MWG05直接数字合成 (DDS)
Contents
1. 000Hz Square wave Triangular wave When need to change the frequency or duty circle press button or button to add or deduct the current digit value The frequency range is 0 20 000 000Hz the minimum step is 1Hz When waveform Sine wave the duty circle is set to 0 and can not be modified When waveform Square wave the duty circle can be modified between 1 to 99 When waveform triangular wave and ditv circle 50 the output is standard triangular wave while duty circle gt 50 or lt 50 the ouput is forward sawtooth or backward sawtooth wave SQR DUTY 50 F 1 000 000Hz SQR DUTY 80 F 1 000 000Hz 0 F 1 000 000Hz Sweep button Press to come into sweep frequency function see more in next chapter Set button Press to disable the cursor OFFSET Potentiometer turn to modify the offset vaule of the wave AMPL Potentiometer turn to modify the amplitude vaule of the wave TTL Switch switch to TTL output 4 Power_Selet Switch switch power supply USB power and external power supply 2 2 SWEEP FREQUENCY Follow the next three steps to set sweep function SIN Time Ols Fs 0 000 001HZ gt Step 1 Fe 5 000 000HZ lt Fa 000 001HZ gt Step 2 Fc 0 000 000HZ lt OUT OFF Step 3 Fs start frequency Fe end frequency Time sweep time step Fa sweep frequency step 0 999999Hz Fc the current output frequency varying during the process O2. MWG20 MULTI WAVE GENERATOR USER MANUAL VES VODVO RS AE E BB DI Da DID DS DS 07 E INDEX 1 OVERVIEW 1 1 PC SVSTEM REQUIREMENTS 1 2 PACKAGE LIST 1 3 SOFTWARE INSTALLATION 2 USING MWG20 2 1 GENERATION CONTROL 2 2 SWEEP FREQUENCV 2 3 PC SOFTWARE CONTROL 1 OVERVIEW MWG20 Is based on direct digital synthesis DDS signal generator using the CPLD design easv to use high signal stability At the same time with TTL signal output the output signal to adjust the amplitude andDC offset and the instrument has a sweep function were able to set the scanfrequency range and scan time Suitable Laboratory technicians and electronics enthusiasts to use FEATURES e OUTPUT Waveform Sawtooth Amplitude Impedance Offset Display Frequency range Frequency resolution Frequency steadiness Frequency precision Sine wave distortion Triangular wave linearity Sine Square Duty circle variable 29 p p no load 500 10 2 5V LCD1602 1Hz 20MHz Sine 1Hz 2MHz Others 1Hz 1x10 5x10 lt 0 8 1kHz 298 1Hz 10kHz Square wave rising falling time lt 100ns Square wave duty circle e TTLOUTPUT Frequency range Amplitude Fan out coefficient e SWEEP FREQUENCY Sweep range Sweep time range Amplitude 1 99 1Hz 20MHz gt 3Vp p gt 20 TTL load Fs Fe 1 99 second 0 5Vp p 20Vp p 1 1 PC SVSTEM REQUIREMENTS Windows XP Windows 7 Pentium or higer processor e e e USB2 0 High
3. UT set ON to enable the output OFF to disable the output Select button Press to enable and move the cursor on the LCD display while the LCD indicates which item is being displayed and set Wave button Press to change waveform SIN or SQR SIN Time 01s SQR Time 01s Fs 0 000 001HZ gt Fs 0 000 001HZ gt waveform SIN waveform SQR Set button Press to disable the cursor When the cursor is on p press to reture to the previous step while the cursor is on gt r press to go to the next step Sweep button Press to swith functions between normal output and sweep 2 3 PC SOFTWARE CONTROL Nulti waveform Generator Connected Wave Wave Duty io FregtHz 1 000 000 Sweep Wave FreqtHz U Start FreqiHz athe Stop FregfHz 1 000 Start Swee Time Increis 1 Connect MWG20 to your PC and run the software In the Waveform control you can select the waveform set the duty circle only available for triangluar and square wave and set the working frequency And press the Set button to generate the output Be aware that both the OFFSET and amplitude can not be set by this software When you change the settings by buttons on the board they will be displayed accordingly by the software In the Sweep control you can select the waveform and set start frequency end frequency frequency step and time step Press the Start button to generate the output and the working frequency will
4. be displayed sychronously Press the Stop button to end the sweep and modify all the settgings
5. speed or Full speed port e 32MB RAM e 125MB hard disk space 1 2 PACKAGE LIST MWG20 Signal cable USB cable A to B DC Power adapter 1 3 SOFTWARE INSTALLATION Run Multi Waveform Generator exe to install software on your hard disk This may take several minutes Connect the DC Power adapter to MWG20 e Plug a USB A to B cable in MWG20 and the other end into a free USB port on your computer You will see a dialog box indicating that it found new hardware and let it installing the software automatically lf failed let Windows go to the folder to find the driver ere Fe ee ea ee DS BUSCHPFR Jeg EHA TF PUBS SS Serer REINER 2 MSH A MERE MEH Gaming Zone BES sep PRT IS MSN Messen ger C alterati1 DY O Multi Waveform Generat Cy Mil ti aveform Generat OTERA REECE o Oliver Er EEE G Nero x Aerzte z See tite BH CTI AE U 2 1 GENERATION CONTROL LCD Power Power Selet terface Interface USB P rd Interface OFFSET LCD Interface SIN DUTY 00 F 1 000 000Hz LCD shows the waveform duty circle and frequency SIN indicates waveform including SIN TRI SQR DUTY is duty circle F is frequency number Select button Press to enable and move the cursor on the LCD display while the LCD indicates which item is being displayed and set Wave button Press to change waveform SIN SQR or TRI SQR DUTY 50 TRI DUTY 50 F 1 000 000Hz F 1 000
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