Design of Dual High Precision Power Signal Generator Based on AD9854

Abstract:

To obtain the dual high-precision numerical control signal source, and could be accurately adjusted the dual signals frequency and phase and increase the output signal power, the paper presented a method based on direct digital synthesis technology and parallel push-pull output, designed and implemented the dual channel high-precision and high power signal generator. MSP430 controlled AD9854 registers to realize frequency and phase modulation, after low-pass filter to adjust the square wave duty cycle by the DAC7612, amplitude was integrated optimization adjustment by AD9854 AD603 and power amplifier. Consideration the anti-jamming measures, the system is stable and reliable, and can output high-precision and high power sine and square wave in the 5-150kHz frequency band, signal frequency, phase, amplitude and duty cycle can numerical control. In addition, it has sweep output mode.

• Periodical: Applied Mechanics and Materials (Volumes 568-570)
• Pages: 344-348
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.568-570.344
• Online since: June 2014
• Authors: Ru Sen Fan*, Yong Wang, Jun Jie Yang, Zhi Wang
• Keywords: AD9854, High Precision, Power Signal Generator

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