摘要
本系统由单片机控制模块、键盘、LCD数码显示屏、DAC输出电路、MAX038和末级放大电路构成。用单片机和MAX038产生频率可调电压可调、稳幅正弦波、方波、三角波。整个系统结构紧凑,电路简单,功能较大,可扩展性强。
This system is made of SCM(singlechip control module),keyboard,LCD display,DAC output,MAX038 chip and aftermost amplifier.DDS(directly digital synthesize frequency) is implemented by SCM and MAX038 chip.It is used to generate three waves--sine wave,square wave and triangle wave.The frame of whole system is compact,with simple circuit,powerful function and good expansibility.
出处
《井冈山大学学报(自然科学版)》
2009年第1期12-15,共4页
Journal of Jinggangshan University (Natural Science)