User Manual

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Arbitrary Function Generator

Module

AFG-125/225/125P/225P

USER MANUAL

GW INSTEK PART NO. 82DS-23042EA1

ISO-9001 CERTIFIED MANUFACTURER

Summary of content (82 pages)

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Arbitrary Function Generator Module AFG-125/225/125P/225P USER MANUAL GW INSTEK PART NO.
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August 2014 This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will company. The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice. Good Will Instrument Co.
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TABLE OF CONTENTS Table of Contents SAFETY INSTRUCTIONS ................................................... 4 GETTING STARTED ........................................................... 8 AFG-125/225/125P/225P Overview ........ 9 Panel Overview .................................... 12 DS2-FH1 Housing Installation ............. 14 Module Installation/Removal ............... 15 USB Configuration ............................... 17 AFG App Installation ........................... 18 Uninstalling the AFG App ...
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AFG-125/225 Series Options Manual SAFETY INSTRUCTIONS This chapter contains important safety instructions that should be followed when operating and storing the function generator. Read the following before any operation to ensure your safety and to keep the function generator in the best condition. Safety Symbols These safety symbols may appear in this manual or on the instrument. WARNING Warning: Identifies conditions or practices that could result in injury or loss of life.
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SAFETY INSTRUCTIONS Double Insulated Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Safety Guidelines General Guideline CAUTION Power Supply WARNING Fuse WARNING  Do not place heavy objects on the instrument.  Do not place flammable objects on the instrument.  Avoid severe impact or rough handling that may damage the function generator.
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AFG-125/225 Series Options Manual Cleaning the function generator Operation Environment  Disconnect the power cord before cleaning the function generator.  Use a soft cloth dampened in a solution of mild detergent and water. Do not spray any liquid into the function generator.  Do not use chemicals containing harsh products such as benzene, toluene, xylene, and acetone.
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SAFETY INSTRUCTIONS Disposal Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.
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AFG-125/225 Series Options Manual GETTING STARTED This chapter gives a brief overview of how to install the AFG-125/225/125P/225P module onto the GDS-2000A. AFG-125/225/125P/225P Overview .................................... 9 Model Lineup ......................................................................... 9 Main Features ....................................................................... 10 Accessories ............................................................................
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GETTING STARTED AFG-125/225/125P/225P Overview The AFG-125, AFG-225, AFG-125P and AFG-225P are arbitrary function generator modules for use with the GDS-2000A series DSOs. The options require the DS2-FH1 module extension bay to secure the module to the DSO. This user manual will explain how to become familiar with the arbitrary function generator modules. The Getting Started chapter will introduce the modules with an overview of the features and installation of the APP and accompanying PC software.
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AFG-125/225 Series Options Manual Main Features Performance  DDS signal generator  1μHz resolution over the full range  20ppm frequency stability  Arbitrary Waveform Capability 120 MSa/s sample rate 60 MSa/s repetition rate 4 k-point waveform length 4k waveform memory, 10 groups User-defined output DWR (Direct waveform reconstruction) capability PC waveform editing Features Interface Power Supply (AFG-125P/ 225P only 10  Sine, Square, Ramp, Pulse & Noise as standard waveforms  Interna
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GETTING STARTED Accessories Part Number Description DS2-FH1 Module extension bay GTL-254 USB A – USB A/B converter Quick start guide CD User manual Optional Accessories Part Number Description GPA-501 Power adapter GTL-246 USB Type A – Type B cable GTL-201A Ground lead 11
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AFG-125/225 Series Options Manual Panel Overview Front Panel Power Supply Status LEDs GND SYNC Output GD  WP C CH1 Output CH CH FIED V V V Negative Output Power Supply Status LEDs Negative Output GND    Positive Output CH2 Output These LEDs indicate the immediate status of the power supply function on the AFG-125/225: FIED V V   V GD 2.5V 2.5V output is on 3.5V 3.
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GETTING STARTED CH2 CH CH2 (Signal 2) output (AFG-225 only).  Rear Panel Vent USB Device Port Input Power  V INPUT  MX Vent Cooling vent. Interfaces with the GDS-2000A and can also provide power. USB Device Port Input Power V INPUT MX Input power source: DC 5V; 2A max.
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AFG-125/225 Series Options Manual DS2-FH1 Housing Installation Background Note Steps The DS2-FH1 consists of 2 housings that are attached to the feet on the underside of the case. Make sure the power is turned off before installing the AFG-125/225 module. 1. Slip the housing over the front of the feet on the GDS-2000A. 2. Make sure that the rear tab clips securely over the fan vent grid on the rear panel, as shown below. 1 2 3. The AFG-125/225 module is now ready to be installed.
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GETTING STARTED Module Installation/Removal Background Note The AFG-125/225 modules are installed into the area that is left between both of the DS2-FH1 housings. Make sure the power is turned off before installing the AFG-125/225 module. Installation Steps 1. Slide the module into the slot that was created between the DS2-FH1 housings. The front of the module should be facing forwards. 2. Make sure the module is secure. The module will click into place when it is inserted properly. 3.
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AFG-125/225 Series Options Manual Removal 1. At the rear of the housings are two tabs. Pull both tabs outwards. 2. The module can now be slid out from the housing (back to front).
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GETTING STARTED USB Configuration Background The USB Device port needs to be configured to provide power for the AFG-125/225 if an external power supply is not used. Steps 1. As shown previously in the “AFG-125/225 Module Installation/Removal” section, connect the GTL-254 USB cable. 2. Press the Utility key then I/O from the bottom menu. Utility 3. From the side menu press USB Device Port and select USB Power. The port will now supply power to the AFG-125/225.
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AFG-125/225 Series Options Manual AFG App Installation Background Install the AFG app as you would any application for the GDS-2000A series. The AFG app file (AFG.gz) can be found on the User Manual CD under the APP directory. For the latest files and information for applications, see the GW Instek website: www.gwinstek.com or contact your nearest distributor. Steps 1. Make sure the DS2-FH1 and AFG-125/225 are installed and turned on. Panel Operation 2.
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GETTING STARTED 5. The installation will complete in a few seconds. When finished a pop-up message will appear asking you to restart the GDS-2000A. 6. Restart the GDS-2000A. Uninstalling the AFG App Background The AFG app can be uninstalled from the TEST menu, like the other optional apps. Panel Operation 1. Press the Test key. T 1. Press the APP button from the bottom menu. 2. Use the Variable knob to select the AFG app. Up Down VRIBL 2. Press Uninstall on the side menu twice.
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AFG-125/225 Series Options Manual QUICK REFERENCE This chapter describes the menu tree for the AFG125/225. Options Menu Tree ......................................................... 21 Option Key ........................................................................... 21 Arbitrary Function Generator ............................................ 22 Arbitrary Function Generator – Signal 1/2 Setup........... 23 Arbitrary Function Generator – MOD part II ................ 24 Power Supply ..................
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QUICK REFERENCE Options Menu Tree Option Key Accesses the functions in the Option menu. O L z Logic Analyzer Function Gen 1 Function Gen 2 I/O AFG Function Gen 1 Function Gen 2 DVM AFG I/O Goes to the Logic Analyzer menu Goes to the Function Generator menu for the GEN 1 output Goes to the Function Generator menu for the GEN 2 output Goes to the options I/O menu Goes to the options AFG menu *Note: Any option that is not installed/turned on will be grayed-out.
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AFG-125/225 Series Options Manual Arbitrary Function Generator Set up the AFG-225/125 arbitrary function generator. Note: The Power Supply function is only available for the AFG-125P and AFG-225P The Dual Chan and Sync Setup functions are only available for the AFG-225 and AFG-225P. O Select Signal 1 Signal 2 Output On Off Load 50Ω High Z Phase -180.0º~180.
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QUICK REFERENCE Arbitrary Function Generator – Signal 1/2 Setup Setup the signal type for each channel. From the AFG Arbitrary Function Generator menu on page 22.
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AFG-125/225 Series Options Manual Arbitrary Function Generator – MOD part II Configures AM, FM, FSK, PM or SUM modulation. From the Arbitrary Function Generator – Signal 1/2 Setup – MOD menu on page 23. M M K PM UM Depth 0.0% ~ 120.0% AM Freq 0.002Hz ~ 20kHz Shape Sine Square Triangle UpRamp DnRamp Freq Dev DC~25MHz DC~15MHz (square) DC~1MHz (Ramp) FM Freq 0.
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OPERATION OPERATION Basic Operation .............................................................. 26 Entering the AFG Menu ..................................................... 26 State Display ......................................................................... 27 Selecting a Basic Waveform ................................................ 28 Turning the Output On ...................................................... 29 Dual Channel Tracking .......................................................
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AFG-125/225 Series Options Manual Basic Operation Entering the AFG Menu Background Like the other options for the GDS-2000A, the AFG option can be accessed via the front panel option key. Panel Operation 1. Press the Option key. 2. Press AFG from the bottom menu to enter the first level of the AFG menu.
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OPERATION State Display Background The state display function provides a visual display of the status of each channel and the function that is used. The state display is on by default. The state display is also used as a visual guide when editing/creating an ARB waveform. State Display Signal1 Status Signal2 Status Signal1 Function Settings Signal2 Function Settings Signal1 Function Visual Display Panel Operation Signal2 Function Visual Display 1.
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AFG-125/225 Series Options Manual Selecting a Basic Waveform Background The AFG-125/225 can output 5 different types of basic waveforms: Sine, Square, Pulse, Ramp, Noise. The basic waveforms can be output as is or they can be used as the baseband waveforms for the modulation functions or as the primary waveforms for the sweep and burst functions. Connection 1. The AFG-125/225 arbitrary function has 2 output channels, CH1 and CH2. Each output can be selected individually. 2.
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OPERATION Turning the Output On Background The AFG-125/225 can output 5 different types of basic waveforms: Sine, Square, Pulse, Ramp, Noise. The basic waveforms can be output as is or they can be used as the baseband waveforms for the modulation functions or as the primary waveforms for the sweep and burst functions. Connection 1. The AFG-125/225 arbitrary function has 2 output channels, CH1 and CH2. Each output can be selected individually. 2.
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AFG-125/225 Series Options Manual Sets the output phase relative to 0º. Synchronizes the phase of both channels on dual channel models. The signal will be output as soon as the output is turned on.
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OPERATION Dual Channel Tracking Background Dual Channel Functions As only the AFG-225 has dual channels, it has a number of tracking functions not available on the AFG-125. The tracking functions are listed below. Function Description Frequency Coupling Frequency coupling will couple the channel outputs by frequency. Frequency coupling can be achieved by frequency offset or by a frequency ratio. Amplitude Coupling Amplitude coupling will couple the both channel outputs by amplitude.
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AFG-125/225 Series Options Manual 2. From the side menu choose the relevant tracking function(s): Turns frequency coupling on and sets the type of frequency coupling: Offset: Sets frequency coupling as an offset. Ratio: Sets frequency coupling as a ratio. Turns amplitude coupling on or off. Ampl Cpl: OFF, ON Turns tracking on or off, or turns tracking on and inverts the output of the second output. Tracking: OFF, ON, INVERTED Press S_Phase to synchronize the phase of the both channels.
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OPERATION Recalling the Preset Settings Background Preset Settings Recalling the preset settings will effectively reset the settings to the factory defaults. Waveform Mode Sine Frequency 1kHz Amplitude 1.000Vpp Offset 0.0Vdc Phase 0.0º Load 50Ω Output Off ARB Off MOD Off Sweep Off Burst Off Frequency Coupling* Off Amplitude Coupling* Off Tracking* Off *Only applicable to the AFG-225. Steps 1. From the first level of the AFG menu, press UTIL. 2. Press Preset.
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AFG-125/225 Series Options Manual Sync Setup Background The sync output signal is output from the SYNC port on the front panel. The sync output signal is based on either the channel 1 or channel 2 output signals. Each periodic type of waveform output function has an associated sync output signal. The characteristics of the sync output depend on the selected signal source. Sync Signal Output Sine, Square, Pulse, For these types of waveforms, Ramp Source the sync output is a square wave pulse.
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OPERATION MOD waveform Source FM output SYNC output The sync output is a positive pulse for the positive transition of the modulating waveform and low for the negative transition. The signal is a TTL level signal. 0V 0V Arbitrary Waveform The ARB function can output Source either carrier or marker signals. Carrier: The sync output is a single TTL positive pulse for the positive transition of the ARB waveform and low for the negative transition.
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AFG-125/225 Series Options Manual Carrier ARB output SYNC output 0V 0V Marker ARB output SYNC output Sweep Source 0V 0V The sweep function can output either carrier or marker signals. Carrier: The sync signal output is a positive TTL level pulse for the positive transition of the sweep waveform and low for the negative transition.
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OPERATION Carrier 0V Sweep output SYNC output 0V Marker 0V Sweep output Marker frequency SYNC output 0V Burst Source Like the sweep function, the burst function can output Carrier or Marker signals from the SYNC output. Carrier: The sync signal output is a positive TTL level pulse for the positive transition (0V and above) of the burst waveform and low for the negative transition.
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AFG-125/225 Series Options Manual Carrier FSK output 0V SYNC output 0V Marker FSK output 0V SYNC output Steps 0V 1. From the first level of the AFG menu, press UTIL and then press Sync Setup on the side menu. 2. From the side menu choose the sync setting: The Sync function will turn the sync output on for all waveforms except for noise. (Note: If Marker is turned on in the Sweep function, the Sync On setting will be overridden. Selects the source signal on which to base the sync signal.
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OPERATION The polarity can be set to Normal or Inverted. Polarity: Note Normal, Inverted The marker mode can only be used for the ARB and mod waveforms. For the Sweep function, the marker output must be turned on in the Sweep function menu. It cannot be activated in the Sync Setup menu. See page 51 to turn the marker option on.
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AFG-125/225 Series Options Manual Modulation AM Modulation Background The AM Modulation function can set the carrier frequency (AM Freq), amplitude modulation depth (Depth) and carrier waveform (Shape). Steps 1. Set the carrier waveform and frequency. You can set the carrier waveform and frequency in the Selecting a Basic Waveform section. Page 26 2. From the first level of the AFG menu, press the Signal 1 Setup or Signal 2 Setup key to select the signal source. 3. From the bottom menu press MOD. 4.
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OPERATION Sets the amplitude modulation depth: 0~ 120% Sets the AM frequency: 2 mHz~20kHz. Sets the carrier waveform shape: Sine, Square, Triangle, Upramp, Dnramp. 6. See page 29 to set the output settings and turn the output on.
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AFG-125/225 Series Options Manual FM Modulation Background The FM Modulation function can set the carrier frequency (FM Freq), frequency deviation (FM DEV) and carrier waveform (Shape). Steps 1. Set the carrier waveform and frequency. You can set the carrier waveform and frequency in the Selecting a Basic Waveform section. Page 26 2. From the first level of the AFG menu, press the Signal 1 Setup or Signal 2 Setup key to select the signal source. 3. From the bottom menu press MOD. 4.
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OPERATION Sets the frequency deviation: DC~25MHz DC~15MHz(square) DC~1MHz (Ramp) Sets the FM frequency: 2mHz~20kHz. Sets the carrier waveform shape: Sine, Square, Triangle, Upramp, Dnramp. 6. See page 29 to set the output settings and turn the output on.
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AFG-125/225 Series Options Manual FSK Modulation Background The FSK Modulation function can set the hop frequency (FSK Hop) and the frequency-shift keying rate (FSK Rate). FSK Modulation essentially jumps between the carrier frequency and the hop frequency at a rate determined by the FSK rate frequency. Steps 1. Set the carrier waveform and frequency. You can set the carrier waveform and frequency in the Selecting a Basic Waveform section. Page 26 2.
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OPERATION Sets the hop frequency: 1μHz~25MHz (Sine) 1μHz~15MHz (Square, Pulse) 1μHz~1MHz (Ramp) Sets the FSK rate: 2mHz~100kHz. 6. See page 29 to set the output settings and turn the output on.
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AFG-125/225 Series Options Manual PM Modulation Background The PM Modulation function can set the phase modulation frequency (PM Freq), phase deviation (Phase Dev) and the PM shape (Shape). The phase deviation of the carrier waveform deviates from a reference phase value in proportion to changes in the modulating waveform. Steps 1. Set the carrier waveform and frequency. You can set the carrier waveform and frequency in the Selecting a Basic Waveform section. Page 26 2.
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OPERATION 5. Select the PM parameters from the side menu: Sets the phase deviation: 0º ~ 360º Sets the phase modulation frequency: 2mHz ~ 20kHz Sets the PM wave shape: Sine, Square, Triangle, UpRamp, DnRamp. 6. See page 29 to set the output settings and turn the output on.
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AFG-125/225 Series Options Manual SUM Modulation Background The SUM Modulation function can set the SUM amplitude (SUM Ampl) the carrier frequency (SUM Freq) and carrier waveform (Shape). In general SUM modulation adds a modulating signal to a carrier wave. Typically, sum modulation is used to add noise to a carrier wave. The modulating signal is added as a percentage of the carrier amplitude. Steps 1. Set the carrier waveform and frequency.
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OPERATION 5. Select the SUM parameters from the side menu: Sets the SUM amplitude (relative to the carrier): 0.0% ~ 100.0% Sets SUM modulation frequency: 2mHz ~ 20kHz Sets the SUM wave shape. 6. See page 29 to set the output settings and turn the output on.
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AFG-125/225 Series Options Manual Sweep Sweep Background The AFG-125/225 can perform a sweep for sine, square or ramp waveforms. In Sweep mode, the function generator will sweep from a start frequency to a stop frequency. The sweep can be performed in a linear or logarithmic fashion. The AFG-125/225 can also output a TTL signal from the SYNC output when the marker function is turned on. Steps 1. Set the carrier waveform and frequency.
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OPERATION 5. Select the sweep parameters from the side menu: Selects the type of sweep: logarithmic or linear. Sets the start frequency*: 1μHz ~ 25MHz 1μHz ~ 15MHz (Square) 1μHz ~ 1MHz (Ramp) Sets the Stop frequency*: 1μHz ~ 25MHz 1μHz ~ 15MHz (Square) 1μHz ~ 1MHz (Ramp) Press to access the remaining sweep settings, shown below: Sets the sweep time: 1ms ~ 500s. Sets the Span*: 1μHz ~ 25MHz 1μHz ~ 15MHz (Square) 1μHz ~ 1MHz (Ramp) Sets the center frequency*.
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AFG-125/225 Series Options Manual 7. Press Frequency and set a marker frequency. The marker frequency cannot be lower than the center frequency. 1μHz ~ 25MHz 1μHz ~ 1MHz (Ramp) 8. See page 29 to set the output settings and turn the output on. Page 29 Example Sweep Waveform (CH1) with marker output (CH2).
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OPERATION Burst Burst Waveform Background The function generator can create a waveform burst with a designated number of cycles. Burst mode supports sine, square and ramp waveforms. Steps 1. Set the carrier waveform and burst Page 26 frequency. You can set the carrier waveform and burst frequency in the Selecting a Basic Waveform section. 2. From the first level of the AFG menu, press the Signal 1 Setup or Signal 2 Setup key to select the signal source. 3. From the bottom menu press Burst. 4.
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AFG-125/225 Series Options Manual 6. Select the N Cycle parameters from the side menu: Sets the number of burst cycles* : 1~ 65,535, infinite. Sets the starting phase of the burst waveform. Sets the period* length in seconds for the burst waveform. Note *The Period setting will affect the number of cycles that can be chosen for any given frequency. The relationship is shown in the following equation: Burst Cycle < (Burst Period x Wave Frequency) Trigger Settings 7. Press Trigger set from the side menu.
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OPERATION Example Burst Waveform 55
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AFG-125/225 Series Options Manual ARB Loading a Preset ARB Waveform Background The AFG-225 can load a number of different waveforms as an arbitrary waveform file: CH1~CH4, Ref1~Ref4, Wave1~Wave20, a previously saved waveform (LSF and fast CSV format*), a previously created ARB waveform or one of the 66 preset ARB waveforms**. The preset waveforms are categorized into Common, Math, Window and Engineer waveforms, as shown in the table below. * See the DSO user manual for save file formats.
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OPERATION Airy, Bessel, Betainc, Gamm, Legendre, Neumann Steps 1. From the first level of the AFG menu, press the Signal 1 Setup or Signal 2 Setup key to select the signal source. 2. From the bottom menu press ARB. 3. From the side menu turn ARB On. Note The function generator also will not allow ARB to be turned on when sweep, burst or a modulation function is active. Turn off any other active modes before using ARB mode. 4. Press Load from the side menu. 5.
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AFG-125/225 Series Options Manual From File: LSF, Fast CSV, User Preset, Common, Math, Window, Engineer If a previously saved waveform or predefined waveform type was chosen above, use the File Utilities to select the desired ARB waveform. Press Recall Now to load the ARB waveform. A message will appear on the screen when the ARB waveform is successfully recalled.
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OPERATION Creating/Editing a Preset ARB Waveform Background The AFG-125/225 has a number of methods to create and edit arbitrary waveforms. The ARB waveforms can have a maximum of 4096 (0~4095) points in length and 1023 (0±511) points in amplitude. Editing Methods Point/Line: Creates a vertical line of a user-defined length and amplitude. Diagonal: Creates a diagonal line of a user-defined length and amplitude. Scale: Scales the full-scale of the ARB waveform.
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AFG-125/225 Series Options Manual 2. From the bottom menu press ARB. 3. From the side menu turn ARB On. Note The function generator also will not allow ARB to be turned on when sweep, burst or a modulation function is active. Turn off any other active modes before using ARB mode. 4. Press Edit from the side menu. Point/Line Editing 5. Press Edit Method and choose Point Line. 6. Press Action to begin editing the waveform using the Point/Line method. 7.
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OPERATION Press Data to set the amplitude of the point/line. Data -511 ~ 0 ~ +511 When the point/line has been edited, press Preview to view the edited line. Press Undo to cancel the point/line edit. Press Done to confirm and save the point/line edit. Example Figure showing a horizontal line (black highlight) Diagonal Editing 1. Press Edit Method and choose Diagonal. 2. Press Action to begin editing the waveform using the Diagonal method. 3.
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AFG-125/225 Series Options Manual Press Addr1/Data1 to set the first data point for the diagonal line. Press once to set the Addr1, press again to set Data1 (amplitude). Addr1 range: 0 ~ 4095 Data1 range: ±511 Press Addr2/Data2 to set the second data point for the diagonal line. Press once to set the Addr2, press again to set Data2 (amplitude). Addr2 range: 0 ~ 4095 Data2 range: ±511 When the line has been edited, press Preview to view the edited line. Press Undo to cancel the line edit.
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OPERATION Scale Editing 1. Press Edit Method and choose Scale. 2. Press Action to begin editing the waveform using the Scale method. 3. Use the side menu to set the scale: The scale function sets the vertical scaling factor* for the whole ARB waveform. Scale 0.1 ~ 10X Example Figure of 2.0X scaling. Notice that the waveform is clipped at the bottom. Note Copy / Paste * If any data points that exceed a magnitude of ±511 will be clipped. 1. Press Edit Method and choose Copy /Paste.
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AFG-125/225 Series Options Manual 2. Press Action to enter the Copy/Paste menu. 3. Use the side menu to copy a section of the ARB waveform: Press Start* to set the start address of the section you want to copy. Start range: 0 ~ 4095 Press Length* to set the length of the section you wish to copy. Length range 1~ 4096 Press Paste To to choose the position to paste the copied section of waveform**. Paste range 0~ 4095 When the copy and paste areas have been selected, press Preview to view the result.
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OPERATION Example Figure showing the copied section (black) and the pasted section (red bars). Note * The maximum start address depends on the Length setting: Max Start = 4096 – Length The maximum length depends on the start address set above: Max Length = 4096 – Start ** You cannot paste over an area that was originally copied. For example, if you copy from points 100 ~ 200, you cannot paste that to points 150 ~ 250.
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AFG-125/225 Series Options Manual Sets the start address of the section of the ARB waveform to be cleared. Start range 0 ~ 4095 Sets the length of the section of the ARB waveform to be cleared. Length range 1 ~ 4096 Press Done to confirm and then clear the selected section of the ARB waveform. Press Done to clear the whole ARB waveform instantly. Example Figure showing the cleared section of the waveform.
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OPERATION Setting ARB Output Length Background The Output Confirm menu allows the user to specify a section of the ARB waveform to be output. The length of the outputted section will directly affect the possible frequency or rate of the ARB waveform. See page 68 for details. Steps 1. From the ARB menu press Output Confirm. 2. Select the section of the ARB waveform that you wish to have output from the side menu: Press Start* to set the start address for the output section.
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AFG-125/225 Series Options Manual Note * The maximum length depends on the start address setting. The maximum length = 4096 – Start address. 3. Press Confirm to set the chosen output section. 4. See page 29 to set the output settings and turn the output on. Page 29 Setting ARB Frequency, Rate, Amplitude & Offset Background The rate, frequency, amplitude and (amplitude)offset output parameters can also be set. Steps 1. From the ARB menu press more 1 of 2. 2.
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OPERATION Sets the rate of the ARB waveform*. This will set the number of times the ARB waveform will be output each second. Note *The frequency setting is inversely proportional to the Rate setting. The frequency and rate settings are also directly affected by the length of the output ARB waveform. See page 67 for setting the output length of the ARB waveform. **The amplitude and offset are linked. Together the amplitude and offset cannot exceed 2.5Vpp (into 50Ω). 3.
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AFG-125/225 Series Options Manual Power Supply Function Using the Power Supply Function (AFG-125P & AFG-225P only) Background The AFG-125P and AFG-225P have an additional power supply function. The power supply has three fixed output levels: 2.5V, 3.3V, 5V. Steps 1. Press Power Supply from the first level of the AFG menu. 2. Press Power to turn the power supply output on. 3. Press Voltage to select one of the fixed output levels. Status LEDs on the front panel will light up appropriately.
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APPENDEX APPENDEX Dimensions 30.7 106.9 3.5 223.
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AFG-125/225 Series Options Manual Preset ARB Waveform Common Function Description Function Description ABSATAN y=|atan(x)| The absolute of atan(x) RECTPULS Sampled aperiodic rectangle ABSSIN y=|sin(x)| The absolute of sin(x) ROUNDHAF y=sqrt(1-x^2) Half round function ABSSINEH y=sin(x),0
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APPENDEX ATTALT y=e(-x).
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AFG-125/225 Series Options Manual HAVERSIN =(1-cos(x))/2 Haversine function TRAPEZIA Piecewise function NEGRAMP y=-x Line segment TRIPULS Sampled aperiodic triangle N_PULSE Negative pulse Math Function ARCCOS 74 Description Basic trigonometric function Function EXPORISE Description Exponential rise
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APPENDEX ARCCOT Basic trigonometric function GAUSS A waveform representing a gaussian bell curve ARCCSC Basic trigonometric function LN Logarithm function ARCSEC Basic trigonometric function LORENTZ The derivative of the lorentz function y=1/(k*x^2+1) ARCSIN Basic trigonometric function SEC Basic trigonometric function ARCSINH Basic trigonometric function SECH Basic trigonometric function 75
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AFG-125/225 Series Options Manual ARCTAN Basic trigonometric function SINEC y=sin(x)/x ARCTANH Basic trigonometric function SINH Basic trigonometric function COSH Basic trigonometric function SQRT y=sqrt(x) COT Basic trigonometric function TAN Basic trigonometric function CSC Basic trigonometric function TANH Basic trigonometric function 76
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APPENDEX DLORENTZ The derivative of the lorentz function. y=-2x/(k*x^2+1) EXPOFALL Exponential decay XSQUARE Parabola Window Function Description Function Description BARTHWIN Modified Bartlett-Hann window HAMMING The Hamming window function BARTLETT HANN The Bartlett window is very similar to a triangular window as returned by the TRIANG function.
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AFG-125/225 Series Options Manual BLACKMAN The Blackman window function HANNING The Hanning window function BOHMWIN The Bohman window function KAISER The Kaiser window function CHEBYSHE The Chebyshev window function TRIANG The Triang window function FLATTWIN The Flattopwin window function TUKEYWIN The Tukey window function Engineer Function Description Function Description AIRY The Airy function GAMM The Gamma function 78
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APPENDEX BESSEL The Bessel function LEGENDRE Associated Legendre functions BETA The Beta function NEUMANN The Neumann function 79
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AFG-125/225 Series Options Manual Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. No. 7-1, Jhongsing Rd, Tucheng Dist., New Taipei City 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No. 69 Lushan Road, Suzhou New District Jiangsu, China.
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INDEX INDEX Accessories ................................. 11 AFG menu .................................. 26 App installation ......................... 18 App uninstallation ..................... 19 Appendix .................................... 71 ARB Amplitude ..................................... 68 Clear................................................ 65 copy/paste..................................... 63 diagonal line .................................. 61 Editing .........................................
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AFG-125/225 Series Options Manual USB configuration ..................... 17 82 Warning symbol ..........................