苏州市职业大学学报
囌州市職業大學學報
소주시직업대학학보
JOURNAL OF SUZHOU VOCATIONAL UNIVERSITY
2012年
3期
5-8,41
,共5页
AD9833%DDS%波形发生器%MSP430单片机
AD9833%DDS%波形髮生器%MSP430單片機
AD9833%DDS%파형발생기%MSP430단편궤
AD9833%DDS%waveform simulator%MSP430 microcontrollers
基于MSP430单片机,采用直接数字合成DDS芯片AD9833设计一个多种波形信号发生器,可产生正弦波、三角波、脉冲波,输出波形频率为1 Hz～1 MHz.设计主要包括电源电路、控制电路、波形发生电路、滤波电路和放大电路.根据DDS芯片的特点给出程序的设计方案,包括AD9833的初始化、写控制字、合成频率等.实验测试结果证明该设计方法的正确性及可靠性.
基于MSP430單片機,採用直接數字閤成DDS芯片AD9833設計一箇多種波形信號髮生器,可產生正絃波、三角波、脈遲波,輸齣波形頻率為1 Hz～1 MHz.設計主要包括電源電路、控製電路、波形髮生電路、濾波電路和放大電路.根據DDS芯片的特點給齣程序的設計方案,包括AD9833的初始化、寫控製字、閤成頻率等.實驗測試結果證明該設計方法的正確性及可靠性.
기우MSP430단편궤,채용직접수자합성DDS심편AD9833설계일개다충파형신호발생기,가산생정현파、삼각파、맥충파,수출파형빈솔위1 Hz～1 MHz.설계주요포괄전원전로、공제전로、파형발생전로、려파전로화방대전로.근거DDS심편적특점급출정서적설계방안,포괄AD9833적초시화、사공제자、합성빈솔등.실험측시결과증명해설계방법적정학성급가고성.
Based on MSP430F169 MCU and AD9833 chip,a high accuracy programmable ultrasonic wave signal simulator using DDS(direct digital frequency synthesis) technique is designed.It can produce sine wave,tri-angular wave and pulse,which has 1 Hz-1 MHz frequency range of output waveform.Some modules are designed for the generator,such as power supply circuit,control circuit,waveform simulator circuit,wave filter circuit,amplify circuit and so on.The characteristics of the AD9833 chip is given,the software design methodology is provided including initiative,write control word,synthesis frequency and etc.Finally,the simulation results show the correctness and the affectivity of the proposed method.
