Agilent 33220A Service Guide - LMU

Chapter 1 SpecificationsAgilent 33220A Function / Arbitrary Waveform Generator1Trigger CharacteristicsFSKCarrier Waveforms:Sine, Square, Ramp,ArbInternal/External50% duty cycle square(2 mHz to 100 kHz)Source:Internal Modulation:External Modulation Input(for AM, FM, PM, PWM)Voltage Range:Input Resistance:Bandwidth:[6] 5 V full scale5 kΩ typicalDC to 20 kHzSweepWaveforms:Sine, Square, Ramp,ArbLinear or LogarithmicUp or Down1 ms to 500 sSingle, External orInternalFalling edge of Syncsignal (programmablefrequency)Type:Direction:Sweep Time:Trigger:MarkerBurst [7]Waveforms:Sine, Square, Ramp,Triangle, Pulse, Noise,ArbCounted (1 to 50,000cycles), Infinite, Gated-360 to 360 degrees1 µs to 500 sExternal TriggerSingle, External, orInternalType:Start/Stop Phase:Internal Period:Gate Source:Trigger Source:Trigger Input:Input Level:Slope:Pulse Width:Input Impedance:Latency:Jitter (RMS)Trigger Output:Level:Pulse Width:Output Impedance:Maximum Rate:TTL compatibleRising or falling,selectable 100 ns 10 kΩ, DC coupled 500 ns6 ns (3.5 ns for Pulse)TTL compatible into 1 kΩ 400 ns50 Ω, typical1 MHzProgramming Times (typical)Configuration elect UserArbUSBLANGPIB99 ms100 ms99 ms3 ms5 ms2 ms36 ms36 ms36 ms111 ms112 ms109 msArb Download Times (binary transfer)64 K points16 K points4 K pointsUSB101 ms26 ms8 msLAN250 ms62 ms20 msGPIB356 ms87 ms22 msDownload times do not include setup or output time.16

Chapter 1 SpecificationsAgilent 33220A Function / Arbitrary Waveform GeneratorGeneralPower Supply:Power Consumption:Operating Environment:Operating Temperature:Operating Humidity:Operating Altitude:Storage Temperature:State Storage Memory:Interface:Language:Dimensions (W x H x D):Bench Top:Rack Mount:Weight:Safety Designed to:EMC Tested to:Vibration and Shock:Acoustic Noise:Warm-up Time:Warranty:CAT II100 to 240 V @50/60 Hz (-5%, 10%)100 to 120 V @400 Hz ( 10%)50 VA maximumIEC 61010Pollution Degree 2Indoor Location0 C to 55 C5% to 80% RH,non-condensingUp to 3000 meters-30 C to 70 CPower off stateautomatically saved.Four user-configurablestored states.GPIB, USB, and LANstandardSCPI - 1993,IEEE-488.2261.1 mm by 103.8 mmby 303.2 mm212.8 mm by 88.3 mmby 272.3 mm3.4 kg (7.5 lbs)UL-1244, CSA 1010,EN61010MIL-461C, EN55011,EN50082-1MIL-T-28800, Type III,Class 530 dBa1 hour3 years standardNote: Specifications are subject to changewithout notice. For the latest specifications,go to the Agilent 33220A product page andfind the Product Datasheet.www.agilent.com/find/33220A4This ISM device complies with Canadian ICES-001.Cet appareil ISM est conforme à la norme NMB-001du Canada.N10149Footnotes:1Add 1/10th of output amplitude and offsetspecification per C for operation outsidethe range of 18 C to 28 C.2Autorange enabled.34DC offset set to 0 V.Spurious distortion at low amplitude is limited by -75 dBm typical.5Add 1 ppm / C (average) for operation outside the range 18 C to 28 C .6FSK uses trigger input (1 MHz maximum).Sine and square waveforms above 6 MHzare allowed only with an “infinite” burstcount.7171

1Chapter 1 SpecificationsAgilent 33220A Function / Arbitrary Waveform GeneratorProduct DimensionsAll dimensions areshown in millimeters.18

22Quick Start

Quick StartOne of the first things you will want to do with your function generator isto becom e acqu ain ted w ith th e front pan el. W e h ave w ritten th e exercisesin this chapter to prepare the instrument for use and help you getfamiliar with some of its front-panel operations. This chapter is dividedinto the following sections:2 To Prepare the Function Generator for Use, on page 21 To Adjust the Carrying Handle, on page 22 To Set the Output Frequency, on page 23 To Set the Output Amplitude, on page 24 To Set a DC Offset Voltage, on page 26 To Set the High-Level and Low-Level Values, on page 21 To Select “DC Volts”, on page 22 To Set the Duty Cycle of a Square Wave, on page 29 To Configure a Pulse Waveform, on page 30 To View a Waveform Graph, on page 31 To Output a Stored Arbitrary Waveform, on page 32 To Use the Built-In Help System, on page 33 To Rack Mount the Function Generator , on page 3520

Chapter 2 Quick StartTo Prepare the Function Generator for UseTo Prepare the Function Generator for Use1 Check the list of supplied items.2Verify that you have received the following items with your instrument.If anything is missing, please contact your nearest Agilent Sales Office.One power cord.One User’s Guide.4This Service Guide.One folded Quick Start Tutorial.One folded Quick Reference Guide.Certificate of Calibration.Connectivity software on CD-ROM.PowerSwitch2 Connect the power cord and turn on the function generator.The instrument runs a short power-on self test, which takes a fewseconds. When the instrument is ready for use it displays a messageabout how to obtain help, along with the current GPIB address. Thefunction generator powers up in the sine wave function at 1 kHz with anamplitude of 100 mV peak-to-peak (into a 50Ω termination). A t p ow er-on ,th e O u tp ut con nector is disabled. To enable the Output con n ector, p ressth ek ey.If the function generator does not turn on, verify that the power cord isfirm ly con n ected to th e p ow er receptacle o n t he rear pa nel (the power-li nevoltage is automatically sensed at power-on). You should also make sureth at the fu nctio n generator is con nected to a po wer source t hat is energized .Then, verify that the function generator is turned on.If the power-on self test fails, “Self-Test Failed” is displayed along with anerror code. See Chapter 6 for information on self-test error codes, andfor instructions on returning the function generator to A gilent for service.21

Chapter 2 Quick StartTo Adjust the Carrying HandleTo Adjust the Carrying Handle2To adjust the position, grasp the handle by the sides and pull outward.Then, rotate the handle to the desired position.RetractedCarryingPositionExtended22

Chapter 2 Quick StartTo Set the Output FrequencyTo Set the Output FrequencyAt power-on, the function generator outputs a sine wave at 1 kHz withan amplitude of 100 mV peak-to-peak (into a 50Ω termination).The following steps show you how to change the frequency to 1.2 MHz.241 Press the “Freq” softkey.The displayed frequency is either the power-on value or the frequencypreviously selected. When you change functions, the same frequency isused if the present value is valid for the new function. To set thewaveform period instead, press the Freq softkey again to toggle to thePeriod softkey (the current selection is highlighted).2 Enter the magnitude of the desired frequency.Using the numeric keypad, enter the value “1.2”.3 Select the desired units.Press the softkey that corresponds to the desired units. When you selectthe units, the function generator outputs a waveform with the displayedfrequency (if the output is enabled). For this example, press MHz.Note: You ca n a lso en ter th e d esired v alu e u sin g th e kn ob a n d cu rsorkeys.23

Chapter 2 Quick StartTo Set the Output AmplitudeTo Set the Output Amplitude2At power-on, the function generator outputs a sine wave with anamplitude of 100 mV peak-to-peak (into a 50Ω termination).The following steps show you how to change the amplitude to 50 mVrms.1 Press the “Ampl” softkey.The displayed amplitude is either the power-on value or the amplitudepreviously selected. When you change functions, the same amplitude isused if the presen t value is valid for the new fun ction. T o set the am plitu deusing a high level and low level, press the Ampl softkey again to toggle tothe HiLevel and LoLevel softkeys (the current selection is highlighted).2 Enter the magnitude of the desired amplitude.Using the numeric keypad, enter the value “50”.3 Select the desired units.Press the softkey that corresponds to the desired units. When you selectth e u n its, th e fun ction gen erator ou tpu ts th e w aveform w ith th e displayedamplitude (if the output is enabled). For this example, press mVRMS.Note: You ca n a lso en ter th e d esired v alu e u sin g th e kn ob a n d cu rsorkeys.24

Chapter 2 Quick StartTo Set the Output AmplitudeYou can easily convert the displayed amplitude from one unit to another.For example, the following steps show you how to convert the amplitudefrom Vrms to Vpp.24 Enter the numeric entry mode.Press thekey to enter the numeric entry mode.45 Select the new units.Press the softkey that corresponds to the desired units. The displayedvalue is converted to the new units. For this example, press the Vppsoftkey to convert 50 mVrms to its equivalent in volts peak-to-peak.To change the displayed amplitude by decades, press the right-cursorkey to move the cursor to the units on the right side of the display.Then, rotate the knob to increase or decrease the displayed amplitudeby decades.25

Chapter 2 Quick StartTo Set a DC Offset VoltageTo Set a DC Offset Voltage2At power-on, the function generator outputs a sine wave with a dc offsetof 0 volts (into a 50Ω termination). The following steps show you how tochange the offset to –1.5 mVdc.1 Press the “Offset” softkey.The displayed offset voltage is either the power-on value or the offsetpreviously selected. When you change functions, the same offset is usedif the present value is valid for the new function.2 Enter the magnitude of the desired offset.Using the numeric keypad, enter the value “–1.5”.3 Select the desired units.Press the softkey that corresponds to the desired units. When you selectth e u n its, th e fun ction gen erator ou tpu ts th e w aveform w ith th e displayedoffset (if the output is enabled). For this example, press mVDC.Note: You ca n a lso en ter th e d esired v alu e u sin g th e kn ob a n d cu rsorkeys.26

Chapter 2 Quick StartTo Set the High-Level and Low-Level ValuesTo Set the High-Level and Low-Level ValuesYou can specify a signal by setting its amplitude and dc offset values, asdescribed previously. Another way to set the limits of a signal is tospecify its high-level (maximum) and low-level (minimum) values. Thisis typically convenient for digital applications. In the following example,let's set the high-level to 1.0 V and the low-level to 0.0 V.41 Press the "Ampl" softkey to select "Ampl".2 Press the softkey again to toggle to "HiLevel".Note that both the Ampl and Offset softkeys toggle together, to HiLeveland LoLevel, respectively.3 Set the "HiLevel" value.Using the numeric keypad or the knob, select a value of "1.0 V". (If youare using the keypad, you will need to select the unit, "V", to enter thevalue.)4 Press the "LoLevel" softkey and set the value.Again, use the numeric keypad or the knob to enter a value of "0.0 V".Note that these settings (high-level "1.0 V" and low-level "0.0 V") areequivalent to setting an amplitude of "1.0 Vpp" and an offset of "500mVdc".272

Chapter 2 Quick StartTo Select “DC Volts”To Select “DC Volts”2You can select the "DC Volts" feature from the “Utility” menu, and thenset a constant dc voltage as an "Offset" value. Let's set "DC Volts" 1.0Vdc.1 Pressand then select the DC On softkey.The Offset value becomes selected.2 Enter the desired voltage level as an "Offset".Enter 1.0 Vdc with the numeric keypad or knob.You can enter any dc voltage from -5 Vdc to 5 Vdc.28

Chapter 2 Quick StartTo Set the Duty Cycle of a Square WaveTo Set the Duty Cycle of a Square WaveAt power-on, the duty cycle for square waves is 50%. You can adjust theduty cycle from 20% to 80% for output frequencies up to 10 MHz. Thefollowing steps show you how to change the duty cycle to 30%.1 Select the square wave function.4Press thekey and then set the desired output frequency to anyvalue up to 10 MHz.2 Press the “Duty Cycle” softkey.The displayed duty cycle is either the power-on value or the percentagepreviously selected. The duty cycle represents the amount of time percycle that the square wave is at a high level (note the icon on the rightside of the display).3 Enter the desired duty cycle.Using the numeric keypad or the knob, select a duty cycle value of “30”.The function generator adjusts the duty cycle immediately and outputs asquare wave with the specified value (if the output is enabled).292

Chapter 2 Quick StartTo Configure a Pulse WaveformTo Configure a Pulse Waveform2You can configure the function generator to output a pulse waveformwith variable pulse width and edge time. The following steps show youhow to configure a 500 ms pulse waveform with a pulse width of 10 msand edge times of 50 ns.1 Select the pulse function.Press thekey to select the pulse function and output a pulsewaveform with the default parameters.2 Set the pulse period.Press the Period softkey and then set the pulse period to 500 ms.3 Set the pulse width.Press the Width softkey and then set the pulse width to 10 ms. The pulsewidth represents the time from the 50% threshold of the rising edge tothe 50% threshold of the next falling edge (note the display icon).4 Set the edge time for both edges.Press the Edge Time softkey and then set the edge time for both therising and falling edges to 50 ns. The edge time represents the time fromth e 10% th resh old to th e 90% thresh old of each edge (n ote th e display icon ).30

Chapter 2 Quick StartTo View a Waveform GraphTo View a Waveform GraphIn the Graph Mode, you can view a graphical representation of thecurrent waveform parameters. The softkeys are listed in the same orderas in the normal display mode, and they perform the same functions.However, only one label (for example, Freq or Period) is displayed foreach softkey at one time.41 Enable the Graph Mode.P ress th ekey to enable th e G rap h M ode. T h e n am e of the currentlyselected param eter, shown in the upper-left corner of the display, and theparameter’s numeric value field are both highlighted.2 Select the desired parameter.To select a specific parameter, note the softkey labels at the bottom ofthe display. F or exam ple, to select period, press the Period softkey. As in the normal display mode, you can edit numbers using either thenumeric keypad or the knob and cursor keys. P aram eters w h ich n orm ally toggle w h en you p ress a key a second tim ealso toggle in the Graph Mode. However, you can see only one labelfor each softkey at one time (for example, Freq or Period). To exit the Graph Mode, pressThekey also serves as aafter remote interface operations.again.key to restore front-panel control312

Chapter 2 Quick StartTo Output a Stored Arbitrary WaveformTo Output a Stored Arbitrary Waveform2T h ere are five bu ilt-in arbitrary w aveform s stored in non -volatile m em ory.T h e follow in g step s sh ow you h ow to ou tpu t t he b uilt-i n “exp o n e ntial fall”w a veform from the front panel.For information on creating a custom arbitrary waveform, refer to“To Create and Store an Arbitrary Waveform” in the User’s Guide.1 Select the arbitrary waveform function.When you press thekey to select the arbitrary waveform function,a tem p orary m essage is displayed ind icatin g w h ich w aveform is cu rren tlyselected (the default is “exponential rise”).2 Select the active waveform.Press the Select Wform softkey and then press the Built-In softkey toselect from the five built-in waveforms. Then press the Exp Fall softkey.The waveform is output using the present settings for frequency,amplitude, and offset unless you change them.The selected waveform is now assigned to thekey. Whenever youpress this key, the selected arbitrary waveform is output. To quicklydetermine which arbitrary waveform is currently selected, press.32

Chapter 2 Quick StartTo Use the Built-In Help SystemTo Use the Built-In Help SystemThe built-in help system is designed to provide context-sensitiveassistance on any front-panel key or menu softkey. A list of help topicsis also available to assist you with several front-panel operations.241 View the help information for a function key.P ress an d h old do w n t hekey. If t he message co ntai ns moreinformation than will fit on the display, press the softkey or turn theknob clockwise to view the remaining information.Press DONE to exit Help.2 View the help information for a menu softkey.Press and hold down the Freq softkey. If the m essa ge con ta in s moreinformation than will fit on the display, press the softkey or rotate theknob clockwise to view the remaining information.Press DONE to exit Help.33

Chapter 2 Quick StartTo Use the Built-In Help System3 View the list of help topics.2Press thekey to view the list of available help topics. To scrollthrough the list, press the or softkey or rotate the knob. Select thethird topic “Get HELP on any key” and then press SELECT.Press DONE to exit Help.4 View the help information for displayed messages.Whenever a limit is exceeded or any other invalid configuration is found,the function generator will display a message. For example, if you entera value that exceeds the frequency limit for the selected function,a message will be displayed. The built-in help system provides additionalinformation on the most recent message to be displayed.P ress th ekey, select th e first topic “V iew th e last m essa ge d isp la yed”,and then press SELECT.Press DONE to exit Help.Local Language Help: The built-in help system in available in multiplelanguages. All messages, context-sensitive help, and help topics appearin the selected language. The menu softkey labels and status linemessages are not translated.To select the local language, press thekey, press the Systemsoftkey, and then press the Help In softkey. Select the desired language.34

Chapter 2 Quick StartTo Rack Mount the Function GeneratorTo Rack Mount the Function GeneratorYou can mount the Agilent 33220A in a standard 19-inch rack cabinetusing one of two optional kits available. Instructions and mountinghardware are included with each rack-mounting kit. Any AgilentSystem II instrument of the same size can be rack-mounted beside theAgilent 33220A.24Note: R em ove the carryin g h an dle, and the front an d rear ru bber bu m p ers,b

Backdating Chapter 8 describes the differences between this manual and older issues of this manual. Schematics Chapter 9 contains the function generator’s schematics and component locator drawings. If you have questions relating to the operation of the Agilent 33220A, call 1-800-452-4844 in the United