User's Guide

User’s Guide DDS-3X25 USB ARBITRARY FUNCTION GENERATOR

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DDS-3X25 USB Content General Safety Summary......................................................................................1 Introduction ...........................................................................................................2 Chapter 1 Getting Started....................................................................................3 System Requirements ............................................................................4 Installing Hardware.................................................................................5 Installing Software ..................................................................................8 Chapter 2 Operating Basics...............................................................................12 The User’s Interface .............................................................................13 The Instrument’s Interface....................................................................14 The Menu System ................................................................................15 The Waveform Control System.............................................................18 Chapter 3 Understanding Functions ..................................................................19 Waveform parameter............................................................................20 Waveform Output Control.....................................................................21 Edition of Arbitrary Waveform...............................................................22 Waveform Data Files ............................................................................23 Frequency/Counter Measurement........................................................24 Digital Input/Output...............................................................................25 Output without PC ................................................................................28 Multiprocessor Link...............................................................................30 Synchronized output.............................................................................34 External Trigger Input ...........................................................................35 Chapter 4 Application Examples........................................................................37 Generate Simple Waveform .................................................................38 Generate Arbitrary Waveform...............................................................39 Combine Devices .................................................................................40 Appendix.............................................................................................................42 Hardware Specification.........................................................................43 Cleaning and maintenance...................................................................44

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DDS-3X25 USB General Safety Summary Please understand the following safety precautions to avoid injuries and damages to the product or any equipment connected. To be away from possible dangers, please be sure to follow the regulations.  Only qualified persons are allowed to do the maintenance .  Prevent from fire and any personal damage.  Use Proper Power Cord. Use the power cord authorized in your country only.  Correctly Plug in and Pull out. When the probes or the test leads are connecting to the voltage source, please do not plug in or pull out.  Ground the product. This product is grounded through the grounding conductor of the power cord.

To avoid electric shocks, the grounding conductors must be grounded properly before making connections to the input or output terminals of the instrument.  Correctly connect probe. The probes’ ground terminals are at the same voltage level of the product ground. Do not connect the ground terminals to a high voltage.  Check the ratings of all terminals. To avoid fire or shock hazard, check all ratings and marks on the product. Follow the user’s guide for detailed rating information before making connections to the product.  Do not operate the product when the case or panel is removed.  Avoid Circuit Exposure. Do not touch exposed connections and components when power is on.

 If you think the product is broken, do not operate. If you think that this product has something wrong, please let qualified service persons to check it.  Keep proper ventilation.  Do not operate in wet/damp environment.  Do not operate in flammable and explosive air.  Please keep the product surface clean and dry. DDS-3X25 USB User’s Guide 1

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DDS-3X25 USB Introduction DDS-3X25 Arbitrary Waveform Generator has one channel of arbitrary waveform output, 12 Bits outputs, synchronized signal output, 1 channel of Counter/Frequency Measurement input, 6 Bits inputs and external trigger input. User can edit the waveform arbitrarily by the mouse or choose the regular waveforms such as Sine, Square, Tri-angle, Saw-tooth, TTL, White Noise, Gauss Noise, Trapezia, Exponent, AM and FM. The parameters, such as amplitude, frequency and offset, are also settable.

The data format of DDS-3X25 is completely compatible with that of Tektronix; it can directly read the waveform data files produced by the Tektronix oscilloscope or Tektronix waveform editor software and redisplay the waveform. DDS-3X25 adopts the DDS technology so that it has the advantages of high frequency accuracy, high waveform resolution, high reliability, and wide software support. It can be widely used in various kinds of electronics labs and it offers complete interface for second time development to be pointlessly inserted into other auto-measuring systems. DDS-3X25 USB User’s Guide 2

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