Digital Waveform Generator Basedon FPGA

Shou-Cheng Ding ； Aimin An ； Xinke Gou

《Research Journal of Applied Sciences, Engineering and Technology》 4卷14期 (2012/07) Pp. 2160-2166

並列摘要

Field Programmable Gate Array (FPGA) of the Cyclone Ⅱ series was as the core processor of frequency meter and the Quartus Ⅱ was as the development plat form. This article had designed the fully digital signal generator. It use dall-digital frequency synthesizer technology and FPGA programming implemented the three waveforms: sin wave and square wave and triangle wave. The frequency was adjustable through10-bit phase accumulator and the analog multiplier achieved amplitude modulation. Using 51soft nuclear FPGA wrote a C program and realized the in put control word. The 4 × 4 matrix keyboard inputted frequency or amplitude value and the LCD1602displayedthem. The test results show that the system has high precision, distortion and low.

並列關鍵字

51 soft nuclear ； digital frequency synthesis ； field programmable gates away ； waveform generator