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User’s Guide Publication Number 54622-97036September 2002For Safety Information and Regulatory information,see the pages behind the Index.© Copyright

Contents-6

3-38Triggering the OscilloscopeTo use SPI triggeringSet up the number of bits in the serial data string and set values for those data bits1 Turn the E

3-39Triggering the OscilloscopeTo use SPI triggeringAssign source channels to the clock, data, and frame signals1Press the Signals softkey to access S

3-40Triggering the OscilloscopeTo use SPI triggering3 Press the slope softkey ( ) to select rising edge or falling edge for the selected Clock sourc

3-41Triggering the OscilloscopeTo use SPI triggering5Press the Frame by softkey to select a framing signal that the oscilloscope will use for determin

3-42Triggering the OscilloscopeTo use TV triggeringTo use TV triggeringTV triggering is used to capture the complicated waveforms of television (TV) e

3-43Triggering the OscilloscopeTo use TV triggering3 Press the sync polarity softkey to set the TV trigger to either positive ( ) or negative ( ) syn

3-44Triggering the OscilloscopeTo use TV triggering6 If you select a line mode when using standards NTSC, PAL, PAL-M, or SECAM, press the Line # softk

3-45Triggering the OscilloscopeTo use TV triggeringExample exercises The following are exercises to familiarize you with TV triggering.To trigger on a

3-46Triggering the OscilloscopeTo use TV triggeringTriggering on Line 71 Line Numbers per Field for Each TV Standard TV Standard Field 1 Field 2 Alt F

3-47Triggering the OscilloscopeTo use TV triggeringTo trigger on all TV line sync pulses To quickly find maximum video levels, you could trigger on al

1Getting Started

3-48Triggering the OscilloscopeTo use TV triggeringTo trigger on a specific field of the video signal To examine the components of a video signal, tri

3-49Triggering the OscilloscopeTo use TV triggeringTo trigger on all fields of the video signal To quickly and easily view transitions between fields,

3-50Triggering the OscilloscopeTo use TV triggeringTo trigger on odd or even fields To check the envelope of your video signals, or to measure worst c

3-51Triggering the OscilloscopeTo use TV triggeringIf a more detailed analysis is required, then only one color field should be selected to be the tri

3-52To use USB triggeringUSB trigger will trigger on a Start of Packet (SOP), End of Packet (EOP) signal, Reset Complete (RC), Enter Suspend (Suspend)

3-53Triggering the OscilloscopeTo use USB triggering3Press the D+ and D– softkeys to select the channel connected to the USB signal D+ and D– lines. T

3-54Triggering the OscilloscopeTo use USB triggeringThe Trigger Out connectorThe oscilloscope sends a pulse to the Trigger Out BNC connector on the re

4 MegaZoom Concepts and Oscilloscope Operation

4-2MegaZoom Concepts and Oscilloscope Operation This chapter gives an overview of some oscilloscope concepts that will help you make better measuremen

4-3MegaZoom Concepts MegaZoom technology combines the advantages of conventional deep-memory digital oscilloscopes with the responsiveness and update

1-2Getting Started When you use the oscilloscopes to help test and troubleshoot your systems, you may do the following: • Prepare the oscilloscope by

4-4MegaZoom Concepts and Oscilloscope OperationDeep MemoryDeep MemoryThe primary advantage of a deep-memory oscilloscope is sustained sample rate, all

4-5MegaZoom Concepts and Oscilloscope OperationOscilloscope ResponsivenessOscilloscope Responsiveness An important element of an oscilloscope is how r

4-6MegaZoom Concepts and Oscilloscope OperationDisplay Update RateDisplay Update RateIn analog oscilloscopes, the oscilloscope is blind while the elec

4-7MegaZoom Concepts and Oscilloscope OperationTo setup the Analog channelsTo setup the Analog channels1Press the 1 key in the Vertical section (Analo

4-8MegaZoom Concepts and Oscilloscope OperationTo setup the Analog channelsVertical sensitivity Turn the large knob above the channel key to set the

4-9MegaZoom Concepts and Oscilloscope OperationTo setup the Analog channels3Press the Imped (impedance) softkeyThe 54620-series oscilloscope analog ch

4-10MegaZoom Concepts and Oscilloscope OperationTo setup the Analog channels7Press the Probe softkey to display the channel probe menu.This menu allow

4-11MegaZoom Concepts and Oscilloscope OperationTo setup the Horizontal time baseTo setup the Horizontal time base1Press the Main/Delayed key in the H

4-12MegaZoom Concepts and Oscilloscope OperationTo setup the Horizontal time base4Press the Vernier softkey to turn on the time base vernier.The Verni

4-13MegaZoom Concepts and Oscilloscope OperationTo setup the Horizontal time base6 Turn the delay knob ( ) and notice that its value is displayed in t

1-3Getting StartedThe oscilloscope’s high-speed display can be used to isolate infrequently changing signals. You can then use the characteristics of

4-14MegaZoom Concepts and Oscilloscope OperationTo setup the Horizontal time baseDelayed modeDelayed sweep is an expanded version of main sweep. When

4-15MegaZoom Concepts and Oscilloscope OperationTo setup the Horizontal time baseTo change the sweep speed for the delayed sweep window, turn the swee

4-16MegaZoom Concepts and Oscilloscope OperationTo setup the Horizontal time baseRoll modeRoll mode causes the waveform to move slowly across the scre

4-17MegaZoom Concepts and Oscilloscope OperationAcquisition ModesAcquisition Modes Remember how when using your analog oscilloscope you had to constan

4-18MegaZoom Concepts and Oscilloscope OperationAcquisition ModesNormal Mode For the majority of use models and signals, Normal acquisition mode yield

4-19MegaZoom Concepts and Oscilloscope OperationAcquisition ModesAverage Mode Averaging lets you average multiple triggers together to reduce noise an

4-20MegaZoom Concepts and Oscilloscope OperationAcquisition ModesIf you cannot acquire multiple triggers, you can still reduce noise and increase reso

4-21MegaZoom Concepts and Oscilloscope OperationDisplay modesDisplay modes•Press the Display key to view the Display menu.Infinite PersistenceInfinite

4-22MegaZoom Concepts and Oscilloscope OperationDisplay modesVectors On/Off The 54620/40-series oscilloscopes have been designed from the ground up to

4-23MegaZoom Concepts and Oscilloscope OperationPan and ZoomPan and Zoom The ability to pan (move horizontally) and zoom (expand or compress horizonta

1-4Setting up the OscilloscopeTo prepare your oscilloscope for use, you need to do the following tasks. After yo u have completed them, you will b e

4-24MegaZoom Concepts and Oscilloscope OperationTo pan and zoom a waveformTo pan and zoom a waveform1Press the Run/Stop key to stop acquisitions. The

4-25Run/Stop/Single/Infinite Persistence OperationDuring an acquisition, the oscilloscope examines the input voltage at each input probe.• For analog

4-26MegaZoom Concepts and Oscilloscope OperationAcquiring DataAcquiring Data The oscilloscope operates like an analog oscilloscope, but it can do much

4-27MegaZoom Concepts and Oscilloscope OperationMemory Depth/Record LengthMemory Depth/Record LengthRun/Stop versus SingleWhen the oscilloscope is run

4-28MegaZoom Concepts and Oscilloscope OperationTo run and stop an acquisitionTo run and stop an acquisition • To begin an acquisition, press Run/Stop

4-29MegaZoom Concepts and Oscilloscope OperationTo capture a single eventTo capture a single eventTo capture a single event, you need some previous kn

4-30MegaZoom Concepts and Oscilloscope OperationTo use infinite persistenceTo use infinite persistenceWith infinite persistence, the oscilloscope upda

4-31MegaZoom Concepts and Oscilloscope OperationTo clear the waveform displayTo clear the waveform display•Press the Display key, then press the Clear

4-32Configuring the Mixed-Signal Oscilloscope This section describes how to configure the following items for the Mixed-Signal Oscilloscope, including

4-33MegaZoom Concepts and Oscilloscope OperationInterpreting the digital waveform displayInterpreting the digital waveform displayThe following figure

1-5Getting StartedTo inspect package contentsTo inspect package contents❏ Inspect the shipping container for damage.If your shipping container appears

4-34MegaZoom Concepts and Oscilloscope OperationTo display and rearrange the digital channelsTo display and rearrange the digital channels1Press the D

4-35MegaZoom Concepts and Oscilloscope OperationTo turn individual channels on and offTo turn individual channels on and offIndividual channels within

4-36MegaZoom Concepts and Oscilloscope OperationTo force all channels on or all channels offTo force all channels on or all channels off1Press the D15

4-37MegaZoom Concepts and Oscilloscope OperationTo change the logic threshold for digital channelsTo change the logic threshold for digital channels1P

4-38MegaZoom Concepts and Oscilloscope OperationUsing Digital Channels to Probe CircuitsUsing Digital Channels to Probe Circuits You may encounter pro

4-39MegaZoom Concepts and Oscilloscope OperationUsing Digital Channels to Probe CircuitsHigh-Frequency Probe Equivalent Circuit The impedance plots fo

4-40MegaZoom Concepts and Oscilloscope OperationUsing Digital Channels to Probe CircuitsProbe Grounding A probe ground is the low-impedance path for c

4-41MegaZoom Concepts and Oscilloscope OperationUsing Digital Channels to Probe CircuitsIn addition to the common mode voltage, longer ground returns

4-42Using Labels on the Mixed-Signal OscilloscopeThe Mixed-Signal Oscilloscopes allow you to define and assign labels to each input channel, or you c

4-43MegaZoom Concepts and Oscilloscope OperationTo turn the label display on or offTo turn the label display on or off1Press the Label key in the Digi

1-6Getting StartedTo inspect package contents• Agilent IntuiLink Data Capture (all except for 54621A or 21D)IntuiLink Data Capture is a standalone pro

4-44MegaZoom Concepts and Oscilloscope OperationTo assign a predefined label to a channelTo assign a predefined label to a channel1Press the Label key

4-45MegaZoom Concepts and Oscilloscope OperationTo define a new labelTo define a new label1Press the Label key.2Press the Channel softkey, then turn t

4-46MegaZoom Concepts and Oscilloscope OperationTo define a new labelLabel List ManagementWhen you press the Library softkey, you will see a list of t

4-47MegaZoom Concepts and Oscilloscope OperationTo reset the label library to the factory defaultTo reset the label library to the factory default1Pre

4-48Saving and Recalling Traces and SetupsYou can save your current setup and waveform trace to the floppy disk or to internal memory, then recall the

4-49MegaZoom Concepts and Oscilloscope OperationTo Autosave traces and setupsTo Autosave traces and setups1 Connect a signal to the oscilloscope and o

4-50MegaZoom Concepts and Oscilloscope OperationTo save traces and setups to internal memory or to overwrite an existing floppy disk fileTo save trace

4-51MegaZoom Concepts and Oscilloscope OperationTo save traces and setups to a new file on the floppy diskTo save traces and setups to a new file on t

4-52MegaZoom Concepts and Oscilloscope OperationTo recall traces and setupsTo recall traces and setups1Press the Save/Recall key to display the Save/R

4-53MegaZoom Concepts and Oscilloscope OperationSaving (printing) screen images to floppy diskSaving (printing) screen images to floppy disk1Press the

1-7Getting StartedTo inspect package contentsPackage contents for 54620/40-Series Oscilloscopesss110073C or 10074C ProbesPower cordAccessories pouch a

4-54MegaZoom Concepts and Oscilloscope OperationRecalling the factory default setupRecalling the factory default setup1Press the Save/Recall key to di

5Making Measurements

5-2Making MeasurementsBy now you are familiar with the Vertical/Analog, Horizontal, and Trigger groups of the front-panel keys. You should also know

5-3Capturing DataIn the oscilloscope, an 8-bit A/D converter converts the input waveform into an evenly-spaced series of voltage readings. These readi

5-4Making MeasurementsTo use delayed sweepTo use delayed sweepYou can use the delayed sweep window to locate and horizontally expand part of the main

5-5Making MeasurementsTo use delayed sweepDelayed sweep is an expanded version of main sweep. When Delayed mode is selected, the display divides in ha

5-6Making MeasurementsTo reduce the random noise on a signalTo reduce the random noise on a signalIf the signal you are applying to the oscilloscope i

5-7Making MeasurementsTo reduce the random noise on a signalLow-frequency reject (LF reject) adds a high-pass filter with the 3-dB point at 50 kHz. U

5-8Making MeasurementsTo reduce the random noise on a signal3 Use averaging to reduce noise on the displayed waveform.•Press the Acquire key, then pre

5-9Making MeasurementsTo reduce the random noise on a signalHigh-resolution mode (# Avgs=1)High-resolution mode is an oversampling technique used when

1-8Getting StartedTo inspect options and accessoriesTo inspect options and accessories❏ Verify that you received the options and accessories you order

5-10Making MeasurementsTo capture glitches or narrow pulses with peak detect and infinite persistenceTo capture glitches or narrow pulses with peak de

5-11Making MeasurementsTo capture glitches or narrow pulses with peak detect and infinite persistence3Press the Display key then press the ∞ Persist (

5-12Making MeasurementsTo use the Roll horizontal modeTo use the Roll horizontal mode •Press the Main/Delayed key, then press the Roll softkey.Roll mo

5-13Making MeasurementsTo use the XY horizontal modeTo use the XY horizontal mode The XY horizontal mode converts the oscilloscope from a volts-versus

5-14Making MeasurementsTo use the XY horizontal modeSignal centered on the display 4Press the Cursors key.5 Set the Y2 cursor to the top of the signal

5-15Making MeasurementsTo use the XY horizontal mode6 Move the Y1 and Y2 cursors to the intersection of the signal and the Y axis.Again, note the ∆Y v

5-16Making MeasurementsTo use the XY horizontal modeSignals are 90 out of phaseSignals are in phase

5-17Math Functions The Math menu allows you to display math functions on analog channels. You can:• subtract (–) or multiply (*) the signals acquired

5-18Making MeasurementsMath Scale and OffsetMath Scale and OffsetAny math function may be manually scaled by pressing the Settings softkey, and then a

5-19Making MeasurementsMultiplyMultiplyWhen you select 1*2, channel 1 and channel 2 voltage values are multiplied point by point, and the result is di

1-9Getting StartedTo inspect options and accessoriesTable 1-2Accessories availableModel Description01650-61607 16:16 logic cable and terminator (for u

5-20Making MeasurementsSubtractSubtractWhen you select 1 – 2, channel 2 voltage values are subtracted from channel 1 voltage values point by point, an

5-21Making MeasurementsDifferentiateDifferentiated/dt ( d i f f e r en t i a t e ) c al c u l a t e s t he d i s c r e te t i m e d e r i va t i

5-22Making MeasurementsDifferentiateThe figure below shows an example of differentiate.DifferentiateChannel 1d/dt waveform d/dt ScaleReturn to previou

5-23Making MeasurementsIntegrateIntegrate∫ dt (integrate) calculates the integral of the selected source. You can use integrate to calculate the ener

5-24Making MeasurementsIntegrateThe integrate calculation is relative to the source signal’s offset. The following examples illustrate the effects of

5-25Making MeasurementsFFT MeasurementFFT MeasurementFFT is used to compute the fast Fourier transform using analog input channels or math functions 1

5-26Making MeasurementsFFT MeasurementThe following figure illustrates aliasing. This is the spectrum of a 1 kHz square wave, which has many harmonic

5-27Making MeasurementsFFT MeasurementFFT Operation1Press the Math key, press the FFT softkey, then press the Settings softkey to display the FFT menu

5-28Making MeasurementsFFT Measurement2 Press the More FFT softkey to display additional FFT settings.Scale allows you to set your own vertical scale

5-29Making MeasurementsFFT Measurement4 To make other measurements, press the Quick Meas key and set the Source softkey to Math.You can make peak-to-p

iiThe Oscilloscopes at a Glance Choose from a variety of oscilloscopes for capturing long, non-repeating signalswith 200 MSa/s sample rate and 2 MByt

1-10Getting StartedTo inspect options and accessoriesTable 1-3. Power Cords Plug Type Cable Part Number Plug Type Cable Part NumberOpt 900 (U.K.) 812

5-30Making MeasurementsFFT MeasurementFFT Measurement Hints - ContinuedWhile the FFT spectrum is displayed, use the Math and Cursors keys to switch be

5-31Cursor MeasurementsYou can measure waveform data using cursors. Cursors are horizontal and vertical markers that indicate X-axis values (usually

5-32Making MeasurementsTo make cursor measurementsTo make cursor measurements The following steps guide you through the front-panel Cursors key. You

5-33Making MeasurementsTo make cursor measurements3Press the Source softkey to select the analog channel or math source on which the Y cursors will in

5-34Making MeasurementsTo make cursor measurementsX1 X2 Press this softkey to adjust the X1 and X2 cursors together by turning the Entry knob. The ∆

5-35Making MeasurementsTo make cursor measurementsCursors measure frequency of pulse ringingExpand the display with delayed sweep, then characterize t

5-36Making MeasurementsTo make cursor measurementsPut the X1 cursor on one side of a pulse and the X2 cursor on the other side of the pulse.Measuring

5-37Automatic MeasurementsThe following automatic measurements can be made in the Quick Meas menu.Time Measurements•Counter•Duty Cycle•Frequency•Perio

5-38Making MeasurementsMaking automatic measurementsMaking automatic measurementsQuick Meas makes automatic measurements on any channel source or any

5-39Making MeasurementsSetting measurement thresholdsSetting measurement thresholdsSetting measurement thresholds defines the vertical levels where me

1-11Getting StartedTo clean the oscilloscopeTo clean the oscilloscope1 Disconnect power from the instrument.CAUTION Do not use too much liquid in cl

5-40Making MeasurementsSetting measurement thresholds4Press the Lower softkey, then turn the Entry knob to set the lower measurement threshold value.I

5-41Making MeasurementsMaking time measurements automaticallyMaking time measurements automaticallyThe following figure shows time measurement points.

5-42Making MeasurementsMaking time measurements automaticallyMeasurement definitionsCounterThe Counter measurement counts trigger level crossings at t

5-43Making MeasurementsMaking time measurements automaticallyFall TimeThe fall time of a signal is the time difference between the crossing of the upp

5-44Making MeasurementsMaking time measurements automaticallyX at MinX at Min is the X axis value (usually time) at the first displayed occurrence of

5-45Making MeasurementsMaking Delay and Phase MeasurementsMaking Delay and Phase MeasurementsDelayDelay measures the time difference from the selected

5-46Making MeasurementsMaking Delay and Phase MeasurementsPhasePhase is the calculated phase shift from source 1 to source 2, expressed in degrees. Ne

5-47Making MeasurementsMaking voltage measurements automaticallyMaking voltage measurements automaticallyMeasurement units for each input channel can

5-48Making MeasurementsMaking voltage measurements automaticallyMeasurement definitionsAmplitudeThe Amplitude of a waveform is the difference between

5-49Making MeasurementsMaking voltage measurements automaticallyRMSRMS (dc) is the root-mean-square value of the waveform over one or more full period

1-12Getting StartedTo adjust the handleTo adjust the handle1 Grasp the handle pivot points on each side of the instrument and pull the pivot out until

5-50Making overshoot and preshoot measurementsMeasurement definitionsPreshootPreshoot is distortion that precedes a major edge transition expressed as

5-51Making MeasurementsMaking overshoot and preshoot measurementsOvershootOvershoot is distortion that follows a major edge transition expressed as a

5-52Making MeasurementsMaking overshoot and preshoot measurements

6Utilities

6-2UtilitiesThe Utility menu allows you to:• select other languages for viewing Quick Help• set up the oscilloscope printer interface• load and delete

6-3UtilitiesTo configure Quick Help languagesTo configure Quick Help languagesYou can choose to display Quick Help in any of 11 languages.1Press the U

6-4UtilitiesTo configure Quick Help languagesLoading an updated language file from floppy diskWhen updates occur, an updated language file can be down

6-5UtilitiesTo update your instrument to the latest application softwareTo update your instrument to the latest application softwareWhen updates to th

6-6UtilitiesTo configure a printerTo configure a printerUse the printer configuration menu to set up your printer interface and printer format type. Y

6-7UtilitiesTo configure a printerCSV lengthThe Length softkey sets the number of XY waveform pair values that will be output to the CSV (comma-separa

1-13Getting StartedTo power-on the oscilloscopeTo power-on the oscilloscope1 Connect the power cord to the rear of the oscilloscope, then to a suitabl

6-8UtilitiesTo use the floppy diskTo use the floppy diskThe Floppy menu allows you to load or delete files from the floppy disk.1Press the File: softk

6-9UtilitiesTo set up the I/O port to use a controllerTo set up the I/O port to use a controllerUse the I/O menu to make settings if you have a contro

6-10UtilitiesTo set up the I/O port to use a controllerRS-232 ConnectionsThe signals for the 9-pin RS-232 port on the oscilloscope is listed below.Pin

6-11UtilitiesTo set the clockTo set the clockThe Clock menu allows you to set the current date and time of day (24-hour format). This time/date stamp

6-12UtilitiesTo set up the screen saverTo set up the screen saverThe oscilloscope can be configured to turn on a display screen saver when the oscillo

6-13UtilitiesTo set up the screen saver3 Turn the Entry knob to select the number of minutes to wait before the selected screen saver activates.When y

6-14UtilitiesTo perform service functionsTo perform service functionsThe Service menu allows you to:• perform User Cal on the oscilloscope• view User

6-15UtilitiesTo perform service functionsUser Cal StatusPressing the User Cal Status softkey displays the following summary results of the previous Us

6-16UtilitiesTo set other optionsTo set other optionsThe options menu contains two additional softkeys to help configure the oscilloscope.Expand softk

7Performance Characteristics

1-14Getting StartedTo adjust the waveform intensityTo adjust the waveform intensityThe Intensity control is at the lower left corner of the front pane

7-2Performance CharacteristicsThis chapter lists the performance characteristics for the Agilent 54620-series and 54640-series oscilloscopes. • The 5

7-3Agilent 54620-series Performance Characteristics* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-mi

7-4Performance CharacteristicsAgilent 54620-series Performance CharacteristicsVertical System: Analog ChannelsAnalog channels 54621A/21D, 54622A/22D:

7-5Performance CharacteristicsAgilent 54620-series Performance CharacteristicsVertical System: Analog Channels (continued)ESD Tolerance ±2 kVNoise Pea

7-6Performance CharacteristicsAgilent 54620-series Performance CharacteristicsHorizontalRange 5 ns/div to 50 s/divResolution 25 psVernier 1-2-5 increm

7-7Performance CharacteristicsAgilent 54620-series Performance CharacteristicsTrigger SystemSources: 54621A/22A: Ch 1, 2, line, ext54621D/22D: Ch 1, 2

7-8Performance CharacteristicsAgilent 54620-series Performance CharacteristicsAnalog Channel Triggering Range (Internal) ±6 div from center screenSens

7-9Performance CharacteristicsAgilent 54620-series Performance CharacteristicsDisplay SystemDisplay 7-inch raster monochrome CRTThroughput of Analog C

7-10Performance CharacteristicsAgilent 54620-series Performance CharacteristicsFFTPoints Fixed at 2048 pointsSource of FFT Analog channels 1 or 2 (or

7-11Performance CharacteristicsAgilent 54620-series Performance CharacteristicsGeneral CharacteristicsPhysical:SizeWeight32.26 cm wide x 17.27 cm high

1-15Getting StartedTo connect the oscilloscope analog probesTo connect the oscilloscope analog probesThe analog input impedance of these oscilloscopes

7-12Performance CharacteristicsAgilent 54620-series Performance Characteristics

7-13Agilent 54640-series Performance Characteristics* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-m

7-14Performance CharacteristicsAgilent 54640-series Performance CharacteristicsVertical System: Analog ChannelsAnalog channels Ch1 and 2 simultaneous

7-15Performance CharacteristicsAgilent 54640-series Performance CharacteristicsVertical System: Analog Channels (continued)ESD Tolerance ±2 kVNoise Pe

7-16Performance CharacteristicsAgilent 54640-series Performance CharacteristicsHorizontalRange 1 ns/div to 50 s/divResolution 2.5 psVernier 1-2-5 incr

7-17Performance CharacteristicsAgilent 54640-series Performance CharacteristicsTrigger SystemSources: 54641A/42A: Ch 1, 2, line, ext54641D/42D: Ch 1,

7-18Performance CharacteristicsAgilent 54640-series Performance CharacteristicsAnalog Channel Triggering Range (Internal) ±6 divSensitivity* <10 mV

7-19Performance CharacteristicsAgilent 54640-series Performance CharacteristicsDisplay SystemDisplay 7-inch raster monochrome CRTThroughput of Analog

7-20Performance CharacteristicsAgilent 54640-series Performance CharacteristicsFFTPoints Fixed at 2048 pointsSource of FFT Analog channels 1 or 2, 1+2

7-21Performance CharacteristicsAgilent 54640-series Performance CharacteristicsGeneral CharacteristicsPhysical:SizeWeight32.26 cm wide x 17.27 cm high

1-16Getting StartedTo compensate your analog probeTo compensate your analog probeYou should compensate you analog probes to match their characteristic

7-22

IndexIndex-1Symbols(-)Width measurement 5-43(+)Width measurement 5-43Numerics1*2 math function 5-191-2 math function 5-20Aabout oscilloscope 6-15AC ch

IndexIndex-2EECL threshold 4-37edge triggering 3-12EEPROM data read, I2C trigger 3-26Entry knob 1-24, 2-2Epson printer 6-6erase display 4-31expand abo

IndexIndex-3Ppan and zoom 4-23, 4-24parallel printer port 6-6patternduration trigger 3-21pattern trigger 3-17SPI trigger 3-38pattern trigger 3-17peak

IndexIndex-4triggercoupling 3-6external 3-9HF Reject 3-6holdoff 3-7hysteresis 5-7mode 3-3mode/coupling 3-3noise reject 3-6slope 3-12source 3-12trigger

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014Manufacturer’s Name:Manufacturer’s Address:Agilent Technologies, Inc.Ga

54620-series Product RegulationsEMCIEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998CISPR 11:1990 / EN 55011:1991IEC 61000-4-2:1995+A1:1998 / EN 6100

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014Manufacturer’s Name:Manufacturer’s Address:Agilent Technologies, Inc.19

54641A Product RegulationsEMCIEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998CISPR 11:1990 / EN 55011:1991IEC 61000-4-2:1995+A1:1998 / EN 61000-4 -2

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014Manufacturer’s Name:Manufacturer’s Address:Agilent Technologies, Inc.19

1-17Getting StartedTo use the digital probes (mixed-signal oscilloscope only)To use the digital probes (mixed-signal oscilloscope only)1 If you feel i

54641D Product RegulationsEMCIEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998CISPR 11:1990 / EN 55011:1991IEC 61000-4-2:1995+A1:1998 / EN 61000-4 -2

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014Manufacturer’s Name:Manufacturer’s Address:Agilent Technologies, Inc.19

54642A Product RegulationsEMCIEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998CISPR 11:1990 / EN 55011:1991IEC 61000-4-2:1995+A1:1998 / EN 61000-4 -2

DECLARATION OF CONFORMITYAccording to ISO/IEC Guide 22 and CEN/CENELEC EN 45014Manufacturer’s Name:Manufacturer’s Address:Agilent Technologies, Inc.19

54642D Product RegulationsEMCIEC 61326-1:1997+A1:1998 / EN 61326-1:1997+A1:1998CISPR 11:1990 / EN 55011:1991IEC 61000-4-2:1995+A1:1998 / EN 61000-4-2:

Agilent Technologies Inc.P.O. Box 21971900 Garden of the Gods RoadColorado Springs, CO 80901-2197, U.S.A.Safety NoticesThis apparatus has been designe

Notices© Agilent Technologies, Inc. 2000-2002No part of this manual may be reproduced in any form or by any means (including electronic storage and re

1-18Getting StartedTo use the digital probes (mixed-signal oscilloscope only)3 Connect a grabber to one of the probe leads. Be sure to connect the gro

1-19Getting StartedTo use the digital probes (mixed-signal oscilloscope only)5 For high-speed signals, connect a ground lead to the probe lead, connec

iiiIn This BookThis manual will guide you in using the oscilloscopes. This manual is organized in the following chapters:Chapter 1 Getting Started—in

1-20Getting StartedTo use the digital probes (mixed-signal oscilloscope only)7 Repeat steps 3 through 6 until you have connected all points of interes

1-21Getting StartedTo connect a printerTo connect a printerThe oscilloscope connects to a parallel printer through the Parallel output connector on th

1-22Getting StartedTo verify basic oscilloscope operationTo verify basic oscilloscope operation1 Connect an oscilloscope probe to channel 1.2 Attach t

1-23Getting started using the oscilloscope interfaceWhen the oscilloscope is first turned on, a startup screen is displayed as shown below.This menu i

1-24Getting StartedTo verify basic oscilloscope operation•Press the Getting Started softkey to view the symbols used in the oscilloscope softkey menus

1-25Using Quick HelpThe oscilloscope has a Quick Help system that provides user help for each front-panel key and softkey on the oscilloscope. To view

1-26Getting StartedSelecting a language for Quick Help after you have been operating the oscilloscopeSelecting a language for Quick Help after you hav

1-27Getting StartedLoading an updated language file from floppy diskLoading an updated language file from floppy diskWhen updates occur, an updated la

1-28

2Front-Panel Overview

iv

2-2Front-Panel Overview Before you make measurements using the Agilent 54620-series and 54640-series Oscilloscopes, you must first set up the instrume

2-3Front-Panel OverviewImportant Oscilloscope ConsiderationsImportant Oscilloscope Considerations Using Single versus Run/Stop The oscilloscopes have

2-4Front-Panel OverviewImportant Oscilloscope ConsiderationsWhether the oscilloscope is stopped or running, you see more detail as you zoom in, and le

2-5Front-Panel OverviewImportant Oscilloscope ConsiderationsRealtime acquire mode In Realtime mode, the oscilloscope produces the waveform display fr

2-6Front-Panel OverviewImportant Oscilloscope ConsiderationsDelayed Sweep Delayed sweep is a simultaneous display of the waveform at two different sw

2-7Front-Panel Overview54620/40-series Oscilloscope Front Panels54620/40-series Oscilloscope Front Panels Figure 2-154621A, 54622A, 54641A, and 54642A

2-8Front-Panel Overview54620/40-series Oscilloscope Front PanelsFigure 2-254624A 4-Channel Oscilloscope Front PanelDisplayHorizontal controlsTrigger c

2-9Front-Panel Overview54620/40-series Oscilloscope Front PanelsFigure 2-354621D, 54622D, 54641D, and 54642D Mixed-Signal Oscilloscopes Front Panel Di

2-10Front-Panel OperationThis chapter provides a brief overview of interpreting information on the display and an introduction to operating the front-

2-11Front-Panel OverviewInterpreting the displayInterpreting the displayThe oscilloscope display contains channel acquisitions, setup information, mea

ContentsContents-11 Getting StartedSetting up the Oscilloscope 1-4To inspect package contents 1-5To inspect options and accessories 1-8To clean the os

2-12Front-Panel OverviewTo use analog channels to view a signalTo use analog channels to view a signal• To configure the oscilloscope quickly, press t

2-13Front-Panel OverviewTo use digital channels to view a signalTo use digital channels to view a signal• To configure the oscilloscope quickly, press

2-14Front-Panel OverviewTo display signals automatically using AutoscaleTo display signals automatically using Autoscale• To configure the instrument

2-15Front-Panel OverviewTo apply the default factory configurationTo apply the default factory configuration• To set the instrument to the factory-def

2-16Front-Panel OverviewTo adjust analog channel vertical scaling and positionTo adjust analog channel vertical scaling and positionThis exercise guid

2-17Front-Panel OverviewTo set the vertical expand reference for the analog signalTo set the vertical expand reference for the analog signalWhen chang

2-18Front-Panel OverviewTo display and rearrange the digital channelsTo display and rearrange the digital channels1Press the D15 Thru D8 key or D7 Thr

2-19Front-Panel OverviewTo operate the time base controlsTo operate the time base controlsThe following exercise guides you through the time base keys

2-20Front-Panel OverviewTo start and stop an acquisitionTo start and stop an acquisition• When the Run/Stop key is illuminated in green, the oscillosc

2-21Front-Panel OverviewTo use delayed sweepTo use delayed sweep Delayed sweep is an expanded version of main sweep. When Delayed mode is selected, th

ContentsContents-2To set analog channel probe attenuation factor 2-17To display and rearrange the digital channels 2-18To operate the time base contro

2-22Front-Panel OverviewTo make cursor measurementsTo make cursor measurements You can use the cursors to make custom voltage or time measurements on

2-23Front-Panel OverviewTo make automatic measurementsTo make automatic measurementsYou can use automatic measurements on any channel source or any ru

2-24Front-Panel OverviewTo modify the display gridTo modify the display grid1Press the Display key.2 Turn the Entry knob to change the intensity of th

3Triggering the Oscilloscope

3-2Triggering the OscilloscopeThe Agilent 54620/40-series Oscilloscopes provide a full set of features to help automate your measurement tasks, includ

3-3Selecting Trigger Modes and Conditions The trigger mode affects the way in which the oscilloscope searches for the trigger. The figure below shows

3-4Triggering the OscilloscopeTo select a trigger mode: Normal, Auto, Auto LevelTo select a trigger mode: Normal, Auto, Auto Level1Press the Mode/Coup

3-5Triggering the OscilloscopeTo select a trigger mode: Normal, Auto, Auto LevelNormal mode Use Normal trigger mode for low repetitive-rate signals or

3-6Triggering the OscilloscopeTo select trigger CouplingTo select trigger Coupling1Press the Mode/Coupling key.2Press the Coupling softkey, then selec

3-7Triggering the OscilloscopeTo set holdoffTo set holdoff 1Press the Mode/Coupling key.2 Turn the Entry knob to increase or decrease the trigger ho

ContentsContents-34 MegaZoom Concepts and Oscilloscope OperationMegaZoom Concepts 4-3Deep Memory 4-4Oscilloscope Responsiveness 4-5Display Update Rate

3-8Triggering the OscilloscopeTo set holdoffHoldoff Operating HintsHoldoff keeps a trigger from occurring until after a certain amount of time has pas

3-9Triggering the OscilloscopeExternal Trigger InputExternal Trigger InputExternal Trigger can be used as a source in several of the trigger types. On

3-10Triggering the OscilloscopeExternal Trigger Input2Press the External softkey to display the external trigger probe menu. Probe Attenuation Turn t

3-11Trigger TypesThe oscilloscope allows you to synchronize the display to the actions of the circuit under test by defining a trigger condition. You

3-12Triggering the OscilloscopeTo use Edge triggeringTo use Edge triggeringThe Edge trigger type identifies a trigger by looking for a specified slope

3-13Triggering the OscilloscopeTo use Edge triggeringAnalog source Press the analog channel source softkey to select an analog source. Adjust the tr

3-14Triggering the OscilloscopeTo use Pulse Width triggeringTo use Pulse Width triggering Pulse Width (glitch) triggering sets the oscilloscope to tri

3-15Triggering the OscilloscopeTo use Pulse Width triggering3 Press the pulse polarity softkey to select positive ( )or negative ( ) polarity for the

3-16Triggering the OscilloscopeTo use Pulse Width triggering5 Select the qualifier time set softkey (< or >), then rotate the Entry knob to set

3-17Triggering the OscilloscopeTo use Pattern triggeringTo use Pattern triggeringThe Pattern trigger identifies a trigger condition by looking for a s

ContentsContents-4Saving and Recalling Traces and Setups 4-48To Autosave traces and setups 4-49To save traces and setups to internal memory or to over

3-18Triggering the OscilloscopeTo use Pattern triggering3 For each channel you select, press one of the condition softkeys to set the condition for th

3-19Triggering the OscilloscopeTo use CAN triggeringTo use CAN triggeringController Area Network (CAN) trigger will trigger on CAN version 2.0A and 2.

3-20Triggering the OscilloscopeTo use CAN triggering2Press the Baud softkey to set the CAN signal baud rate to match your CAN bus signal.The CAN baud

3-21Triggering the OscilloscopeTo use Duration triggeringTo use Duration triggeringDuration trigger lets you define a pattern, then trigger on a speci

3-22Triggering the OscilloscopeTo use Duration triggering3 For each channel you select, press the logic level softkey to set the condition for that ch

3-23Triggering the OscilloscopeTo use Duration triggering5 Select a qualifier time set softkey (< or >), then rotate the Entry knob to set the d

3-24Triggering the OscilloscopeTo use I2C triggeringTo use I2C triggeringAn I2C (Inter-IC bus) trigger setup consists of connecting the oscilloscope t

3-25Triggering the OscilloscopeTo use I2C triggering3 Connect an oscilloscope channel to the SDA (serial data) line in the circuit under test, then se

3-26Triggering the OscilloscopeTo use I2C triggeringEEPROM Data Read: the trigger looks for EEPROM control byte value 1010xxx on the SDA line, followe

3-27Triggering the OscilloscopeTo use I2C triggering10-bit Write: the oscilloscope triggers on a 10-bit write frame on the 26th clock edge if all bit

ContentsContents-56 UtilitiesTo configure Quick Help languages 6-3To update your instrument to the latest application software 6-5To configure a print

3-28Triggering the OscilloscopeTo use I2C triggering6 If you have set the oscilloscope to trigger on a 7-bit address read or write frame condition or

3-29Triggering the OscilloscopeTo use LIN triggeringTo use LIN triggeringLIN (Local Interconnect Network) trigger setup consists of connecting the osc

3-30Triggering the OscilloscopeTo use LIN triggering3Press the Trigger: softkey to select the trigger condition.Sync (Sync Break) is the only trigger

3-31Triggering the OscilloscopeTo use Sequence triggeringTo use Sequence triggeringSequence trigger allows you to trigger the oscilloscope after findi

3-32Triggering the OscilloscopeTo use Sequence triggering•Press the More key in the Trigger section of the front panel, rotate the Entry knob until Se

3-33Triggering the OscilloscopeTo use Sequence triggeringDefine the Find: stage1Press the Stage softkey and select Find:.Find: is the first stage in t

3-34Triggering the OscilloscopeTo use Sequence triggering5 If you select an edge term, one channel must be set to a rising edge or a falling edge. Al

3-35Triggering the OscilloscopeTo use Sequence triggering5 If you select an edge term, one channel must be set to a rising edge or a falling edge. Al

3-36Triggering the OscilloscopeTo use Sequence triggering2Press the Reset: softkey and select a term to reset on.3Press the Term softkey and select th

3-37Triggering the OscilloscopeTo use SPI triggeringTo use SPI triggeringSerial Peripheral Interface (SPI) trigger setup consists of connecting the os