Abstract:

The system completes the arbitrary waveform generator by Direct Digital Synthesis with FPGA as the core control device and FLASH and RAM as the data storage module.Under the control of host computer software,the system uses the high precision D/A converter to achieve the output of arbitrary waveforms,such as sine wave,square wave,triangular wave,sawtooth wave,white Gaussian noise.The system can be widely used in such field as telecommunications,remote telemetry,and instrumentation.

Key words: DDS;FPGA;Flash;RAM;host computer;D/A converter