightweight benchtop packages that you can use to take ground referenced measurements In addition to the list of general features this chapter describes how to do the following tasks m Install your product W Perform a brief functional check W Perform a probe check and compensate probes m Match your probe attenuation factor W Use the self calibration routine NOTE You can select a language to display on the screen when you power on the oscilloscope At any time you can push the UTILITY button and push the Language option button to select a language TDS1000 2000 Series Digital Oscilloscope User Manual 1 Getting Started General Features The next table and bulleted list describe the general features Model TDS1002 TDS1012 TDS2002 TDS2012 TDS2014 TDS2022 TDS2024 m Context sensitive Help system m Color or monochrome LCD display m Selectable 20 MHz bandwidth limit m 2500 point record length for each channel m Autoset Menu W Probe Check Wizard m Cursors with readouts m Trigge
107. resulting waveform You can use this mode to reduce random noise TDS1000 2000 Series Digital Oscilloscope User Manual 17 Understanding Oscilloscope Functions Time Base The oscilloscope digitizes waveforms by acquiring the value of an input signal at discrete points The time base allows you to control how often the values are digitized To adjust the time base to a horizontal scale that suits your purpose use the SEC DIV knob Scaling and Positioning Waveforms You can change the display of waveforms by adjusting their scale and position When you change the scale the waveform display will increase or decrease in size When you change the position the waveform will move up down right or left The channel reference indicator located on the left of the graticule identifies each waveform on the display The indicator points to the ground level of the waveform record To view the display area and readouts refer to page 28 Vertical Scale and Position You can change the vertical position of waveforms by moving them up or down in the display To compare data you can align a waveform above another or you can align waveforms on top of each other You can change the vertical scale of a waveform The waveform display will contract or expand about the ground level For oscilloscope specific descriptions refer to page 34 in the Operating Basics chapter and page 112 in the Reference chapter 18 TDS1000 2000 Series Digit
108. rwise the oscilloscope triggers when a pulse continues longer than the time specified as the Pulse Width Less than The trigger point is the trailing edge Greater than also called time out trigger The oscilloscope triggers when a pulse continues longer than the time specified as the Pulse Width Selectable from 33 ns to 10 s 16 5 ns or 1 part per thousand whichever is larger t gt 330 ns 5 guardband 5 196 16 5 ns t lt 330 ns guardband 16 5 ns t lt 330 ns guardband 16 5 ns 165 ns t 330 ns guardband 16 5 ns 33 ns t lt 165 ns guardband 16 5 ns TDS1000 2000 Series Digital Oscilloscope User Manual 159 Appendix A Specifications Oscilloscope Specifications Cont Trigger Frequency Counter Readout Resolution 6 digits Accuracy typical x51 ppm including all frequency reference errors and 1 count errors Frequency Range AC coupled 10 Hz minimum to rated bandwidth Signal Source Pulse Width or Edge Trigger modes all available trigger sources The Frequency Counter measures trigger source at all times including when the oscilloscope acquisition is halted due to changes in the run status or acquisition of a single shot event has completed Pulse Width Trigger mode The oscilloscope counts pulses of significant magnitude inside the 250 ms measurement window that qualify as triggerable events such as narrow pulses in a PWM pulse train if set to mode and the width is set
109. s 9 pin female to 25 pin male 012 1241 00 modem 134 TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module Connecting an External Device When you connect the module to an external RS 232 device follow these guidelines Use the correct cable refer to the table on page 134 Use a cable that is no longer than 50 feet Power off the oscilloscope and the external device before you connect the cable between them Connect the oscilloscope only to a DCE device Check that the oscilloscope signal ground pin 5 is connected to the external device signal ground Connect the chassis ground of the oscilloscope to the chassis ground of the external device TDS1000 2000 Series Digital Oscilloscope User Manual 135 TDS2CMA Communications Module RS 232 Settings To set up the oscilloscope RS 232 interface follow these steps 1 Push UTILITY p Options RS 232 2 Push the option buttons to match the settings of your external device The next table lists the settings you can change NOTE The oscilloscope stores these settings until you change them even if you push the DEFAULT SETUP button Option Settings Comments Set to Sets the RS 232 interface to factory Defaults defaults Baud 9600 Flow hardflag ging EOL String LF Parity None Baud 300 600 1200 Sets the data transmission rate 2400 4800 9600 19200 Flow Control Hardflagging Soft Sets data flow control Soft
110. s Digital Oscilloscope User Manual Acquisition Acquisition Acquisition interval interval interval Trigger level o Indicates m j j trigger points Holdoff Holdoff Holdoff Triggers are not recognized during holdoff time To use Trigger Holdoff push the HORIZ MENU button and set the Trig Knob option to Holdoff The USER SELECT LED lights to indicate the alternative function Turn the knob to adjust the holdoff 109 Reference Utility Push the UTILITY button to display the Utility Menu The Utility Menu changes with the addition of a TDS2CMA extension module Refer to the next section for information on the extension module Options Settings Comments System Displays summaries of the oscilloscope Status settings Options Display Style Displays screen data as black on white or as white on black Printer Setup Displays the setup for the printer see page 131 RS232 Setup Displays the setup for the RS 232 port see page 134 GPIB Setup Displays the setup for the GPIB port see page 143 Do Self Cal Performs a self calibration Error Log Displays a list of any errors logged This list is useful when contacting a Tektronix Service Center for help Language English Selects the display language of the French operating system German Italian Spanish Portuguese Japanese Korean Simplified Chinese Traditional Chinese Available only on TDS1000 series oscilloscopes Available only with a
111. s until you change them even if you push the DEFAULT SETUP button Testing the GPIB Interface To test the oscilloscope GPIB interface you will need to refer to the documentation that came with your controller TDS1000 2000 Series Digital Oscilloscope User Manual 145 TDS2CMA Communications Module The following procedure verifies communication with the oscillo scope by acquiring a signal and returning a voltage measurement This procedure assumes that the oscilloscope is connected to the GPIB network the oscilloscope has been assigned a unique bus address and that the controller software is running To test the GPIB interface follow these steps 1 Connect the oscilloscope probe to the channel 1 input connector Attach the probe tip and ground lead to the PROBE COMP connectors The figure on the next page shows how to hook up the probe to the oscilloscope The PROBE COMP signal is a square wave with a frequency of 1 kHz and a peak voltage of 5 V PROBE COMP 146 TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module 2 In the controller software send the ID command to the oscilloscope The oscilloscope should send back its identification string which looks similar to the following ID TEK TDS 1002 CF 91 1CT FV V1 09 TDS2CMA CMV V1 04 3 Send the command FACtory to reset the oscilloscope to factory settings defaults NOTE For brief information on command entr
112. scilloscope You should become familiar with three functions that you may use often when operating your oscilloscope Autoset saving a setup and recalling a setup Using Autoset The Autoset function obtains a stable waveform display for you It automatically adjusts the vertical scale horizontal scale and trigger settings Autoset also displays several automatic measurements in the graticule area depending on the signal type Saving a Setup The oscilloscope saves the current setup if you wait five seconds after the last change before you power off the oscilloscope The oscilloscope recalls this setup the next time you apply power You can use the SAVE RECALL Menu to permanently save up to ten different setups Recalling a Setup The oscilloscope can recall the last setup before power off any of your saved setups or the default setup See page 175 TDS1000 2000 Series Digital Oscilloscope User Manual Understanding Oscilloscope Functions Default Setup The oscilloscope is set up for normal operation when it is shipped from the factory This is the default setup To recall this setup push the DEFAULT SETUP button To view the default settings refer to Appendix D Default Setup Triggering The trigger determines when the oscilloscope starts to acquire data and display a waveform When a trigger is set up properly the oscilloscope converts unstable displays or blank screens into meaningful waveforms f
113. scope to trigger when it does not detect a trigger within a certain amount of time based on the SEC DIV setting you can use this mode in many situations such as to monitor the level of a power supply output Use this mode to let the acquisition free run in the absence of a valid trigger this mode allows an untriggered scanning waveform at 100 ms div or slower time base settings Normal Updates displayed waveforms only when the oscilloscope detects a valid trigger condition the oscilloscope displays older waveforms until the oscilloscope replaces them with new ones Use this mode when you want to see only valid triggered waveforms when you use this mode the oscilloscope does not display a waveform until after the first trigger To perform a Single Sequence acquisition push the SINGLE SEQ button TDS1000 2000 Series Digital Oscilloscope User Manual 101 Reference Source Options Source option Numbered chan nels Ext Ext 5 AC Line Details Triggers on a channel whether or not the waveform is displayed Does not display the trigger signal the Ext option uses the signal connected to the EXT TRIG front panel BNC and allows a trigger level range of 1 6V to 1 6V Same as Ext option but attenuates the signal by a factor of five and allows a trigger level range of 8V to 8V this extends the trigger level range This selection uses a signal derived from the power line as the trigger source trigger coupling
114. se in the signal display the number of averages is selectable Averages 4 Select number of averages 16 64 128 Key Points If you probe a noisy square wave signal that contains intermittent narrow glitches the waveform displayed will vary depending on the acquisition mode you choose Mes Me Sample Peak Detect Average 74 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Sample Use Sample acquisition mode to acquire 2500 points and display them at the SEC DIV setting Sample mode is the default mode Sample acquisition intervals 2500 1 2 3 4 10 e Sample points Sample mode acquires a single sample point in each interval The maximum sample rate is 1 GS s for oscilloscope models with a bandwidth of 60 MHz or 100 MHz and 2 GS s for the 200 MHz models At 100 ns and faster settings this sample rate does not acquire 2500 points In this case a Digital Signal Processor interpolates points between the sampled points to make a full 2500 point waveform record TDS1000 2000 Series Digital Oscilloscope User Manual 75 76 Reference Peak Detect Use Peak Detect acquisition mode to detect glitches as narrow as 10 ns and to limit the possibility of aliasing This mode is effective when at the SEC DIV setting of 5 us div or slower Peak Detect acquisition intervals 1250 1 2 5 e Sample points displayed Peak Detect mode displays the highest and low
115. sors 126 Nyquist frequency 117 process 115 readouts 119 Window 120 FFT Window Flattop 122 Hanning 122 Rectangular 122 FFT Zoom 118 Fine resolution 112 Flattop window 122 FORCE TRIG button 37 Format 86 Frequency cursors FFT spectrum 126 Functional check 5 Fundamental frequency compo nent 119 G GPIB port 131 cable part numbers 144 connecting a cable 144 setup 143 GPIB protocol compared to RS 232 standard 179 network configurations and connection guidelines 148 setup options 144 testing 145 Graticule 24 86 Ground marker 29 probe terminal 6 terminals 39 Ground coupling 112 Ground lead for probe 6 H Hanning window 122 HELP SCROLL LED ix Help System ix Helpful messages 30 Holdoff 92 109 TDS1000 2000 Series Digital Oscilloscope User Manual 183 Index HOLDOFF control 36 access push HORIZ MENU button 109 HORIZ MENU button 36 Horizontal aliasing time domain 20 how to make large adjustment 35 menu 90 position 19 position marker 29 scale 19 status 111 Hyperlinks in help topics x I O errors RS 232 report 141 Index for help topics x Intensity 86 Inverted waveform readout 30 L Language how to change 1 Languages 110 Level 16 36 LEVEL control 36 Lissajous pattern XY format 88 Magnitude cursors FFT spectrum 126 Main time base 36 90 Manuals ordering 170 Math FFT 115 118 functions 93 menu 93 MATH MENU butt
116. ssories All accessories standard and optional are available by contacting your local Tektronix field office Standard Accessories wf gt P2200 1X 10X Passive Probes The P2200 passive probes have a 6 MHz bandwidth with a rating of 150 V CAT Il when the switch is in the 1X position and a 200 MHz bandwidth with a rating of 300 V CAT II when the switch is in the 10X position A probe instructions manual is included TDS1000 and TDS2000 Series Oscilloscope User Manual A single user manual is included Refer to the Optional Accessories for a complete list of available language manuals gt TDS2CMA Communications Extension Module The TDS2CMA Communications module plugs directly into the rear panel of any TDS1000 or TDS2000 Series oscilloscope This module provides full GPIB and RS 232 compatibility and a t Centronics port for printing screen data E 3 RM2000 Rackmount Kit The RM2000 Rackmount Kit lets you j install a TDS1000 or TDS2000 Series oscilloscope into an p eee U jndustry standard 19 inch rack The rackmount kit requires seven inches of vertical rack space You can turn the oscilloscope power on or off from the front of the rackmount kit The rackmount kit does not have slide out capability TDS1000 2000 Series Digital Oscilloscope User Manual 169 Appendix B Accessories 000 TTS OO700
117. th Neg Width None Definition Calculates the arithmetic mean voltage over the entire record Calculates the absolute difference between the maximum and minimum peaks of the entire waveform Calculates a true RMS measurement of the first complete cycle of the waveform Examines the entire 2500 point waveform record and displays the minimum value Examines the entire 2500 point waveform record and displays the maximum value Measures the time between 10 and 90 of the first rising edge of the waveform Measures the time between 90 and 10 of the first falling edge of the waveform Measures the time between the first rising edge and the next falling edge at the waveform 50 level Measures the time between the first falling edge and the next rising edge at the waveform 50 level Does not take any measurement TDS1000 2000 Series Digital Oscilloscope User Manual 95 Reference Print Push the PRINT button to send the screen data to a printer or computer The print function requires the optional TDS2CMA Communications Extension Module The module includes Centronics RS 232 and GPIB ports Refer to the TDS2CMA Communications Module chapter on page 127 for complete operating information Refer to Optional Accessories on page 169 for ordering information Probe Check 96 You can use the Probe Check Wizard to quickly verify that your probe is operating properly To use the Probe Check Wizard push the
118. the center graticule line and read the frequency at the top right of the display 126 TDS1000 2000 Series Digital Oscilloscope User Manual EE IESUS TDS2CMA Communications Module This chapter describes how to use the TDS2CMA Communications Extension Module optional with a TDS1000 or TDS2000 series oscilloscope The TDS2CMA module adds Centronics RS 232 and GPIB communication ports to the oscilloscope For ordering information refer to page 169 This chapter describes how to do the following tasks Install the extension module Set up and test the RS 232 interface Set up and test the GPIB interface Send screen data to an external device printer or computer Installing and Removing an Extension Module This section describes how to safely remove and install an extension module on your oscilloscope TDS1000 2000 Series Digital Oscilloscope User Manual 127 TDS2CMA Communications Module AN 128 CAUTION Electrostatic discharge ESD can damage components in the module and the oscilloscope To prevent ESD follow the next list of precautions when installing removing or handling an module After removing a module install the dummy module cover to protect the contact pins Always power down the oscilloscope before removing or installing the module Handle the module as little as possible Transport and store the module in a static protected bag or container Do not slide the module over any surface Wea
119. the Fall Time and Peak to Peak e automatic measurements Falling edge Undo Setup Causes the oscilloscope to recall the previous setup 82 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Video Signal When you use the Autoset function and the oscilloscope determines that the signal is a video signal the oscilloscope displays the following options Video signal options All Fields All Lines Line Number ws Odd Fields ws Even Fields Undo Setup Details Displays several fields and the oscilloscope triggers on any field Displays one complete line with parts of the previous and next line the oscilloscope triggers on any line Displays one complete line with parts of the previous and next line turn the USER SELECT knob to select a specific line number for the oscilloscope to use as a trigger Displays several fields and the oscilloscope triggers only on odd fields Displays several fields and the oscilloscope triggers only on even fields Causes the oscilloscope to recall the previous setup NOTE Video autoset sets the Display Type option to Dot Mode TDS1000 2000 Series Digital Oscilloscope User Manual 83 Reference Cursors Push the CURSOR button to display the measurement cursors and Cursor Menu Options Settings Comments Type Select and display the measurement cursors Voltage measures amplitude and Time measures time and frequency Source Choose the wav
120. the table on page 137 8 From your PC terminal program type ID then press the Return or Enter key to send the command The oscilloscope sends back its identification string which should look similar to the following ID TEK TDS 1002 CF 91 1CT FV V1 09 TDS2CMA CMV V1 04 If you do not get any response refer to the troubleshooting steps that start on page 139 9 Send the command FACtory to reset the oscilloscope to factory settings defaults 138 TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module NOTE For brief information on command entry refer to page 150 For complete command information refer to the programmer manual that came with your extension module 10 Send the command AUTOSet EXECute to have the oscilloscope automatically acquire the input signal 11 Send the command MEASUrement IMMed SOURCE CH1 to select measurements on channel 1 12 Send the command MEASUrement IMMed TYPe PK2 to set up the voltage measurement 13 Send the query MEASUrement IMMed VALue to request the measurement result The oscilloscope will respond with a result similar to 5 16E0 which is the voltage measurement of the PROBE COMP signal using the standard 10X probe This completes the RS 232 interface test RS 232 Troubleshooting If the oscilloscope and the external device computer or printer have trouble communicating follow these steps 1 Verify that the module is working Re
121. to a relatively small time Edge Trigger mode The oscilloscope counts all edges of sufficient magnitude and correct polarity Video Trigger mode The Frequency Counter does not operate 160 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications Oscilloscope Specifications Cont Measurements Cursors Voltage difference between cursors AV Time difference between cursors AT Reciprocal of AT in Hertz 1 AT Automatic Frequency Period Mean Pk Pk Cycle RMS Min Max Rise Measurements Time Fall Time Pos Width Neg Width Oscilloscope General Specifications Display Display Type 5 7 in 145 mm diagonal liquid crystal Display Resolution 320 horizontal by 240 vertical pixels Display Contrast Adjustable temperature compensated Backlight Intensity 65 cd m typical Probe Compensator Output Output Voltage typi 5 V into 1 MQ load cal Frequency typical 1 kHz Power Source Source Voltage 100 120 VACpus 10 from 45 Hz through 440 Hz CAT II 120 240 VACpys 10 from 45 Hz through 66 Hz CAT Il Power Consumption Less than 30 W Fuse 1A T rating 250 V TDS1000 2000 Series Digital Oscilloscope User Manual 161 Appendix A Specifications Oscilloscope General Specifications Cont Environmental Temperature Operating 32 F 122 F 0 C to 50 C Nonoperating 40 F 159 8 F 40 C to 71 C Cooling Method Convection Humidity 104 F o
122. ule See TDS2CMA module Compensation probe manual 8 Probe Check Wizard 7 PROBE COMP connector 39 signal path 111 Connectors CH 1 CH 2 CH 3 and CH 4 39 EXT TRIG 39 PROBE COMP 39 Contacting Tektronix xiii Context sensitive help topics ix Contrast 86 Conventions used in this manual xi Coupling trigger 15 100 103 vertical 112 113 Cursor menu 84 CURSOR button 38 84 CURSOR position knobs 34 Cursors adjusting 38 application example 48 basic concepts 25 measurements 48 measuring an FFT spectrum 126 time 25 using 84 voltage 25 D DC coupling 112 Default setup Edge trigger 176 Pulse trigger 177 recalling 97 Video trigger 176 DEFAULT SETUP button option and control settings 175 retained option settings 178 Description general 1 Display contrast 86 format 86 intensity 86 menu 86 persistence 86 readouts 28 style Invert 112 182 TDS1000 2000 Series Digital Oscilloscope User Manual Index type 86 DISPLAY button 38 86 Display style of waveforms 87 Do Self Cal option 10 Dots 86 Dual time base 36 90 E Edge trigger 100 Error Log 110 EXT TRIG connector 39 Extension module See TDS2CMA module External trigger connector 39 F Factory setup 175 recalling 97 Features overview 2 FFT aliasing 122 remedies 123 FFT spectrum applications 115 displaying 118 magnify 124 measuring magnitude and fre quency with cur
123. us with at least two thirds powered on W Assign a unique device address to each device on the network No two devices can share the same device address TDS1000 2000 Series Digital Oscilloscope User Manual 149 TDS2CMA Communications Module Command Entry When you enter oscilloscope commands over the RS 232 or GPIB bus follow these general rules 150 You can enter commands in upper or lower case You can abbreviate many oscilloscope commands These abbreviations are shown in uppercase letters For example the command ACQuire NUMAVg can be entered simply as ACQ NUMAYV or acq numav You can precede any command with white space characters White space characters include any combination of the ASCII control characters 00 through 09 and OB through 20 hexadecimal 0 through 9 and 11 through 32 decimal The oscilloscope ignores commands that consist of just a combination of white space characters and line feeds Refer to the TDS200 TDS1000 and TDS2000 Series Digital Oscilloscope Programmer Manual 071 1075 XX for more information TDS1000 2000 Series Digital Oscilloscope User Manual pem 1 Appendix A Specifications All specifications apply to the TDS1000 and TDS2000 series oscilloscopes P2200 probe specifications appear at the end of this chapter To verify that the oscilloscope meets specifications the oscilloscope must first meet the following conditions m The oscilloscope must have been o
124. use the full bandwidth of the oscilloscope be sure to set the switch to 10X TDS1000 2000 Series Digital Oscilloscope User Manual 9 Getting Started Self Calibration The self calibration routine lets you optimize the oscilloscope signal path for maximum measurement accuracy You can run the routine at any time but should always run the routine if the ambient tempera ture changes by 5 C or more To compensate the signal path disconnect any probes or cables from the front panel input connectors Then push the UTILITY button select the Do Self Cal option and follow the directions on the screen TDS1000 2000 Series Digital Oscilloscope User Manual SES RITU EET Understanding Oscilloscope Functions This chapter contains information on what you need to understand before you use an oscilloscope To use your oscilloscope effectively you need to learn about the following oscilloscope functions Setting up the oscilloscope Triggering Acquiring signals waveforms Scaling and positioning waveforms Measuring waveforms The figure below shows a block diagram of the various functions of the oscilloscope and their relationship to each other Each channel Ext AC Line Vertical Acquire data Waveform gain and mode and record Display position time base 2500 points Computer interface TDS2CMA TDS1000 2000 Series Digital Oscilloscope User Manual 11 Understanding Oscilloscope Functions Setting Up the O
125. ustralia New Zealand U S A Oscilloscope Safety Certifications and Compliances Certifications CAN CSA C22 2 No 1010 1 92 UL3111 1 First Edition CSA Certified CSA Certification includes the products and power cords appropriate Power Cords for use in the North America power network All other power cords supplied are approved for the country of use Pollution Degree 2 Do not operate in environments where conductive pollutants may be present Overvoltage Category Examples of Products in this Category Category T INE ee CAT IIl Distribution level mains fixed installation CAT II Local level mains appliances portable equipment CAT Signal levels in special equipment or parts of equipment telecommunications electronics Adjustment Factory Calibration Interval The recommended calibration interval is one year Oscilloscope General Certifications and Compliances Russian Federation This product was certified by the GOST ministry of Russia to be in compliance with all applicable EMC regulations Peoples Republic of This product has received the Chinese Metrology Certification CMC China 164 TDS1000 2000 Series Digital Oscilloscope User Manual Appendix A Specifications P2200 Probe Specifications Input Capacitance 14 5 pf 17 5 pf 80 pf 110 pf Rise time typical lt 2 2 ns 50 0 ns Electrical 10X position 1X position characteristics Bandwidth DC to 200 MHz DC to 6 MHz Attenuatio
126. utton 37 SET TO ZERO button 36 Setups basic concepts 12 saving and recalling 97 Side menu button xi Signal path compensation 111 Sine waves Autoset function 81 SINGLE SEQ button 77 steps taken by the oscilloscope when pushed 14 Single shot signal application example 56 Slope 16 Soft case ordering 171 Soft keys xi Source AC Line 102 Ext 102 Ext 5 102 trigger 14 100 104 105 Specifications oscilloscope 151 164 P2200 probe 165 167 Square wave Autoset function 82 Status miscellaneous 111 system 110 Sync pulse 104 T TDS2CMA module 127 GPIB setup 143 how to install and remove 129 ordering 169 printer setup 131 RS 232 setup 134 Technical support contact informa tion xiii Tektronix contacting xiii Time base 18 Main 36 90 readout 30 Window 36 90 Time cursors 25 84 186 TDS1000 2000 Series Digital Oscilloscope User Manual Index Time domain waveform 116 Transient waveforms 117 Transit case ordering 171 TRIG MENU button 37 TRIG VIEW button 37 Trigger coupling 15 100 103 definition 13 edge 100 external 104 frequency readout 30 101 106 holdoff 36 92 109 level 16 36 99 level marker 29 level readout 30 menu 99 modes 15 Auto 101 Normal 101 polarity 105 position 16 position marker 29 position readout 29 pretrigger information 103 slope 16 100 source 14 30 100 105 status 29 111 sync
127. utton is held down You can use this to see how the trigger settings affect the trigger signal such as trigger coupling TDS1000 2000 Series Digital Oscilloscope User Manual 37 Operating Basics Menu and Control Buttons SAVE RECALL MEASURE ACQUIRE SET RUN SINGLE STOP SEQ UTILITY All models SAVE RECALL Displays the Save Recall Menu for setups and waveforms MEASURE Displays the automated measurements menu ACQUIRE Displays the Acquire Menu DISPLAY Displays the Display Menu CURSOR Displays the Cursor Menu Vertical Position controls adjust cursor position while displaying the Cursor Menu and the cursors are activated Cursors remain displayed unless the Type option is set to Off after leaving the Cursor Menu but are not adjustable UTILITY Displays the Utility Menu HELP Displays the Help Menu DEFAULT SETUP Recalls the factory setup AUTOSET Automatically sets the oscilloscope controls to produce a usable display of the input signals SINGLE SEQ Acquires a single waveform and then stops RUN STOP Continuously acquires waveforms or stops the acquisition PRINT Starts print operations An extension module with a Centron ics RS 232 or GPIB port is required Refer to Optional Accessories on page 169 38 TDS1000 2000 Series Digital Oscilloscope User Manual Operating Basics Connectors CH 1 EXT TRIG PROBE COMP PATE sv tkHz DL A I l 2 channel models Sue CH 1
128. with appropriate vertical and horizontal scaling the oscilloscope displays Cycle RMS Multi cycle sine Frequency Period and Peak to Peak automatic measure ments c Sets the horizontal scale to display about one cycle of the waveform the oscilloscope displays Mean and Peak to Single cycle sine Peak automatic measurements An Converts the input time domain signal into its frequency components and displays the result as a graph of frequency FFT versus magnitude spectrum since this is a mathematical calculation refer to the Math FFT chapter on page 115 for more information Undo Setup Causes the oscilloscope to recall the previous setup TDS1000 2000 Series Digital Oscilloscope User Manual 81 Reference Square Wave or Pulse When you use the Autoset function and the oscilloscope determines that the signal is similar to a square wave or pulse the oscilloscope displays the following options Square wave or pulse options Details Displays several cycles with appropriate vertical and l horizontal scaling the oscilloscope displays Pk Pk Multi cycle square Mean Period and Frequency automatic measurements Sets the horizontal scale to display about one cycle of JIL the waveform the oscilloscope displays Min Max Mean Single cycle square and Positive Width automatic measurements a Displays the edge and the Rise Time and Peak to Peak automatic measurements Rising edge Displays the edge and
129. y refer to page 150 For complete command information refer to the programmer manual that came with your extension module 4 Send the command AUTOSet EXECute to have the oscilloscope automatically acquire the input signal 5 Send the command MEASUrement IMMed SOURCE CH1 to select measurements on channel 1 6 Send the command MEASUrement IMMed TYPe PK2 to set up the voltage measurement 7 Send the query MEASUrement IMMed VALue to request the measurement result The oscilloscope will respond with a result similar to 5 16E0 which is the voltage measurement of the PROBE COMP signal using the standard 10x probe This completes the GPIB interface test TDS1000 2000 Series Digital Oscilloscope User Manual 147 TDS2CMA Communications Module GPIB Network Conventions To achieve a high data transfer rate the physical distance between devices and the number of devices on the bus are limited When you create the GPIB network follow these guidelines m Connect the GPIB devices in a star linear or combination star linear network E CAUTION Do not use loop or parallel networks 148 TDS1000 2000 Series Digital Oscilloscope User Manual TDS2CMA Communications Module Amaximum separation of 13 2 feet 4 meters between any two devices and an average separation of 6 6 feet 2 meters over the entire bus A maximum total cable length of 66 feet 20 meters No more than 15 device loads connected to each b
130. you to see more or less pretrigger information TDS1000 2000 Series Digital Oscilloscope User Manual 103 Reference Video Trigger Options Video Source Polarity Sync Standard With Video highlighted triggering occurs on an NTSC PAL or SECAM standard video signal Trigger coupling is preset to AC Selects the input source as the trigger signal Ext and Ext 5 use the signal applied to the EXT TRIG connector as the source Normal Normal triggers on the negative edge of Inverted the sync pulse and Inverted triggers on the positive edge of the sync pulse All Lines Select appropriate video sync Line Number Odd Field Tum the USER SELECT knob to specify Even Field a line niumber when you select Line All Fields Number for the Sync option NTSC Select the video standard for sync and PAL SECAM line number count Available only on 4 channel oscilloscopes Key Points Sync Pulses When you choose Normal Polarity the trigger always occurs on negative going sync pulses If your video signal has positive going sync pulses use the Inverted Polarity selection 104 TDS1000 2000 Series Digital Oscilloscope User Manual Reference Pulse Width Trigger Use Pulse Width triggering to trigger on aberrant pulses Options Comments Pulse With Pulse highlighted triggering occurs on pulses that meet the trigger condition defined by the Source Whe and Set Pulse Width options Source Select the i

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