Scientific SMG2000 Series User Manual
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Scientific SMG2000 Series User Manual

Function/arbitrary waveform generator
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Function/Arbitrary Waveform
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SMG2042/SMG2082/SMG2122
User Manual

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Summary of Contents for Scientific SMG2000 Series

  • Page 1 Function/Arbitrary Waveform Generator SMG2042/SMG2082/SMG2122 User Manual...
  • Page 2 Information in this manual supersedes all corresponding previous released material. Scientific continues to improve products and reserves rights to amend part or all of the specifications, procedures, equipment at any time without notice. Rev 1.00/ 0116...

  • Page 3: Table Of Contents

    Scientific Table of Contents General Safety Summary ................5 Introduction of SMG2000 ................7 Quick Start ....................8 Handle Adjustment ..............9 The Front/Rear Panel ..............10 To Set a Waveform ..............13 To Set Modulation/Sweep/Burst..........17 To Turn On/Off Output ..............19 To Use Digital Input ..............
  • Page 4 Scientific 2.12.2 File Type ................ 82 2.12.3 File Operation ..............83 2.13 To Set Utility Function ..............86 2.13.1 System Settings ............. 88 2.13.2 Test/Cal ................95 2.13.3 Frequency Counter ............. 100 2.13.4 Output ................103 2.13.5 CH Copy/Coupling ............105 2.13.6...

  • Page 5: General Safety Summary

    Scientific 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 the qualified technician can service the instrument.
  • Page 6 Scientific Safety Terms and Symbols Terms used on the instrument. Terms may appear on the instrument: DANGER: Indicates an injury or hazard that may immediately happen. WARNING: Indicates an injury or hazard that may not immediately happen. CAUTION: Indicates that a potential damage to the instrument or other property might occur.

  • Page 7: Introduction Of Smg2000

    Generators: SMG2042, SMG2082 SMG2122. SCIENTIFIC‘s SMG2000 is a series of dual-channel function/arbitrary waveform generators with specifications of up to 120MHz maximum bandwidth, 1.2GSa/s sampling rate and 16-bit vertical resolution. The proprietary TrueArb & EasyPulse techniques help to solve the weaknesses inherent in traditional DDS generators when generating arbitrary, square and pulse waveforms.

  • Page 8: Quick Start

    Scientific 1 Quick Start This chapter covers the following topics: Handle Adjustment The Front/Rear Panel To Set a Waveform To Set Modulation/Sweep/Burst To Turn On/Off Output To Use Digital Input To Use Common Function Keys 8/150 User manual SMG2000...

  • Page 9: Handle Adjustment

    Scientific Handle Adjustment To adjust the handle position of SMG2000, 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 User manual SMG2000...

  • Page 10: The Front/Rear Panel

    Scientific The Front/Rear Panel When you get a new SMG2000, first you need to understand how to operate the front/rear panel correctly. This chapter will make a brief introduction and description for the operation and functions of the front/rear panel.
  • Page 11 Scientific 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/Output Counter In/Out Earth Terminal AC Power Supply LAN Interface USB Device...
  • Page 12 Scientific Touch Screen Display SMG2000 can only display parameters and waveform of one channel at a time. The picture below shows the interface when CH1 chooses sine waveform. The information displayed may vary depending on the function selected. The entire screen of the SMG2000 is a touch screen. You can use your figure or touch pen to control the instrument.

  • Page 13: To Set A Waveform

    Scientific To Set a Waveform Press Waveforms to enter the menu as Figure 1-5 shows. The exercise below will help you be familiar with the waveform selection settings. Figure 1-5 Waveform Selections 1. Press Waveforms key and then press Sine softkey. The generator can generate sine signal with frequency from 1µHz to 120MHz.
  • Page 14 Scientific 2. Press Waveforms key and then press Square softkey. The generator can generate square signal with frequency from 1µHz to 25MHz and variable duty cycle. By setting Frequency/Period, Amplitude/High level, Offset/Low level, Phase and DutyCycle, a square signal with different parameters can be generated.
  • Page 15 Scientific 4. Press Waveforms key and then press Pulse softkey. The generator can generate pulse signal with frequency from 1µHz to 25 MHz and variable pulse width rise/fall time. setting Frequency/Period, Amplitude/High level, Offset/Low level, PulWidth/Duty, Rise/Fall and Delay, a pulse signal with different parameters can be generated.
  • Page 16 Scientific Press Waveforms key and then press Page 1/2, last press the DC softkey. The generator can generate DC signal with level up to ±10V into HighZ load or ±5V into 50 load. Figure 1-11 DC Display Interface 7. Press Waveforms key and then press Page 1/2, last press the Arb softkey.

  • Page 17: To Set Modulation/Sweep/Burst

    Scientific 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 you be familiar with these functions. Figure 1-13 Modulate/Sweep/Burst Key 1.
  • Page 18 Scientific Figure 1-15 Sweep Waveform Display Interface 3. Press Burst, the Burst function will be enabled. Burst signal for sine, square, ramp, pulse or arbitrary waveforms can be generated. Start Phase ranges from 0° to 360° and Burst Period ranges from 1µs to 1000s.

  • Page 19: To Turn On/Off Output

    Scientific 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 control 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 turned on.

  • Page 20: To Use Digital Input

    Scientific To Use Digital Input As shown in Figure 1-18, there are three sets of keys on the front panel, which are arrow keys, knob and numeric keyboard. The instructions below will help you be familiar with the digital input function.

  • Page 21: To Use Common Function Keys

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

  • Page 22: Front Panel Operations

    Scientific 2 Front Panel Operations Up to now, you have got a brief understanding about SMG2000 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 23: To Set Sine Signal

    Scientific To Set Sine Signal Press Waveforms key to call the wave operation and then press the Sine softkey. The sine waveform parameters are set by using the sine operation menu. The parameters of sine waveforms include frequency/period, amplitude/high level, offset/low level and phase. Different sine signals are generated by setting these parameters.
  • Page 24 Scientific To Set the Frequency/Period Frequency is one of the most important parameters of basic waveforms. For different instrument model and waveform, the setting ranges of frequency are different. For detailed information, please refer to “ SMG2000 Datasheet”. The default frequency is 1kHz.
  • Page 25 Scientific To Set the Amplitude The amplitude setting range is limited by the “Load” and “Frequency/Period” settings. For detailed information, please refer to “SMG2000 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 on.
  • Page 26 Scientific To Set the Offset The offset setting range is limited by the “ Load” and “ Amplitude/HighLevel” settings. For detailed information, please refer to “SMG2000 Datasheet”. The default value is 0Vdc. 1. Press Waveforms → Sine → Offset, to set the offset.
  • Page 27 Scientific To Set the Phase 1. Press Waveforms → Sine → Phase, to set the phase. The Phase 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 28: To Set Square Signal

    Scientific To Set Square Signal Press Waveforms key to call the wave operation, and press the Square softkey. The square waveform parameters are set by using the Square operation menu. parameters of square waveforms include frequency/period, amplitude/high level, offset/low level, phase and duty. As shown in Figure 2-6, select DutyCycle.
  • Page 29 Scientific To Set the Duty Cycle Duty Cycle: The percentage that the high level takes up the whole period. The duty cycle setting range is limited by the ―Frequency/Periodǁ setting. For detailed information, please refer to “SMG2000 Datasheet”. The default value is 50%.

  • Page 30: To Set Ramp Signal

    Scientific To Set Ramp Signal Press Waveforms key to call the wave operation, 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 31 Scientific 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 on.

  • Page 32: To Set Pulse Signal

    Scientific To Set Pulse Signal Press Waveforms key to call the wave operation, 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 33 Scientific To Set the Pulse Width/Duty Pulse width is defined as the time from the 50% threshold of a rise 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 34 Scientific 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 35 Scientific 2. Input the desired rise edge Use the numeric keyboard to input the parameter value directly, and press the corresponding key to select the parameter unit. Or you can use the arrow keys to select the digit you want to edit, and then use the knob to change its value.

  • Page 36: To Set Noise Signal

    Scientific To Set Noise Signal Press Waveforms key to call the wave operation, 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...
  • Page 37 Scientific To Set the Stdev 1. Press Waveforms → Noise → Stdev, to set the stdev. The stdev 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 38 Scientific 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 39: To Set Dc Signal

    Scientific To Set DC Signal Press Waveforms → Page 1/2 → DC, to enter the following interface. Please note that there is an ‘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 signal.

  • Page 40: To Set Arbitrary Signal

    Scientific To Set Arbitrary Signal The Arb signal consists of two types: the system built-in waveform and the user-defined waveform. Built-in waveforms are stored in the internal non-volatile memory. It also allows users to edit the arbitrary waveform with 8 to 8M data points, namely 8pts to 8Mpts.
  • Page 41 Scientific TrueArb Choose Waveforms → Page 1/2 → Arb → Arb Mode and select the “TrueArb” output mode. The parameters include sampling rate/frequency, amplitude/high level, offset/ low level and phase. Figure 2-19 Arb Parameters Display Interface (TrueArb) Table 2-7 Menu Explanations of Arb Waveform (Page 1/2)
  • Page 42 Scientific To Set the Sampling Rate 1. Press Waveforms → Page 1/2 → Arb → TureArb → Srate, to set the sampling rate parameter. The sampling rate shown on the screen when the instrument is powered on is the default value or the set value of last power on. When setting the function, if the current value is valid for the new waveform, it will be used sequentially.
  • Page 43 Scientific To select the built-in Arbitrary Waveform There are plenty of built-in Arbitrary Waveforms and user-defined Arbitrary Waveforms inside the generator. To select one of them, follow the instructions below. 1. 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 44 Scientific Table 2-8 Built-in Waveforms Item Sub-item Waveform Explanation Common Common StairUp Stair-up waveform StairDn Stair-down waveform StairUD Stair-up and down waveform Trapezia Trapezia waveform Ppulse Positive pulse Npulse Negative pulse UpRamp UpRamp waveform DnRamp DnRamp waveform SineTra Sine-Tra waveform...
  • Page 45 Scientific Item Sub-item Waveform Explanation Dlorentz Dlorentz function Haversine Haversine function Lorentz Lorentz function Gauspuls Gauspuls signal Gmonopuls Gmonopuls signal Tripuls Tripuls signal Weibull Weibull distribution LogNormal LogNormal Gaussian distribution Laplace Laplace distribution Maxwell Maxwell distribution Rayleigh Rayleigh distribution Cauchy...
  • Page 46 Scientific Item Sub-item Waveform Explanation Gamma Gamma signal StepResp Step-response signal BandLimited Bandwidth-limited signal CPulse C-Pulse CWPulse CW pulse GateVibr Gate self-oscillation signal LFMPulse Linear FM pulse MCNoise Mechanical construction noise Win/Trigo Window Hamming Hamming window Hanning Hanning window Kaiser...
  • Page 47 Scientific Item Sub-item Waveform Explanation Coth Hyperbolic cotangent Csch Hyperbolic cosecant SecH Hyperbolic secant SinH Hyperbolic sine SinInt Integral sine TanH Hyperbolic tangent ACosH Arc hyperbolic cosine ASecH Arc hyperbolic secant ASinH Arc hyperbolic sine ATanH Arc hyperbolic tangent ACsch...
  • Page 48 Scientific Item Sub-item Waveform Explanation SquareDuty44 Square waveform with 44% duty SquareDuty46 Square waveform with 46% duty SquareDuty48 Square waveform with 48% duty SquareDuty50 Square waveform with 50% duty SquareDuty52 Square waveform with 52% duty SquareDuty54 Square waveform with 54% duty...
  • Page 49 Scientific Item Sub-item Waveform Explanation ECG1 Electrocardiogram 1 ECG2 Electrocardiogram 2 ECG3 Electrocardiogram 3 ECG4 Electrocardiogram 4 ECG5 Electrocardiogram 5 ECG6 Electrocardiogram 6 ECG7 Electrocardiogram 7 ECG8 Electrocardiogram 8 ECG9 Electrocardiogram 9 ECG10 Electrocardiogram 10 ECG11 Electrocardiogram 11 ECG12 Electrocardiogram 12...
  • Page 50 Scientific 2. To Select the Stored Waveform Choose Waveforms → Page 1/2 → Arb → Arb Type → Stored Waveforms to enter the following interface, as shown in Figure 2-22. Figure 2-22 Stored Waveform Display Interface Rotate the knob or touch the screen to choose the desired waveform. Then press Recall to recall the corresponding waveform.

  • Page 51: To Set Harmonic

    Scientific To Set Harmonic SMG2000 can be used as a harmonic generator to output harmonic with specified order, amplitude and phase. According to Fourier transform, periodic time domain waveform is the superposition of a series of sine waveforms as shown in the equation below: Generally, component with f1 frequency is called fundamental waveform, f1 is fundamental waveform frequency, A1 is fundamental waveform amplitude, φ1...
  • Page 52 Scientific Function Settings Explanations menu Set the harmonic type to “odd”, “ever” or “all”. Type 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 53 Scientific 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 54: To Set Modulation Function

    Scientific To Set Modulation Function Use the Mod key to generate modulated waveform. SMG2000 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 55 Scientific 2.9.1 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 56 Scientific To Select Modulation Source SMG2000 can accept modulating signal from internal or external modulation source. Press Source select “ Internal” → → “ External” modulation source. The default is “Internal”. 1. Internal Source When internal AM modulation source is selected, press Shape to select Sine, Square, Triangle, UpRamp, DnRamp, Noise or Arb as modulating waveform.
  • Page 57 Scientific To Set Modulation Depth Modulation depth expressed as a percentage indicates the amplitude variation degree. AM modulation depth varies from 1% to 120%. Press AM Depth to set the parameter. In the 0% modulation, the output amplitude is the half of the set one.

  • Page 58: Dsb-Am

    Scientific 2.9.2 DSB-AM 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 Menu Type DSB-AM DSB Amplitude modulation.
  • Page 59 Scientific 2.9.3 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.
  • Page 60 Scientific To Set Frequency Deviation Press FM Dev to highlight the parameter, and then use the numeric keyboard or arrow keys and knob to input the desired value. The deviation should be equal to or less than the carrier frequency.
  • Page 61 Scientific 2.9.4 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 62 Scientific To Set Phase Deviation Press Phase Dev to highlight the parameter, and then use the numeric keyboard or arrow keys and knob to input the desired value. Use the numeric keyboard or arrow keys and knob to input the desired value.

  • Page 63: Fsk

    Scientific 2.9.5 FSK The FSK is Frequency Shift Keying, the output frequency of which switches between two preset frequencies (carrier frequency and the hop frequency). Press Mod → Type → FSK, the parameters of FSK modulation are shown in Figure 2-28.
  • Page 64 Scientific Use the numeric keyboard or arrow keys and knob to input the desired value. The key frequency ranges from 1mHz to 1MHz. When external modulation source is selected, this menu is hidden. To Set Hop Frequency The range of hop frequency depends on the carrier currently selected. Press Hop Freq to highlight the parameter, and then use the numeric keyboard or arrow keys and knob to input the desired value.

  • Page 65: Ask

    Scientific 2.9.6 ASK When using ASK (Amplitude Shift Keying), you should configure carrier frequency and key frequency. The key frequency is the shift rate of modulated waveform amplitude. Press Mod → Type → ASK, the parameters of ASK modulation are...

  • Page 66: Psk

    Scientific 2.9.7 PSK When using PSK (Phase Shift Keying), you should 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 67: Pwm

    Scientific 2.9.8 PWM In PWM (Pulse Width Modulation), the pulse width of 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.
  • Page 68 Scientific To Set Pulse Width/Duty Deviation Width Deviation represents the variation of the modulated waveform pulse width relative to the original pulse width. Press Width Dev to highlight the parameter, and use the numeric keyboard or arrow keys and knob to input the desired value, as shown in the Figure 2-32.
  • Page 69 Scientific Figure 2-33 Duty Deviation Setting Interface The duty deviation cannot exceed the current pulse duty. The duty deviation is limited by the minimum duty and current edge time setting. Duty deviation and width deviation are correlative. Once a parameter is changed, the other will be automatically changed.

  • Page 70: To Set Sweep Function

    Scientific 2.10 To Set Sweep Function In the sweep mode, the generator steps from the start frequency to the stop frequency in the sweep time you specify. The waveforms that support sweep include sine, square, ramp and arbitrary. Press Sweep key to enter the following menu. Set the waveform parameters by using the operation menu.
  • Page 71 Scientific Figure 2-35 Setting Interface of Sweep (Page 2/2) Table 2-19 Menu Explanations of Sweep (Page 2/2) Function Settings Explanation Menu Linear Set the sweep with linear profile. Type Set the sweep with logarithmic profile. Sweep upward. Direction Down Sweep downward.
  • Page 72 Scientific Center Frequency and Frequency Span Center Frequency = (|Start Frequency + Stop Frequency|)/2 Frequency Span = Stop Frequency – Start Frequency Sweep Type SMG2000 provides “ Linear” and “ Log” sweep profiles and the default is “Linear”. Linear Sweep In linear sweep, the output frequency of the instrument varies linearly in the way of “...
  • Page 73 Scientific Figure 2-37 Log Sweep Sweep Trigger Source The sweep trigger source could be internal, external or manual. The generator will generate a sweep output when a trigger signal is received and then wait for the next trigger source. 1. Internal Trigger Choose Source →...

  • Page 74: To Set Burst Function

    Scientific 2.11 To Set Burst Function Burst function can generate versatile waveforms in burst, which can last specific times of waveform cycle (N-Cycle mode), or when external gated signals (Gated mode) is applied. Any waveform (except DC) could be used as the carrier, but noise can only be used in Gated mode.
  • Page 75 Scientific 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. Cycles Set the number of the bursts in N-Cycle. Infinite Set the number of the bursts in N-Cycle to be infinite.
  • Page 76 Scientific 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 Delay Set the delay time before the burst starts. Disable trigger out. Trig Out Enable trigger out. Page Return to the previous page.
  • Page 77 Scientific Figure 2-40 Infinite Burst Interface Gated In gated mode, the generator controls the waveform output according to the gate signal level. When the gated signal is “true”, the generator outputs a continuous waveform. When the gated signal is “false”, the generator first completes the output of the current period and then stops.
  • Page 78 Scientific Table 2-23 Menu Explanations 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 79 Scientific Delay Set the time delay between the trigger input and the start of the N-Cycle burst. Burst Trigger Source The burst trigger source could 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 80: To Store And Recall

    Scientific 2.12 To Store and Recall SMG2000 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 Table 2-24 Menu Explanations of Save and Recall...

  • Page 81: Storage System

    Scientific 2.12.1 Storage System SMG2000 provides an internal non-volatile memory (C Disk) and a USB Host interface for external memory. 1. Local (C:) Users can store instrument states and arbitrary waveform files to C Disk. 2. USB Device (0:) There is a USB Host interface on the left of the front panel, which permits users to store/recall waveforms or update the firmware version by U-Disk.

  • Page 82: File Type

    Scientific Browse Use the knob to shift between the directories or click the corresponding location on the screen to choose Local (C:) or USB Device (0:). Choose Browse, press the knob or click the selected folder to open the current directory.

  • Page 83: File Operation

    Scientific 2.12.3 File Operation To Save the Instrument State Users are allowed to store the 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 84 Scientific Table 2-25 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.
  • Page 85 Scientific 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 corresponding prompt message when the file is read successfully. To Delete File...

  • Page 86: To Set Utility Function

    Scientific 2.13 To Set Utility Function With the Utility function, you 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 2-45 and Figure 2-46.
  • Page 87 Scientific Utility Setup Interface (Page 2/2) Figure 2-46 Table 2-27 Menu Explanations of Utility (Page2/2) 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.

  • Page 88: System Settings

    Scientific 2.13.1 System Settings Press Utility → System, to enter the following interface. Figure 2-47 System Setup Interface (Page 1/2) Table 2-28 Menu Explanations of System Setup (Page 1/2) Function Settings Explanation Menu Number Set the number format. format English Language Set the language.
  • Page 89 Scientific Figure 2-48 System Setup Interface (Page 2/2) Table 2-29 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...
  • Page 90 Scientific 1. Set the Number Format Press Utility → System → Number Format, to enter the following interface. Figure 2-49 Set the Number Format Table 2-30 Menu Explanations of Setting the Number Format Function Settings Explanation Menu Use dot to represent decimal point;...
  • Page 91 Scientific Last: includes all system parameters and states, except channel output state. Default: denotes the factory defaults except certain parameters (such as Language). 4. Set to Default Press Utility → System → Set To Default, to set the system to the default setting.
  • Page 92 Scientific 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”.
  • Page 93 Scientific Figure 2-52 System Information Interface 8. Updating Firmware The software of the generator can be updated directly via U-disk. This process takes about two minutes. Follow the steps below: 1. Insert U- disk with firmware update file to USB host interface on the front panel of the generator.
  • Page 94 Scientific Figure 2-53 Bandwidth Updating Interface Table 2-32 Menu Explanation of File Storage Function Settings Explanation Menu Cursor upward to select. Down Cursor downward to select. Select the current character from the virtual soft Select keyboard Delete Delete the current character of the license.

  • Page 95: Test/Cal

    Scientific 2.13.2 Test/Cal Choose Utility → Test/Cal, to enter the following interface. Figure 2-54 Test/Cal function Menu Table 2-33 Menu Explanations of Test/Cal Setting Function Settings Explain Menu SelfTest Perform a system self-test. TouchCal Do a touch screen calibration. Cancel Return to the Utility menu.
  • Page 96 Scientific Figure 2-55 Self Test Interface Table 2-34 Menu Explanations of Self Test Function Settings 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.
  • Page 97 Scientific Figure 2-56 Screen Test Interface 2. Key Test Select KeyTest to enter the keyboard test interface, the on-screen lathy rectangle shapes represent the front panel keys. The round between two arrows represents the knob. Test all keys and knob and you should also verify that all the backlight keys illuminate correctly.
  • Page 98 Scientific 3. LED Test Select LEDTest to enter the LED test interface, the on-screen lathy rectangle shapes represent the front panel keys. The prompt message ‘Please press ‘7’ Key to continue, press ‘8’ Key to exit.’ is displayed. You could press the ‘7’...
  • Page 99 Scientific Touch Adjust Use the function regularly to calibrate the touch screen, which makes it more accurate when the finger or touch pen touches the screen and avoids any misoperation. Press Utility → Test/Cal → TouchCal, to enter the following interface.

  • Page 100: Frequency Counter

    Scientific 2.13.3 Frequency Counter SMG2000 provides a frequency counter which could measure frequency from 100mHz to 200MHz. In addition, the dual channels can still output normally when the counter is enabled. Press Utility → Counter, to enter the following interface.
  • Page 101 Scientific Figure 2-63 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.
  • Page 102 Scientific level. The default is 0V and the available range is from -3V to 1.5V. 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.

  • Page 103: Output

    Scientific 2.13.4 Output Press Utility → Output to enter the following interface. Figure 2-64 Output Setup Interface To Set the Output Load For the [CH1] and [CH2] connector on the front panel, the generator has built- in 50 serial impendence. If the actual load does not match the set one, the displayed voltage will not equal the real voltage.
  • Page 104 Scientific To Set the Output Polarity Press Utility → Output Setup → Polarity to set the output signal as normal or inverted. Waveforms inversion is relative to the offset voltage, as shown in the following figure. Note: The Sync signal related to the waveform is not inverted when the waveform is inverted.

  • Page 105: Copy/Coupling

    Scientific 2.13.5 CH Copy/Coupling Channel Copy SMG2000 supports states and waveform copy function between its two channels, namely copies all parameters and states (including the channel output state) and arbitrary waveform data of one channel to the other one. Press Utility → CH Copy Coupling → Channel Copy, to enter the following interface.
  • Page 106 Scientific Channel Coupling SMG2000 supports frequency, amplitude and phase coupling. Users can set the frequency deviation/ratio, amplitude deviation/ratio or phase deviation /ratio of the two channels. When coupling is enabled, CH1 and CH2 are as reference as each other. When the frequency, amplitude or phase of one...
  • Page 107 Scientific Amplitude Coupling 1. To Enable Amplitude Coupling Function Press AmplCoup to turn amplitude coupling “On” or “Off”. The default is “Off”. 2. To Select Amplitude Coupling Mode Press AmplMode to choose “Deviation” or “Ratio”, and then use the numeric keyboard or knob and arrow keys to input the desired value.
  • Page 108 Scientific Channel Track When the track function is enabled, if the parameters or states of CH1 are changed, the corresponding parameters or states of CH2 will be adjusted to the same values or states automatically. At this point, the dual channels can output the same signal.

  • Page 109: Remote Interface

    Scientific 2.13.6 Remote Interface SMG2000 can be controlled remotely via USB, LAN and GPIB (option) interfaces. Users can set the corresponding interface according to their needs. Press Utility → Page 1/2 → Interface to open the following menu. You can set LAN parameters or GPIB address.
  • Page 110 Scientific 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. Remote Control via USB SMG2000 can communicate with PC through USBTMC protocol. You are suggested to do as the following steps.
  • Page 111 Scientific 2. Install the driver of GPIB card. Please install the driver of the GPIB card which has been connected to your PC correctly. 3. Set the GPIB address Choose Utility → Page 1/2 → Interface → GPIB to enter the following interface.
  • Page 112 Scientific 2. Configure network parameters. Choose Utility → Page 1/2 → Interface → LAN State to turn on LAN. Then choose LAN Setup to enter the following interface. Figure 2-70 LAN Settings Interface 1) To Set IP Address The format of IP address is nnn.nnn.nnn.nnn. The first nnn ranges from 1 to 223 and the others range from 0 to 255.
  • Page 113 Scientific 3) To Set Gateway The format of gateway is nnn.nnn.nnn.nnn and each nnn ranges from 0 to 255. You are recommended to acquire an available gateway from your network administrator. Press Gateway and use the arrow keys and numeric keyboard or knob to enter your desired gateway.

  • Page 114: Sync Output

    Scientific 2.13.7 Sync Output The generator provides Sync output through the [Aux In/Out] connector at 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 115 Scientific 2) When the frequency of the waveform is greater than 1MHz, there is no sync signal output. 3) Noise and DC: there is no sync signal output. Modulated Waveform 1) When internal modulation is selected, the sync signal is a Pulse with 500ns pulse width.

  • Page 116: Clock Source

    Scientific 2.13.8 Clock Source SMG2000 provides an internal 10MHz clock source. It also can accept external clock source form the [10 MHz In/Out] connector at the rear panel. It can also output clock source from the [10 MHz In/Out] connector for other devices.

  • Page 117: To Use The Built-In Help System

    Scientific 2.13.9 To Use the Built-in Help System SMG2000 provides a powerful built-in help system, by which users can view the help information at any time when operating the instrument. Press Utility → Page 1/2 → Help to enter the following interface.

  • Page 118: Overvoltage Protection

    Scientific 2.13.10 Overvoltage Protection Choose Utility → Page 1/2 → OverVoltage Protection to turn on or off the function, as shown in the following figure. Figure 2-73 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 119: Examples

    Scientific 3 Examples To help the user master how to use SMG2000 more efficiently, we provide some examples in detail. All the examples below use the default setting of the instrument except especial explanations. This chapter includes the following topics:...

  • Page 120: Example 1: Generate A Sine Waveform

    Scientific 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 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 121: Example 2: Generate A Square Waveform

    Scientific Example 2: Generate a Square Waveform Generate a square waveform with 5kHz frequency, 2Vpp amplitude, 0Vdc offset and 30% duty cycle. Steps: Set the frequency. 1. Press Waveforms → Square → Frequency/Period and choose Frequency which will display in blue color.

  • Page 122: Example 3: Generate A Ramp Waveform

    Scientific 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.
  • Page 123 Scientific 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 User manual SMG2000 123/150...

  • Page 124: Example 4: Generate A Pulse Waveform

    Scientific Example 4: Generate a Pulse Waveform Generate a pulse waveform with 5kHz frequency, 5V high level, -1V low level, 40µs pulse width and 20ns delay. Steps: Set the Frequency. 1. Press Waveforms → Pulse → Frequency/Period and choose Frequency, which will display in blue color.
  • Page 125 Scientific When the frequency, high level, low level, pulse width and delay are set, the waveform generated is shown in Figure 3-4. Figure 3-4 Generate a Pulse Waveform User manual SMG2000 125/150...

  • Page 126: Example 5: Generate A Noise

    Scientific Example 5: Generate a Noise Generate a 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 127: Example 6: Generate A Dc Waveform

    Scientific Example 6: Generate a DC Waveform Generate a DC waveform with 3Vdc offset, Steps: Choose the DC waveform. 1. Press Waveforms →Page 1/2→ DC, to choose the DC waveform. Set the Offset. 1. Press Offset and choose Offset which will display in blue color.

  • Page 128: Example 7: Generate A Linear Sweep Waveform

    Scientific Example Generate Linear Sweep Waveform Generate a sine sweep waveform whose frequency starts from 100Hz to 10kHz. Use internal trigger mode, linear sweep, and the sweep time is 2s. Steps: Set the sweep function. Press Waveforms and choose the sine waveform as the sweep function.
  • Page 129 Scientific 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 User manual SMG2000 129/150...

  • Page 130: Example 8: Generate A Burst Waveform

    Scientific 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. Press Waveforms, and choose the sine waveform as the burst function.
  • Page 131 Scientific Set the burst cycle. Press Cycle, Input ‘5’ from the keyboard and choose the unit ‘Cycle’ to set the burst cycle to 5. Set the delay. Press Page 1/2 to choose Delay, and input ‘ 1 00’ from the keyboard and choose the unit ‘µs’...

  • Page 132: Example 9: Generate An Am Modulation Waveform

    Scientific 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.
  • Page 133 Scientific Figure 3-9 Generate an AM Modulation Waveform User manual SMG2000 133/150...

  • Page 134: Example 10: Generate A Fm Modulation Waveform

    Scientific 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.
  • Page 135 Scientific Figure 3-10 Generate a FM Modulation Waveform User manual SMG2000 135/150...

  • Page 136: Example 11: Generate A Pm Modulation Waveform

    Scientific 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.
  • Page 137 Scientific Figure 3-11 Generate a PM Modulation Waveform User manual SMG2000 137/150...

  • Page 138: Example 12: Generate A Fsk Modulation Waveform

    Scientific 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.
  • Page 139 Scientific Figure 3-12 Generate a FSK Modulation Waveform User manual SMG2000 139/150...

  • Page 140: Example 13: Generate An Ask Modulation Waveform

    Scientific 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 141 Scientific Figure 3-13. Figure 3-13 Generate an ASK Modulation Waveform User manual SMG2000 141/150...

  • Page 142: Example 14: Generate An Psk Modulation Waveform

    Scientific 3.14 Example 14: Generate an 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 143 Scientific Figure 3-14 Generate a PSK Modulation Waveform User manual SMG2000 143/150...

  • Page 144: Example 15: Generate A Pwm Modulation Waveform

    Scientific 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 145 Scientific Figure 3-15 Generate a PWM Modulation Waveform User manual SMG2000 145/150...

  • Page 146: Example 16: Generate A Dsb-Am Modulation Waveform

    Scientific 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.
  • Page 147 Scientific Figure 3-16 Generate a DSB-AM Modulation Waveform User manual SMG2000 147/150...

  • Page 148: Troubleshooting

    Scientific 4 Troubleshooting Routine Maintenance and Cleaning Do not store or leave the instrument where the touch screen will be exposed to direct sunlight for a long time. To avoid damage to the instrument, do not expose them to spray, liquid, or solvent.

  • Page 149: Troubleshooting

    Scientific Troubleshooting 1. After the generator is powered on, if the screen remains dark, please do as the following steps: (1) Check the power cable‘s connection. (2) Ensure the power switch is turned on. (3) After the inspections above, restart the generator.

  • Page 150: Service And Support

    Scientific 5 Service and Support No user serviceable parts are inside the instrument, should it become necessary to send back the instrument to factory for service, please observe the following procedure. 1. Before dispatching the instrument please write to us giving full details of the fault noticed, model number and serial number.

This manual is also suitable for:

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