Teledyne T3AFG Series User Manual
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Teledyne T3AFG Series User Manual

Function/arbitrary waveform generator
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T3AFG200-350-500 Series Function/Arbitrary
Waveform Generator

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  • Page 1 User Manual T3AFG200-350-500 Series Function/Arbitrary Waveform Generator...
  • Page 2 Declaration Copyright © Teledyne Test Tools. All rights reserved. Without permission, contents in this manual are not allowed to be copied, extracted or translated.
  • Page 3 General Safety Summary Carefully read the following safety precautions to avoid any personal injuries or damages to the instrument and any product connected to it. To avoid potential hazards, please use the instrument as specified. Only qualified technical personnel should service this instrument. Avoid fire or open flame.
  • Page 4 This electronic product is subject to disposal and recycling regulations that vary by country and region. Many countries prohibit the disposal of waste electronic equipment in standard waste receptacles. For more information about proper disposal and recycling of your Teledyne LeCroy product, visit teledynelecroy.com/recycle. Terms and Symbols The following symbols appear on the product or in its documentation: WARNING High Voltage.
  • Page 5 Introduction to the T3AFG200-350-500 The manual covers the following 3 models of the T3AFG Series Function/Arbitrary Waveform Generators: T3AFG200, T3AFG350 and T3AFG500. The T3AFG is a series of dual-channel function/arbitrary waveform generators with specifications of up to 500MHz maximum bandwidth, 2.4GSa/s sampling rate and 16- bit vertical resolution.
  • Page 6 • Sweep and Burst functions. • Harmonic waveforms generating function • Waveforms combining function • Channel Coupling, Copy and Tracking function • High precision Frequency Counter • 196 kinds of built-in arbitrary waveforms • Standard interfaces: USB Host, USB Device (USBTMC), LAN (VXI-11, Socket, Telnet).

  • Page 7: Table Of Contents

    Contents General Safety Summary ..................II Introduction of T3AFG200-350-500 ..............IV Quick Start ....................1 Handle Adjustment ................ 2 The Front/Rear Panel ..............3 To Select a Waveform..............8 To Set Modulation/Sweep/Burst............13 To Turn On/Off Output ..............15 To Use Numeric Input ..............15 To Use Common Function Keys ..........16 Front Panel Operations ................17 2.1.1 To Set Sine Waveform ..............18...
  • Page 8 To Set Sweep Function..............86 To Set Burst Function ..............91 To Store and Recall ..............97 2.6.1 Storage System ..............98 2.6.2 File Type ................100 2.6.3 File Operation ..............101 2.7 To Set Utility Function..............105 2.7.1 System Settings..............107 2.7.2 Test Cal................115 2.7.3 Frequency Counter ............120 2.7.4 Output ................123 2.7.5 CH Copy/Coupling .............126 2.7.6 Remote Interface ...............131...
  • Page 9 4.1 General Inspection ..............179 4.2 Troubleshooting................180 5 Service and Support ................. 181 Maintenance summary ..............181 Contact Teledyne Test Tools ............182 6 Appendix ....................183 Appendix A: Accessories..............183 Appendix B: Daily Maintenance and Cleaning ........184 VIII...

  • Page 10: Quick Start

    1 Quick Start This chapter covers the following topics: • Handle Adjustment • The Front/Rear Panel • To Select a Waveform • To Set Modulation/Sweep/Burst • To Turn On/Off Output • To Use Numeric Input • To Use Common Function Keys...

  • Page 11: Handle Adjustment

    Handle Adjustment To adjust the handle position of T3AFG, please grip the handle by the sides and pull it outward. Then, make the handle rotate to the desired position. Figure 1-1 Viewing Position and Carrying Position...

  • Page 12: The Front/Rear Panel

    The Front/Rear Panel This chapter will provide a brief introduction and description for the operation and functions of the front/rear panel. Front Panel The T3AFG has a clear and simple front panel which includes 4.3 inch touch screen, menu softkeys, numeric keyboard, knob, function keys, arrow keys, and channel control area, etc.
  • Page 13 Rear Panel The rear panel provides multiple interfaces, including Counter, 10MHz In/Out, Aux In/Out, LAN, USB Device, Earth Terminal and AC Power Supply Input. 10 MHz Clock Input Earth Terminal Counter In/Out AC Power 10 MHz Clock Supply Input Interface Output Device Figure 1-3 Rear Panel of T3AFG200-350-500...
  • Page 14 Touch Screen Display The T3AFG can only display parameters and waveform of one channel at a time. The picture below shows the interface of Channel 1 with an AM modulation applied to a sine wave. The information displayed may vary depending on the function selected.
  • Page 15 3. Basic Waveform Parameters Area Shows the current waveform‘s parameters of each channel. Press Parameter and select the corresponding softkey to highlight the parameter to configure. Then use number keys or knob to change the parameter value. 4. Channel Parameters Area Displays the load and output settings of the currently selected channel.
  • Page 16 This mark indicates current mode is Independent. 7. Clock Source Icon The display will show different prompt messages based on the current clock source. This mark indicates the current clock source is from the internal TCXO. This mark indicates the current clock source is from an external clock source.

  • Page 17: To Select A Waveform

    To Select a Waveform Press Waveforms to enter the menu as Figure 1-5 shows. The example below will help familiarize with the waveform selection settings. Figure 1-5 Waveform Selections 1. Press Waveforms key and then press Sine softkey. The T3AFG can generate sine waveforms with frequencies from 1μHz to 500MHz.
  • Page 18 Figure 1-7 Square Display Interface 3. Press Waveforms key and then press Ramp softkey. The generator can generate ramp waveforms with frequencies from 1μHz to 5MHz and variable symmetry. By setting Frequency/Period, Amplitude/High level, Offset/Low level, Phase and Symmetry, a ramp waveform with different parameters can be generated.
  • Page 19 a pulse waveform with different parameters can be generated. Figure 1-9 Pulse Display Interface 5. Press Waveforms key and then press Noise softkey. The generator can generate noise with bandwidth from 80MHz to 500MHz. By setting Stdev and Mean, noise with different parameters can be generated. Figure 1-10 Noise Display Interface 6.
  • Page 20 Figure 1-11 DC Display Interface 7. Press Waveforms key and then press Page 1/2, last press the Arb softkey. The generator can generate repeatable arbitrary waveforms with frequencies from 1 μHz to 50 MHz in DDS mode or output every data point with an output sample rate from 1 μSa/s to 300 MSa/s in TrueArb mode.
  • Page 21 from 250 Symb/s to 37.5 MSymb/s. By setting Center Frequency, Fsymb/Fs, Amplitude and Trigger Source, an I/Q signal pair with different parameters can be generated. Figure 1-13 I/Q Signal Display Interface Press Waveforms →Page 1/2→PRBS, and channel status bar displays "PRBS". The generator can generate a Pseudo-Random Bit Sequence (PRBS) with bit rates ranging from 1 μbps to 300 Mbps.

  • Page 22: To Set Modulation/Sweep/Burst

    1.4 To Set Modulation/Sweep/Burst As shown in Figure 1-13, there are three keys on the front panel which are used for modulation, sweep and burst settings. The instructions below will help to explain these functions. Figure 1-13 Modulate/Sweep/Burst Key 1. Press Mod, the Modulation function will be enabled. The modulated waveform can be changed by modifying the parameters such as Type, Source, AM Depth, AM Freq, Shape, etc.
  • Page 23 2. Press Sweep, the Sweep function will be enabled. Sine, square, ramp and arbitrary waveforms support the sweep function. In sweep mode, the T3AFG can generate signals with variable frequency. The available range of sweep time is from 1ms to 500s. The trigger source can be Internal, External or Manual.

  • Page 24: To Turn On/Off Output

    To Turn On/Off Output As shown in Figure 1-17 there are two keys on the right side of the operation panel which are used to enable / disable the output of the two channels. Choose a channel and press the corresponding Output key, the key backlight will be lighted and the output will be enabled.

  • Page 25: To Use Common Function Keys

    To Use Common Function Keys As shown in Figure 1-19, there are five keys on the operation panel, which are labelled Parameter, Utility, Store/Recall, Waveforms, and Ch1/Ch2. The instructions below will help to familiarize you with these functions. Figure 1-19 Waveforms Utility and Parameter Key 1.

  • Page 26: Front Panel Operations

    2 Front Panel Operations Up to now, you have got a brief understanding about T3AFG with the front/rear panel, every function control area and keys. You should also know how to set your Function/Arbitrary Waveform Generator for your usage. If you are not familiar with these operations, you are suggested to read chapter one ‘Quick Start’...

  • Page 27: To Set Sine Waveform

    2.1.1 To Set Sine Waveform Press Waveforms key to select the waveform function and then press the Sine softkey. The sine waveform parameters are set by using the sine operation menu. The parameters available for sine waveforms include frequency/period, amplitude/high level, offset/low level and phase. Different sine signals can be generated by setting these parameters.
  • Page 28 To Set the Frequency/Period Frequency is one of the most important parameters of basic waveforms. For different instrument models and waveforms, the available ranges of frequency are different. For detailed information, please refer to the T3AFG Datasheet. The default frequency is 1kHz. 1.
  • Page 29 To Set the Amplitude The amplitude setting range is limited by the “Load” and “Frequency/Period” settings. For detailed information, please refer to the T3AFG Datasheet. 1. Press Waveforms → Sine → Amplitude, to set the amplitude. The amplitude shown on the screen when the instrument is powered on is the default value or the set value of last power down.
  • Page 30 1. Press Waveforms → Sine → Offset, to set the offset. The offset shown on the screen when the instrument is powered on is the default value or the set value of last power down. If you want to set the waveform by low level, press the Offset/LowLevel key again, to switch into the low level parameter (the current operation is displayed in inverse color).
  • Page 31 select the digit to edit, and then use the knob to change its value. Figure 2-5 Setting the Phase Note When the independent mode is enabled, the phase parameter cannot be modified...

  • Page 32: To Set Square Waveform

    2.1.2 To Set Square Waveform Press Waveforms key to select the waveform function, and press the Square softkey. The square waveform parameters are set by using the Square operation menu. The parameters of square waveforms include frequency/period, amplitude/high level, offset/low level, phase and duty. As shown in Figure 2-6, select DutyCycle. The duty cycle parameter area is highlighted in the parameter display window, and users can set the duty cycle value here.
  • Page 33 To Set the Duty Cycle Duty Cycle: The ratio of the amount of time the pulse is in the high state and the waveform‘s period. The duty cycle setting range is limited by the “Frequency/Period” setting. For detailed information, please refer to the T3AFG Datasheet. The default value is 50%.
  • Page 34 Figure 2-7 Setting the Duty Cycle Note: The methods of setting other parameters of square signal are similar to sine waveform function.

  • Page 35: To Set Ramp Waveform

    2.1.3 To Set Ramp Waveform Press Waveforms key to select the waveform function, and press the Ramp softkey. The ramp waveform parameters are set by using the ramp operation menu. The parameters for ramp waveforms include frequency/period, amplitude/high level, offset/low level, phase and symmetry. As shown in Figure 2-8, in the soft key menu, select Symmetry.
  • Page 36 To Set the Symmetry Symmetry: The percentage that the rising period takes up the whole Period. Input Range: 0-100% Default Value: 50% 1. Press Waveforms → Ramp → Symmetry, to set the symmetry. The symmetry shown on the screen when the instrument is powered on is the default value or the set value of last power down.

  • Page 37: To Set Pulse Waveform

    2.1.4 To Set Pulse Waveform Press Waveforms key to select the waveform function, and press the Pulse softkey. The pulse waveform parameters are set by using the pulse operation menu. The parameters for pulse waveforms include frequency/period, amplitude/high level, offset/low level, width, rise/fall and delay. As shown in Figure 2-10, in the soft key menu, select PulWidth.
  • Page 38 To Set the Pulse Width/DutyCycle Pulse width is defined as the time from the 50% threshold of a rising edge amplitude to the 50% threshold of the next falling edge amplitude (as shown in the figure below). The pulse width setting range is limited by the “Minimum Pulse Width”...
  • Page 39 Figure 2-11 Setting the Pulse Width To Set the Rise/Fall Edge Rise edge time is defined as the duration of the pulse amplitude rising from 10% to 90% threshold, while fall edge time is defined as duration of the pulse amplitude moving down from 90% to 10% threshold.
  • Page 40 Figure 2-12 Setting the Rise Edge Note: The methods of setting other parameters of pulse signal are similar to sine waveform function. Refer to “To Set the Sine Waveform” to configure other parameters.

  • Page 41: To Set Noise Waveform

    2.1.5 To Set Noise Waveform Press Waveforms key to select the waveform function, and press the Noise softkey. The noise parameters are set by using the noise operation menu. The parameters for noise include stdev, mean and bandwidth. As shown in Figure 2-13, in the soft key menu, select Stdev, The stdev parameter area is highlighted in the parameter display window, and users can set the stdev value here.
  • Page 42 The stdev shown on the screen when the instrument is powered on is the default value or the set value of last power down. 2. Input the desired stdev. Use the numeric keyboard to input the parameter value directly, and press the corresponding key to select the parameter unit.
  • Page 43 Figure 2-15 Setting the Mean To Set the Bandwidth Press Waveforms → Noise → BandSet and choose “On” to set the bandwidth. The bandwidth shown on the screen when the instrument is powered on is the default value or the set value of last power on. When changing the function, if the current value is valid for the new waveform, it will be used sequentially.
  • Page 44 Figure 2-16 Setting the Bandwidth...

  • Page 45: To Set Dc Waveform

    2.1.6 To Set DC Waveform Press Waveforms → Page 1/2 → DC, to enter the following interface. Please note that there is a “DC offset” parameter at the middle of the screen. Figure 2-17 DC Setting Interface Note: The method of setting offset of DC signal is similar to sine wave function.

  • Page 46: To Set Arbitrary Waveform

    2.1.7 To Set an Arbitrary Waveform The Arb signal consists of two types: the system‘s built-in waveforms and the user-defined waveforms. Built-in waveforms are stored in the internal non-volatile memory. TrueArb output mode allows creation of arbitrary waveforms that contain from 2 to 20 Mpts. TrueArb Choose Waveforms →...
  • Page 47 Table 2-6 Menu Explanations of Arb Waveform Function menu Explanations Set the signal sampling rate or frequency; SRate / Frequency The current parameter will be switched at a second press Set the signal amplitude or high level; Amplitude / HighLevel The current parameter will be switched at a second press Set the signal offset or low level;...
  • Page 48 Figure 2-19 Comparison of ‘0-orderhold’ and ‘Linear’ Interpolation Modes Choose Waveforms → Page 1/2 → Arb → Arb Mode and select the “DDS” output mode. The parameters include frequency/period, amplitude/high level, offset/low level and phase . Figure 2-20 Arb Parameters Display Interface (DDS) In DDS output mode, users can set the frequency or period of the arbitrary waveform.
  • Page 49 Built-in Arbitrary Waveform There are plenty of built-in Arbitrary Waveforms as well as user-defined Arbitrary Waveforms stored in the generator. To select one of them, follow the instructions below. To Select the Built-in Waveform Choose Waveforms → Page 1/2 → Arb → Arb Type → Built-In to enter the following interface, as shown in Figure 2-21.
  • Page 50 UpRamp UpRamp waveform DnRamp DnRamp waveform SineTra Sine-Tra waveform SineVer Sine-Ver waveform ExpFall ExpFall function ExpRise ExpRise function LogFall LogFall function LogRise LogRise function Sqrt Sqrt function Root3 Root3 function function function Airy Airy function Besselj Bessel I function Bessely Bessel II function Dirichlet Dirichlet function...
  • Page 51 Rayleigh Rayleigh distribution Cauchy Cauchy distribution Cardiac Cardiac signal Quake Analog quake waveform Chirp Chirp signal TwoTone TwoTone signal SNR signal AmpALT Gain oscillation curve AttALT Attenuation oscillation curve RoundHalf RoundHalf Waveform RoundsPM RoundsPM Waveform BlaseiWave Time-velocity curve of explosive oscillation DampedOsc Time-displacement curve of damped oscillation SwingOsc...
  • Page 52 GaussiWin GaussiWin window Triangle Triangle window (Fejer window) BlackmanH BlackmanH window Bartlett-Hann Bartlett-Hann window Bartlett Bartlett window BarthannWin Modified Bartlett-Hann window BohmanWin BohmanWin window ChebWin ChebWin window FlattopWin Flat top weighted window ParzenWin ParzenWin window TaylorWin TaylorWin window TukeyWin TukeyWin (tapered cosine) window Tangent Cotangent...
  • Page 53 SquareDuty02 Square waveform with 2% duty SquareDuty04 Square waveform with 4% duty SquareDuty06 Square waveform with 6% duty SquareDuty08 Square waveform with 8% duty SquareDuty10 Square waveform with 10% duty SquareDuty12 Square waveform with 12% duty SquareDuty14 Square waveform with 14% duty SquareDuty16 Square waveform with 16% duty SquareDuty18...
  • Page 54 SquareDuty72 Square waveform with 72% duty SquareDuty74 Square waveform with 74% duty SquareDuty76 Square waveform with 76% duty SquareDuty78 Square waveform with 78% duty SquareDuty80 Square waveform with 80% duty SquareDuty82 Square waveform with 82% duty SquareDuty84 Square waveform with 84% duty SquareDuty86 Square waveform with 86% duty SquareDuty88...
  • Page 55 LFPulse Waveform of the low frequency pulse electrotherapy Tens1 Waveform 1 of the nerve stimulation electrotherapy Tens2 Waveform 2 of the nerve stimulation electrotherapy Tens3 Waveform 3 of the nerve stimulation electrotherapy Sectional sine AM signal Sectional sine FM signal Sectional pulse FM signal Sectional sine PM signal l Sectional PWM signal...

  • Page 56: To Set Pseudo Random Binary Sequence (Prbs)

    2.1.8 To Set the Pseudo Random Binary Sequence (PRBS) Press Waveforms key to select the waveform function, and then press the PRBS softkey. The parameters of pseudo random binary sequence (PRBS) are set by using the PRBS operation menu, as shown in Figure 2-23. The parameters of PRBS include bitrate/period, amplitude/high level, offset/low level, length, logic level and rise/fall.
  • Page 57 below the “Frequency/Period” menu label until Period is highlighted and then enter the value. To Set the BitRate/Period Press Waveforms → Page 1/2 → PRBS → BitRate, to set the bit rate parameter. When changing parameter, if the new value is valid, the value will be set.
  • Page 58 Figure 2-25 Setting the Length To Set the Logic Level Press Waveforms → Page 1/2 → PRBS → Logic Level, to set the logic level. By selecting the corresponding type of logic level, the high level and low level of PRBS can be configured automatically. If Differential is set to ON, channel one will output the waveform with normal polarity while channel two will output the waveform with inverted polarity.
  • Page 59 Table 2-9 Correspondence between logic level and high, low level Logic Level High Level Low Level TTL/CMOS LVTTL/LVCOMS 3.3V -900mV -1.7V LVPECL 2.4V 1.6V LVDS 1.6V 900mV To Set the Rise/Fall Edge Press Waveforms → Page 1/2 → PRBS → Rise/Fall, to set the rise/fall edge parameter.

  • Page 60: To Set Harmonic Function

    2.1.8 To Set the Harmonic Function The T3AFG can be used as a harmonic generator to output harmonics with specified order, amplitude and phase. According to the Fourier transform, a periodic time domain waveform is the superposition of a series of sine waveforms as shown in the equation below: Generally, the component with f frequency is called fundamental waveform, f...
  • Page 61 Table 2-9 Menu Explanations of Harmonic Function Explanations menu Type Set the harmonic type to “odd”, “even” or “all”. Order Set the order of the harmonic. Harmonic Set the amplitude of the harmonic. Ampl Harmonic Set the phase of the harmonic. Phase Cancel Return to the sine parameters menu.
  • Page 62 2. Press Harmonic Ampl to set the amplitude of the harmonic selected. Use the arrow keys and knob to change the value. Or use the numeric keyboard to input the amplitude value and then select the desired unit from the pop-up menu.

  • Page 63: To Set Iq Waveform (Optional)

    2.2 To Set IQ Waveform (Optional) The T3AFG can be used as an IQ waveform generator, providing ASK, PSK, QAM, FSK, MSK and multi-tone signals. The EasyIQ software is necessary when using the T3AFG to generate an IQ waveform. The EasyIQ is a PC program used to download IQ baseband waveform data to the T3AFG through a USB or LAN device interface.
  • Page 64 To Set the Center Frequency Press Parameter→ Center Frequency, to set the center frequency. The range of center frequency is 0Hz - 500MHz. If the center frequency is 0Hz, the two channels will output the IQ baseband signal. If the center frequency is not zero the two channels will output an intermediate frequency (IF) IQ modulation signal whose center frequency is the intermediate frequency.
  • Page 65 Figure 2-32 Setting the Symbol Rate To Set the Amplitude Press Parameter→ Amplitude to set the amplitude. When the unit is V , mV or dBm, the amplitude equal-to the modulus of the I / Q Figure 2-33 Setting the Amplitude To Set the Trigger Source Press Parameter→Trigger Source, to set the Trigger Source, including internal trigger, external trigger and manual trigger, as shown in Figure 2-34.
  • Page 66 Figure 2-34 Setting the Trigger Source 1. Internal Trigger Choose Trigger Source → Internal. Internal trigger is the default trigger source of IQ playback. 2. External Trigger Choose Trigger Source → External, and the generator accepts the trigger signal inputted from the [Aux In/Out] connector at the rear panel. One period of the IQ waveform will be generated for every trigger signal received at the Aux In/Out input 5V CMOS pulse with the specified polarity.
  • Page 67 waveform. Rotate the knob to select the .arb file and then push down the knob or press the Recall key to recall the IQ data. The Browse key is used to enter the subdirectory, and the Delete key is used to delete the selected file. Note: When the EasyIQ downloads a waveform from PC to the instrument, the instrument will store the waveform as a .arb file.

  • Page 68: Easyiq Software

    2.2.2 EasyIQ Software The IQ baseband waveform data can be generated by the EasyIQ software. The setting of EasyIQ includes Data Source, Modulation and Filter, as shown in Figure 2-36. Figure 2-36 EasyIQ Interface 2.2.2.1 Data Source Data Source panel sets parameters for the symbol data that is to be modulated. As show in Figure 2-37, in the Data Source console, you can set the data setup, symbol length and symbol rate.
  • Page 69 Data Setup Selects a data source type for modulation. Choices: PN7 | PN9 | PN15 | PN23 | User File | Customer Bit Pattern Default: PN9 PN7 | PN9 | PN15 | PN23: When selecting “PN7 | PN9 | PN15 | PN23” as data source type, software generates data source bit automatically.
  • Page 70 Symbol Length Sets the length of modulated symbols. Range: 100 to 100000 Default: 512 Symbol Rate Sets the symbol rate (symbols per second) of the waveform. Range: 250 to 37500000/Oversampling Symbol/s Default: 1000000 Symbol/s Bits-Per-Symbol Displays the number of bits contained in one modulated symbol. It is read only, not settable.
  • Page 71 D8PSK | 8QAM | 16QAM | 32QAM | 64QAM | 128QAM | 256QAM Default: 16QAM After a modulation type is selected, the constellation of current modulation is displayed on right side of the panel: You can double-click on the constellation display to show a zoomed window of the constellation, you can also double click on the zoomed constellation window to close it.
  • Page 72 The Symbol and FSK deviation table is displayed on the right side of the panel: MSK: When selecting MSK as current modulation type, the filter type can only be selected as Gaussian. Multitone Check the to set the radio button to set the multi-tone signal. Below is the interpretion for the multi-tone parameters.
  • Page 73 Figure 2-40 Multi-tone Custom Sets a custom constellation for modulation. After selecting Custom modulation type, a custom constellation editing window is displayed, as shown in Figure 2- Figure 2-41 Custom modulation In the custom constellation editing window, you can preset the constellation data to a known modulation type first by pressing buttons, and then you can insert or delete constellation points and edit the IQ data for each...
  • Page 74 Note: When editing the constellation points, the number of points must be a value of power of 2 and the Symbol values cannot be duplicated, otherwise there will be error message when you click “OK” button. 2.2.2.3 Filter EasyIQ provides three types of filters, including raised cosine filter, root raised cosine filter and Gaussian filter.
  • Page 75 Filter Length: Set length of filter in symbols. Range: 1-min (Symbol Length, 512) Default: 32 Oversampling: Sets the oversampling factor of the waveform. The waveform Sample Rate is determined based on Symbol Rate and Oversampling factor. Range: 2 - 32. Default: 2 2.2.2.4 Waveform Display After setting all parameters for modulation and click the...
  • Page 76 Figure 2-43 Waveform Spectrum The horizontal coordinate shows the Frequency values in Hz and the vertical coordinate shows the Magnitude values in dB. IQ Waveform Display After clicking “IQ Waveform” tab, the Time domain plot of modulated IQ data is displayed.
  • Page 77 Figure 2-45 Download Interface Two types of connection are possible for the EasyIQ to access the T3AFG: USB Device If the T3AFG is connected to the PC through USB device correctly, in the "VISA Address" drop down list the USBTMC Visa address of the T3AFG will be displayed, as shown in Figure 2-46.
  • Page 78 address of the T3AFG to replace the "LOCALHOST" characters, as shown in Figure 2-47. And then click the "download" button to download the waveform data. Figure 2-47 Download Data through LAN...

  • Page 79: To Set Modulation Functions

    To Set the Modulation Function Use the Mod key to generate modulated waveforms. The T3AFG can generate AM, FM, ASK, FSK, PSK, PM, PWM and DSB-AM modulated waveforms. Modulating parameters vary with the types of the modulation. In AM, users can set the source (internal/external), depth, modulating frequency, modulating waveform and carrier.
  • Page 80 2.3.1 AM The modulated waveform consists of two parts: the carrier and the modulating waveform. In AM, the amplitude of the carrier varies with the instantaneous voltage of the modulating waveform. Press Mod → Type → AM, the parameters of AM modulation are shown in Figure 2-24.
  • Page 81 Set the modulating waveform frequency. Frequency AM Freq range: 1mHz-1MHz (internal source only). To Select Modulation Source The T3AFG can accept a modulating signal from an internal or external modulation source. Press Mod → AM → Source to select “Internal” or “External”...
  • Page 82 2. Select CH1 and press Mod to select the desired modulation type, set the corresponding parameters, and then select external modulation source. 3. Select CH2 and select the desired modulating waveform and set the corresponding parameters. 4. Press Output to enable the output of CH1. To Set Modulation Depth Modulation depth expressed as a percentage indicates the amplitude variation degree.

  • Page 83: Dsb-Am

    2.3.2 DSB-AM DSB-AM is an abbreviation for Double-Sideband Suppressed Carrier– Amplitude Modulation. Press Mod → Type → DSB-AM. The parameters of DSB-AM modulation are shown in Figure 2-25. Figure 2-25 Setting Interface of DSB-AM Modulation Table 2-11 Menu Explanations of the DSB-AM Parameters Function Settings Explanation...
  • Page 84 2.3.3 FM The modulated waveform consists of two parts: the carrier and the modulating waveform. In FM, the frequency of the carrier varies with the instantaneous voltage of the modulating waveform. Press Mod → Type → FM, the parameters of FM modulation are shown in Figure 2-26 Figure 2-26 Setting Interface of FM Modulation Table 2-12 Menu Explanations of the FM Parameters...
  • Page 85 Set the modulating waveform frequency. Frequency FM Freq range 1mHz-1MHz (internal source). To Select Modulation Source The T3AFG can accept a modulating signal from an internal or external modulation source. Press Mod → FM → Source to select “Internal” or “External”...
  • Page 86 2.3.4 PM The modulated waveform consists of two parts: the carrier and the modulating waveform. In PM, the phase of the carrier varies with the instantaneous voltage level of the modulating waveform. Press Mod → Type → PM, the parameters of PM modulation are shown in Figure 2-27.
  • Page 87 Set the modulating waveform frequency. Frequency PM Freq range: 1mHz-1MHz. To Select the Modulation Source The T3AFG can accept a modulating signal from an internal or external modulation source. Press Mod → PM → Source to select “Internal” or “External” modulation source.

  • Page 88: Fsk

    2.3.5 FSK The FSK is Frequency Shift Keying, the output frequency of which switches between two preset frequencies (carrier frequency and the hop frequency or sometimes known as mark frequency (1) and space frequency (0)). Press Mod → Type → FSK, the parameters of FSK modulation are shown in Figure 2-28.
  • Page 89 1. Internal Source When internal modulation source is selected, the modulating waveform is a square with 50% duty cycle. 2. External Source When external modulation source is selected, the generator accepts external modulating signal from the [Aux In/Out] connector at the rear panel. The external modulating signal of FSK must be a square wave which complies with 5V CMOS level specification.

  • Page 90: Ask

    2.3.6 ASK When using ASK (Amplitude Shift Keying), the carrier frequency and key frequency will need to be set. The key frequency is the shift rate of modulated waveform amplitude. Press Mod → Type → ASK, the parameters of ASK modulation are shown in Figure 2-29.

  • Page 91: Psk

    2.3.7 PSK When using PSK (Phase Shift Keying), configure the generator to “shift” its output phase between two preset phase values (carrier phase and modulating phase). The default modulating phase is 180°. Press Mod → Type → PSK, the parameters of PSK modulation are shown in Figure 2-30.
  • Page 92 To Set Polarity Press Polarity to select the “Positive” or “Negative” of the modulating waveform to control the output phase. When internal modulation is selected, if the polarity is “positive”, logic low of the modulating waveform amplitude corresponds to carrier phase output and logic high corresponds to modulating phase output;...

  • Page 93: Pwm

    2.3.8 PWM In PWM (Pulse Width Modulation), the pulse width of the pulse varies with the instantaneous voltage of the modulating waveform. The carrier can only be pulse. Press Waveforms → Pulse → Mod, the parameters of PWM modulation are shown in Figure 2-31 Figure 2-31 Setting Interface of PWM Modulation Table 2-17 Menu Explanations of the PWM Parameters...
  • Page 94 Set the modulating waveform frequency. Frequency PWM Freq range: 1mHz-1MHz (internal source only). To Select the Modulation Source The T3AFG can accept a modulating signal from an internal or external modulation source. Press Source to select “Internal” or “External” modulation source.

  • Page 95: To Set Sweep Function

    2.4 To Set Sweep Function In sweep mode, the generator changes the output frequency between the start frequency and the stop frequency in the sweep time specified by the user. The waveforms that support sweep include sine, square, ramp and arbitrary. Press Sweep key to enter the following menu.
  • Page 96 Note: To select the secondary menu item, press the key a second time. For example, if you wish to adjust the period of a waveform, press the softkey below the “Frequency/Period” menu label until Period is highlighted and then enter the value. Figure 2-35 Setting Interface of Sweep (Page 2/2) Table 2-19 Menu Explanations of Sweep (Page 2/2) Function...
  • Page 97 • Choose Direction → Up, the generator will sweep from Start frequency to Stop frequency. • Choose Direction → Down, the generator will sweep from Stop frequency to Start frequency. • Choose Direction → Up_Down, the generator will sweep from Start frequency to Stop frequency, then from Stop frequency to Start frequency.
  • Page 98 Log Sweep In log sweep, the output frequency of the instrument varies in a logarithmic fashion, that is, the output frequency changes in the way of ‘decade per Second’. Choose Sweep → Page 1/2 → Type → Log, there is an exponential function curve displayed on the waveform on the screen, indicating that the output frequency changes in a logarithmic mode.
  • Page 99 1. Internal Trigger Choose Source → Internal, the generator outputs continuous sweep waveform when internal trigger is selected. The default is Internal. Choose Trig Out → On, the [Aux In/Out] connector at the rear panel will output the trigger signal. 2.

  • Page 100: To Set Burst Function

    To Set the Burst Function The Burst function can generate versatile waveforms in n this mode. Burst times can last a specific number of waveform cycles (N-Cycle mode), or when an external gated signals (Gated mode) is applied. Any waveform (except DC) may be used as the carrier, but noise can only be used in Gated mode.
  • Page 101 Figure 2-38 N-Cycle Burst Interface (Page 1/2) Table 2-21 Menu Explanations of the N-Cycle Burst (Page 1/2) Function Settings Explanation Menu NCycle Use the N-Cycle mode. Set the number of the bursts in N-Cycle. Cycles Set the number of the bursts in N-Cycle to be infinite. Infinite Start Phase Set the start phase of the burst.
  • Page 102 Figure 2-39 N-Cycle Burst Interface (Page 2/2) Table 2-22 Menu Explanations of the N-Cycle Burst (Page2/2) Function Settings Explanation Menu Trig Delay Set the delay time before the burst starts. Disable trigger out. Trig Out Enable trigger out. Page Return to the previous page. Gated In gated mode, the generator controls the waveform output according to the gate signal level.
  • Page 103 Figure 2-41 Gated Burst Interface Table 2-23 Menu Explanation of the Gated Burst Function Settings Explanation Menu Gated Use the gated mode. Positive Polarity Set the polarity for the gated signal. Negative Start Phase Set the start phase of the burst. Burst Period Set the burst Period.
  • Page 104 Burst Period Burst Period is only available when the trigger source is internal. It is defined as the time from the start of a burst to the start of the next one. Choose Burst Period and use the numeric keyboard or arrow keys and knob to input the desired value.
  • Page 105 Delay Set the time delay between the trigger input and the start of the N-Cycle burst. Burst Trigger Source The burst trigger source can be internal, external or manual. The generator will generate a burst output when a trigger signal is received and then wait for the next trigger source.

  • Page 106: To Store And Recall

    To Store and Recall T3AFG can store the current instrument state and user-defined arbitrary waveform data in internal or external memory and recall them when needed. Press Store/Recall to enter the following interface. Figure 2-42 Store/Recall Interface (Page 1/2) Table 2-24 Menu Explanation of Save and Recall Function Settings Explanation...

  • Page 107: Storage System

    Figure 2-43 Store/Recall Interface (Page 2/2) Table 2-25 Menu Explanations of Save and Recall Function Settings Explanation Menu Copy Copy the selected file. Paste Paste the selected file. Cancel Exit the Store/Recall interface. Page Return to the previous page. 2.6.1 Storage System The T3AFG provides an internal non-volatile memory (C Disk) and a USB Host interface for external memory.
  • Page 108 device connected.”, as shown in Figure 2-44. After removing the U-Disk, the screen will display a prompt message “USB device removed.” And “USB Device (0:)” in the storage menu will disappear. Figure 2-44 Storage System Note: The T3AFG can only identify files of which filenames consist of English letters, number and underscore.

  • Page 109: File Type

    2.6.2 File Type Choose Store/Recall → File Type to select the desired file type. Available file types are State File and Data File. State File Store the instrument state in internal or external memory in “*.xml” format. The state file stored includes waveform parameters and modulation, sweep, burst parameters of two channels and utility parameters.

  • Page 110: File Operation

    2.6.3 File Operation To Save the Instrument State Users can store the current instrument state in internal and external memories. The storage will save the selected function (including the basic waveform parameters, modulation parameters and other utility settings used.) To save the instrument state, the procedures are given as followed: 1.
  • Page 111 Table 2-26 Menu Explanation of File Storage Function Settings Explanation Menu Cursor upward to select. Down Cursor downward to select. Select Select the current character. Delete Delete the current character. Save Store the file with the current name. Cancel Return to the store/Recall interface. Select the character Users can select the desired character from the virtual soft keyboard by using the knob or Up and Down menus.
  • Page 112 2. Choose the file to be recalled. Rotate the knob or click the touch screen to select the file you want to recall. 3. Recall the file. Choose Recall, press the knob or click the location of the file on the screen, the generator will recall the selected file and display the corresponding prompt message when the file is read successfully.
  • Page 113 Rotate the knob to select USB Device (0:) and press the knob to open its directory. Then rotate the knob to select the file you want to copy and press Page 1/2 → Copy. 3. Paste the file. Rotate the knob to select Local (C:) and press the knob to open its directory. Then press Paste.

  • Page 114: To Set Utility Function

    To Set Utility Function With the Utility function, the user can set the parameters of the generator such as Sync, Interface, System Setting, Self Test and Frequency Counter, etc. Press Utility to enter the utility menu, as shown in Figure 2-46 and Figure 2-47.
  • Page 115 Figure 2-47 Utility Setup Interface (Page 2/3) Table 2-28 Menu Explanations of Utility (Page2/3) Function Settings Explanation Menu Interface Set the parameters of remote interfaces. Sync Set the sync output. Internal CLKSource Choose the system clock source. External Help View the help information. OverVoltage Turn on/off the over voltage protection function.

  • Page 116: System Settings

    Table 2-31 Menu Explanation of Utility (Page 3/3) Function Settings Explanation Menu Multi-Device Multi-Device Synchronization setting Sync Page 3/3 Return to Page 1 2.7.1 System Settings Press Utility → System, to enter the following interface. Figure 2-48 System Setup Interface (Page 1/2) Table 2-29 Menu Explanations of System Setup (Page 1/2) Function Settings...
  • Page 117 Figure 2-49 System Setup Interface (Page 2/2) Table 2-30 Menu Explanations of System Setup (Page 2/2) Function Settings Explanation Menu 1min 5min 15min 30min Enable or disable the screen saver. ScrnSvr 1hour 2hour 5hour Disable the screen saver. System Info View the system information Firmware Update the firmware by the U-disk.
  • Page 118 Figure 2-50 Set the Number Format Table 2-31 Menu Explanations of Setting the Number Format Function Settings Explanation Menu Use dot to represent decimal point. Point Use comma to represent decimal point. Enable the Separator. Separator Close the Separator. Space Use Space as the separator.
  • Page 119 English Interface Figure 2-51 English Interface Chinese Interface Figure 2-52 Chinese Interface 3. Power On Choose the T3AFG setting when the generator is powered on. Three choices are available: ‘Default’, ‘Last’, and ‘User’. Once selected, the settings will be applied when the instrument is powered on. This setting is stored in non-volatile memory and will not be influenced by the Set To Default operation.
  • Page 120 • Last: includes all system parameters and states, except channel output state. • Default: denotes the factory defaults except certain parameters (such as Language). • User: The instrument will automatically recall the setting stored in specified state file when powered on. To specify a state file, press Select File in the interface and recall an instrument state file in “*.xml”...
  • Page 121 Direction ↑ Burst Default Burst Period 10ms Start Phase 0° Cycles 1Cycle Trig Out Delay 521ns Trigger Default Source Internal 5. Beeper Enable or disable the beeper. Press Utility →System → Beeper to select “On” or “Off” and the default is “On”. 6.
  • Page 122 T3AFG500 Figure 2-53 System Information Interface 8. Update The software version and configuration file of the generator can be updated directly via U-disk. Follow the steps below: 1. Insert U-disk with firmware update file (*.ADS) and configuration file (*.CFG) to USB host interface on the front panel of the generator. 2.
  • Page 123 9. Built-in Help System The T3AFG provides a built-in help system, by which users can view the help information at any time when operating the instrument. Press Utility System → Page 1/2 → Help to enter the following interface. Figure 2-54 Help Menu Figure 2-55 Help Menu Explanations Function Explanation...

  • Page 124: Test Cal

    2.7.2 Test/Cal Choose Utility → Test/Cal, to enter the following interface. Figure 2-56 Test/Cal function Menu Table 2-33 Menu Explanations of Test/Cal Setting Function Explain Menu SelfTest Perform a system self-test. TouchCal Do a touch screen calibration. Return Return to the Utility menu. Self Test Press Utility →...
  • Page 125 Figure 2-57 Self T est Interface Table 2-34 Menu Explanations of Self Test Function Explain Menu ScrTest Run screen test program. KeyTest Run keyboard test program. LEDTest Run key indicator lights test program. BoardTest Run hardware circuit self-test program. Cancel Return to the Test/Cal menu.
  • Page 126 Figure 2-58 Screen Test Interface 2. Key Test Select KeyTest to enter the keyboard test interface, the on-screen white rectangle shapes represent the front panel keys. The circle between two arrows represents the knob. Test all keys and knob and also verify that all the backlight keys illuminate correctly.
  • Page 127 shapes represent the front panel keys. The prompt message ‘Please press ‘7’ Key to continue, press ‘8’ Key to exit’ is displayed. Press the ‘7’ key continuously for testing and when a key is lit, the corresponding area on the screen will display in blue color.
  • Page 128 Press Utility → Test/Cal → TouchCal, to enter the following interface. Figure 2-62 Touch Adjust Interface According to the message, click the red circle on the upper left corner, upper right corner, lower left corner and lower right corner of the screen in sequence. After touch calibration is done, the system will display the following tip.

  • Page 129: Frequency Counter

    2.7.3 Frequency Counter The T3AFG provides a frequency counter which could measure frequencies between 100mHz to 400MHz. The dual channels can still output normally when the counter is enabled. Press Utility → Counter, to enter the following interface. Figure 2-64 Frequency Counter Interface Table 2-35 Menu Explanations of Frequency Counter Function Settings...
  • Page 130 Figure 2-65 Counter Setup Interface Table 2-36 Menu Explanations of Setup Function Settings Explanation Menu Set the coupling mode to DC Mode Set the coupling mode to AC Open the high frequency rejection filter. Close the high frequency rejection filter. Default Set the frequency counter settings to default.
  • Page 131 Choose TrigLev and use the numeric keyboard to input the desired value and select the unit (V or mV) from the pop-up menu. Or use the knob and arrow keys to change the parameter value. 4. Coupling Mode Sets the coupling model of the input signal to “AC” or “DC”. The default is “AC”.

  • Page 132: Output

    2.7.4 Output Press Utility → Output to enter the following interface. Figure 2-66 Output Setup Interface Load For the [CH1] and [CH2] connectors on the front panel, the generator has an output impedance of 50Ω, but the instrument features a load setting that is used to adjust the displayed amplitude setpoint based on the expected external load impedance.
  • Page 133 when the impedance is changed to ‘HighZ’. If the load is changed from ‘HighZ’ to ‘50 Ω’, the displayed amplitude will be reduced half of the previous value. Only the displayed values change with the parameter. The generator output impedance does not change.
  • Page 134 waveform of CH2 in the general mode while the waveform of CH1+CH2 can be output in the combined mode. Press Utility → Output Setup → Wave Combine to enter the waveforms combining interface, as shown in the following figure. Figure 2-67 Waveforms Combining Interface Table 2-37 Menu Explanation of Wave Combine Function Settings...

  • Page 135: Copy/Coupling

    2.7.5 CH Copy/Coupling Channel Copy The T3AFG supports state and waveform copy function between its two channels. That is to say, it copies all parameters and states (including the channel output state) and arbitrary waveform data of one channel to the other one.
  • Page 136 Note: Channel coupling or track function and channel copy function are mutually exclusive. When channel coupling or track function is enabled, the menu Channel Copy is not available. Channel Coupling The T3AFG supports frequency, amplitude and phase coupling. Users can set the frequency deviation/ratio, amplitude deviation/ratio or phase deviation /ratio of the two channels.
  • Page 137 2. To Select Frequency Coupling Mode Press FreqMode to choose “Deviation” or “Ratio”, and then use the numeric keyboard or knob and arrow keys to input the desired value. • Deviation: the frequency deviation between CH1 and CH2. The resulting signal is represented by: FreqCH2-FreqCH1=FreqDev.
  • Page 138 is changed, the phase of the other channel will be changed accordingly. At this point, aligning phase between the two channels can be achieved without executing the Eqphase operation. 3. Channel coupling and channel function are mutually exclusive. When channel coupling is enabled, the menu Channel Copy is hidden. Channel Track When the track function is enabled, by changing the parameters or states of CH1, the corresponding parameters or states of CH2 will be adjusted to the...
  • Page 139 Figure 2-71 Phase Deviation Interface...

  • Page 140: Remote Interface

    2.7.6 Remote Interface The T3AFG can be controlled remotely via USB and LAN interfaces. Users can set the corresponding interface according to their needs. Press Utility → Page 1/2 → Interface to open the following menu. The user can set LAN parameters. Figure 2-72 Interface Settings Table 2-39 Menu Explanations of Interface Function...
  • Page 141 (Standard Commands for Programmable Instruments). For more information about the commands and programming, please refer to “Remote Control Manual”. 2. PC software Users can use the PC software Measurement & Automation Explorer of NI (National Instruments Corporation) to send commands to control the instrument remotely.
  • Page 142 Remote Control via LAN The T3AFG can communicate with a PC through the LAN interface. Users can view and modify the LAN parameters. 1. Connect the device. Connect the generator to your PC or the LAN of your PC using a network cable.
  • Page 143 Press IP Address and use the arrow keys and numeric keyboard or knob to enter your desired IP address. The setting is stored in non-volatile memory and will be loaded automatically when the generator is powered on at the next time. 2) To Set Subnet Mask The format of subnet mask is nnn.nnn.nnn.nnn and each nnn ranges from 0 to 255.
  • Page 144 4) DHCP Configuration Mode In DHCP mode, the DHCP server in the current network assigns LAN parameters, e.g. IP address, for the generator. Press DHCP to select “On” or “Off” to turn DHCP mode on or off. The default is “Off”. 3.

  • Page 145: Sync Output

    2.7.7 Sync Output The generator provides Sync output through the [Aux In/Out] connector on the rear panel. When the synchronization is on, the port can output a CMOS signal with the same frequency as basic waveforms (except Noise and DC), arbitrary waveforms, and modulated waveforms (except external modulation).
  • Page 146 2) When the frequency of the waveform is greater than 10MHz, there is no sync signal output. 3) Noise and DC: there is no sync signal output. 4) PRBS: The frequency of the sync signal is the same as the bit rate of the waveform.

  • Page 147: Clock Source

    2.7.8 Clock Source The T3AFG provides an internal 10MHz clock source. It also can accept external clock source from the [10MHz In] connector at the rear panel. It can also output a 10MHz clock source from the [10MHz Out] connector for use by any other devices.
  • Page 148 Sync methods for two or more instruments: • Synchronization between two instruments Connect the [10MHz Out] connector of generator A (‘Internal’ clock) to the [10MHz In] connector of generator B (‘External’ clock) and set the output frequencies of A and B as a same value to enable synchronization. •...

  • Page 149: Phase Mode

    2.7.9 Phase Mode Press Utility → Page 1/3 → Phase Mode to enter the mode setup Interface, as shown in Figure 2-101. Figure 2-101 Mode Setup Interface Phase-locked Mode When changing the frequency, the DDSs of both channels reset, and the phase deviation between CH1 and CH2 is maintained.
  • Page 150 Independent Mode When changing the frequency, neither channels‘ DDS resets and the phase deviation between CH1 and CH2 changes at random. This mode should be used to minimize the output disruptions when changing frequencies manually. This mode will deliver the smoothest transitions between frequency values. When the independent mode is enabled, the phase parameter cannot be modified and the menu Phase is hidden, as shown in Figure 2-103.

  • Page 151: Overvoltage Protection

    2.7.10 Overvoltage Protection Choose Utility → Page 1/2 → OverVoltage Protection to turn on or off the function, as shown in the following figure. Figure 2-79 Overvoltage Protection Interface If the state is set to ON, overvoltage protection of CH1 and CH2 will take effect once any of the following conditions is met.

  • Page 152: Multi-Device Synchronisation

    2.7.11 Multi-Device Synchronization Press Utility → Page 1/3 → Page 2/3 → Multi-Device Sync to set the function, as shown in Figure 2-105. Figure 2-105 Multi-Device Sync Interface Synchronization of the frequency and alignment of the phase can be realized between two or more T3AFG instruments by utilizing the Multi- Device Sync function.
  • Page 153 Note: The synchronous signal is transmitted from [Aux In/Out] of the Master to [Aux In/Out] of the Slave(s) through the BNC cable when Sync Devices is pressed. There is a certain delay between the moment when the master sends the synchronous signal and the moment when the Slave(s) receive it.

  • Page 154: Examples

    3 Examples To help the user master how to use the T3AFG more efficiently, we have provided some examples. All the examples below use the default setting of the instrument except in special cases. This chapter includes the following topics: �...

  • Page 155: Example 1: Generate A Sine Waveform

    Example 1: Generate a Sine Waveform Generate a sine waveform with 1MHz frequency, 5Vpp amplitude and 1Vdc offset. Steps: Set the frequency. 1. Press Waveforms → Sine →Frequency/Period and choose Frequency which will display in blue color. 2. Input ‘1’ from the keyboard and choose the unit ‘MHz’. The frequency is set to 1MHz.
  • Page 156 When the frequency, amplitude and offset are set, the waveform generated is shown in Figure 3-1. Figure 3-1 Generate a Sine Waveform...

  • Page 157: Example 2: Generate A Square Waveform

    Example 2: Generate a Square Waveform Generate a square waveform with 5kHz frequency, 2Vpp amplitude, 1Vdc offset and 30% duty cycle. Steps: Set the frequency. 1. Press Waveforms → Square → Frequency/Period and choose Frequency which will display in blue color. 2.
  • Page 158 When the frequency, amplitude, offset and duty cycle are set, the waveform generated is shown in Figure 3-2. Figure 3-2 Generate a Square Waveform...

  • Page 159: Example 3: Generate A Ramp Waveform

    Example 3: Generate a Ramp Waveform Generate a ramp waveform with 10μs period, 100mVpp amplitude, 20mVdc offset, 45° phase and 30% symmetry. Steps: Set the Period. 1. Press Waveforms → Ramp → Frequency/Period and choose Period which will display in blue color. 2.
  • Page 160 When the period, amplitude, offset, phase and symmetry are set, the waveform generated is shown in Figure 3-3. Figure 3-3 Generate a Ramp Waveform...

  • Page 161: Example 4: Generate A Pulse Waveform

    Example 4: Generate a Pulse Waveform Generate a pulse waveform with 5kHz frequency, 5V high level, -1V low level, 40μs pulse width, 10 ns rising edge, 30 ns falling edge and 20 ns delay. Steps: Set the Frequency. 1. Press Waveforms → Pulse → Frequency/Period and choose Frequency, which will display in blue color.
  • Page 162 set to 10 ns. Set the Fall Edge. 1. Press Rise/Fall and choose Fall which will display in a blue color. 2. Input ‘30’ from the keyboard and choose the unit ‘ns’. The falling edge is set to 30 ns. Set the Delay.

  • Page 163: Example 5: Generate A Noise

    Example 5: Generate a Noise Waveform Generate noise with 0.5V stdev and 1 V mean. Steps: Set the Stdev. 1. Press Waveforms → Noise → Stdev to choose Stdev which will display in blue color. 2. Input ‘0.5‘ from the keyboard and choose the unit ‘V‘. The stdev is set to 0.5 V.

  • Page 164: Example 6: Generate A Pseudo Random Binary Sequence

    Example 6: Generating a Pseudo Random Binary Sequence Generate a pseudo-random binary sequence with 50 kbps bit rate, 5 V high level, 0 V low level, PRBS-7 length, 20 ns Rise/Fall edge by following these steps: Set the Bit Rate. 1.
  • Page 165 2. Input ‘20’ from the keyboard and choose the unit ‘ns’. The bit rate is set to 20 ns. When the bit rate, high level, low level, length and rise/fall edge are set, the waveform generated is shown in Figure 3-6. Figure 3-6 Generate a Pseudo Random Binary Sequence...

  • Page 166: Example 7: Generate A Linear Sweep Waveform

    3.7 Example 7: Generate a Linear Sweep Waveform Generate a sine sweep waveform whose frequency starts at 100Hz and sweeps to a frequency of 10KHz. Use internal trigger mode, linear sweep, and a sweep time of 2s. Steps: Set the sweep function. 1.
  • Page 167 Set the sweep profiles. 1. Press Type and choose Linear. When all parameters above are set, the linear sweep waveform generated is shown in Figure 3-7. Figure 3-7 Generate a Linear Sweep Waveform...

  • Page 168: Example 8: Generate A Burst Waveform

    Example 8: Generate a Burst Waveform Generate a burst waveform with 5 cycles. The burst period is 3ms. Use internal trigger and 0° start phase. Steps: Set the burst function. 1. Press Waveforms, and choose the sine waveform as the burst function. Set the frequency, amplitude and offset.
  • Page 169 Set the burst cycle. 1. Press Cycle, Input ‘5‘ from the keyboard and choose the unit ‘Cycle‘ to set the burst cycle count to 5. Set the delay. 1. Press Page 1/2 to choose Delay, and input ‘100‘ from the keyboard and choose the unit ‘μs‘...

  • Page 170: Example 9: Generate An Am Modulation Waveform

    3.9 Example 9: Generate an AM Modulation Waveform Generate an AM modulation waveform with 80% depth. The carrier is a sine wave with 10kHz frequency, and the modulating wave is a sine wave with 200Hz frequency. Steps: Set the frequency, amplitude and offset of the carrier wave. 1.
  • Page 171 When all parameters above are set, the waveform generated is shown in Figure 3-9. Figure 3-9 Generate an AM Modulation Waveform...

  • Page 172: Example 10: Generate A Fm Modulation Waveform

    3.10 Example 10: Generate a FM Modulation Waveform Generate a FM modulation waveform, the carrier is a sine wave with 10kHz frequency, and the modulating wave is a sine wave with 1Hz frequency and 2kHz frequency deviation. Steps: Set the frequency, amplitude and offset of the carrier wave. 1.
  • Page 173 When all parameters above are set, the waveform generated is shown in Figure 3-10. Figure 3-10 Generate a FM Modulation Waveform...

  • Page 174: Example 11: Generate A Pm Modulation Waveform

    3.11 Example 11: Generate a PM Modulation Waveform Generate a PM modulation waveform, the carrier is a sine wave with 10kHz frequency, and the modulating wave is a sine wave with 2kHz frequency and 90° phase deviation. Steps: Set the frequency, amplitude and offset of the carrier wave. 1.
  • Page 175 When all parameters above are set, the waveform generated is shown in Figure 3-11. Figure 3-11 Generate a PM Modulation Waveform...

  • Page 176: Example 12: Generate A Fsk Modulation Waveform

    3.12 Example 12: Generate a FSK Modulation Waveform Generate a FSK modulation waveform with 200Hz key frequency. The carrier is a sine wave with 10kHz frequency, and the hop frequency is 500Hz. Steps: Set the frequency, amplitude and offset of the carrier wave. 1.
  • Page 177 When all parameters above are set, the waveform generated is shown in Figure 3-12. Figure 3-12 Generate a FSK Modulation Waveform...

  • Page 178: Example 13: Generate An Ask Modulation Waveform

    3.13 Example 13: Generate an ASK Modulation Waveform Generate an ASK modulation waveform with 500Hz key frequency. The carrier is a sine wave with 5kHz frequency. Steps: Set the frequency, amplitude and offset of the carrier wave. 1. Press Waveforms, and choose the sine waveform as the carrier wave 2.
  • Page 179 When all parameters above are set, the waveform generated is shown in Figure 3-13 Figure 3-13 Generate an ASK Modulation Waveform...

  • Page 180: Example 14: Generate A Psk Modulation Waveform

    3.14 Example 14: Generate a PSK Modulation Waveform Generate a PSK modulation waveform with 200Hz key frequency. The carrier is a sine wave with 1kHz frequency. Steps: Set the frequency, amplitude and offset of the carrier wave. 1. Press Waveforms, and choose the sine waveform as the carrier wave 2.
  • Page 181 When all parameters above are set, the waveform generated is shown in Figure 3-14. Figure 3-14 Generate a PSK Modulation Waveform...

  • Page 182: Example 15: Generate A Pwm Modulation Waveform

    3.15 Example 15: Generate a PWM Modulation Waveform Generate a PWM modulation waveform with 200Hz key frequency. The carrier is a pulse wave with 5kHz frequency. Steps: Set the frequency, amplitude and offset of the carrier wave. 1. Press Waveforms, and choose the Pulse waveform as the carrier wave 2.
  • Page 183 When all parameters above are set, the waveform generated is shown in Figure 3-15. Figure 3-15 Generate a PWM Modulation Waveform...

  • Page 184: Example 16: Generate A Dsb-Am Modulation Waveform

    3.16 Example 16: Generate a DSB-AM Modulation Waveform Generate a DSB-AM modulation waveform with 100Hz modulating frequency. The carrier is a sine wave with 2kHz frequency. Steps: Set the frequency, amplitude and offset of the carrier wave. 1. Press Waveforms, and choose the sine waveform as the carrier wave. 2.
  • Page 185 When all parameters above are set, the waveform generated is shown in Figure 3-16. Figure 3-16 Generate a DSB-AM Modulation Waveform...

  • Page 186: Example 17: Generate An Iq Waveform

    3.17 Example 17: Generating an IQ Waveform EasyIQ is software that provides a programming interface for easy creation of IQ waveforms. See the Teledyne LeCroy website for more information. In this example, we will generate an IQ modulation waveform with 32QAM, the center frequency is 100 MHz, the length is 2048, the symbol rate is 1 MSymbol/s, and using the RootCosine filter.
  • Page 187 1. Click "Download" button to enter the download console. Select "Current Settings" as the Type, and select the USBTMC Visa address of the T3AFG. And then, click "Download" to download the IQ baseband data to the T3AFG. Figure 3-18 EasyIQ Download Interface T3AFG setting.

  • Page 188: Troubleshooting

    2. Inspect the entire instrument. In case there is any mechanical damage or defect, or the instrument does not operate properly or fails in the performance tests, notify the Teledyne Test Tools Sales Representative. If the shipping container is damaged, or the cushioning materials show signs of stress, notify the carrier as well as the Teledyne Test Tools Sales Department.

  • Page 189: Troubleshooting

    (2) Ensure the power switch is turned on. (3) After the inspections above, restart the generator. (4) If the generator still doesn‘t work after checking, please contact Teledyne Test Tools. 2. If there is no waveform output after setting the parameters, please do as the following steps: (1) Check whether the BNC cable has a good connection to the output port.

  • Page 190: Service And Support

    5 Service and Support 5.1 Maintenance summary Teledyne Test Tools warrants that the products it manufactures and sells will be free from defects in materials and workmanship for three years from the date of shipment from an authorized Teledyne Test Tools distributor. If a product is proved to be defective within the warranty period, Teledyne Test Tools will provide repair or replace the unit as described in the complete warranty statement.

  • Page 191: Contact Teledyne Test Tools

    5.2 Contact Teledyne LeCroy (US Headquarters) 700 Chestnut Ridge Road Chestnut Ridge, NY. USA 10977-6499 Phone: 800-553-2769 or 845-425-2000 Fax Sales: 845-578-5985 Email Sales: contact.corp@teledynelecroy.com Email Support: support@teledynelecroy.com (Oscilloscopes, Waveform Generators, Signal Integrity) Web Site: h�p://teledynelecroy.com/ Phone Support: 1-800-553-2769 Teledyne LeCroy (European Headquarters)

  • Page 192: Appendix

    6 Appendix Appendix A: Accessories T3AFG200-350-500 Series Function/Arbitrary Waveform Generator Accessories: Standard Accessories: • Calibration Report • Power cord that fits the standard of the destination country • USB Cable • BNC Coaxial Cable...

  • Page 193: Appendix B: Daily Maintenance And Cleaning

    Appendix B: Daily Maintenance and Cleaning Daily Maintenance Do not store or leave the instrument in where the display screen will be exposed to direct sunlight for a long period of time. CAUTION: To avoid damage to the instrument, do not expose it to spray, liquid, or solvent.
  • Page 194 © 2020 Teledyne Test Tools is a brand and trademark of Teledyne LeCroy Inc. All rights reserved. Specifications,prices,availability and delivery subject to change without notice. Product brand or brand names are trademarks or requested trademarks of their respective holders.

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