該設(shè)計(jì)通過采用MC Atmega32、編碼器、4 x4鍵盤按鍵以及手機(jī)上的彩色液晶數(shù)實(shí)現(xiàn)正弦波的顯示。輸出的正弦波的峰峰值為0-5V。

電路涉及到的重要芯片包括：ATMEGA32-16AI、AD9859YSV、BU2090F、AD8045A等。

該DDS信號(hào)發(fā)生器電路參數(shù)：

• Voltage 9-15 volts.
• Supply current 200 mA.
• Output frequency at the output of the synthesizer from 20 kHz to 150 MHz.
• Output impedance 50 ohms.
• The form of output signal - sinusoidal.Swing output voltage adjustable from 0 to 4 volts pp
• Managing as a synthesizer of the program with PC via USB, or independently.

DDS信號(hào)發(fā)生器電路截圖：