Title :
Design of typical waveform generator based on DDS/SOPC
Author_Institution :
Sch. of Electron. Eng., Jiujiang Univ., Jiujiang, China
Abstract :
A waveform generator was designed based on DDS (Direct digital frequency synthesis) and SOPC (System on a Programmable Chip). DDS technology is used to generate sine wave, square wave, triangular wave, amplitude modulation wave and other signals. Using VHDL and C programming, the DDS module and Nios II soft-core processor are integrated into the FPGA chip to enhance the expansibility. This design is verified by synthesis and simulation through Quartus II. Experiments show that output frequency range is 0 ~ 25.88 MHz, the voltage is 0 ~ 3.64 V, and the resolution reaches 0.5 Hz when the waveform has no significant distortion.
Keywords :
amplitude modulation; direct digital synthesis; field programmable gate arrays; hardware description languages; microprocessor chips; system-on-chip; waveform generators; C programming; DDS module; DDS-SOPC; FPGA chip; Nios II soft-core processor; Quartus II; VHDL; amplitude modulation wave; direct digital frequency synthesis; frequency 0 MHz to 25.88 MHz; sine wave generation; square wave generation; system on a programmable chip; triangular wave generation; voltage 0 V to 3.64 V; waveform generator; Field programmable gate arrays; Frequency conversion; Frequency synthesizers; Read only memory; Signal generators; Software; System analysis and design; DDS; FPGA; SOPC; waveform generator;
Conference_Titel :
Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on
Conference_Location :
Shengyang
Print_ISBN :
978-1-4799-2564-3
DOI :
10.1109/MEC.2013.6885143
