该设计通过采用MC Atmega32、编码器、4 x4键盘按键以及手机上的彩色液晶数实现正弦波的显示。输出的正弦波的峰峰值为0-5V。
电路涉及到的重要芯片包括:ATMEGA32-16AI、AD9859YSV、BU2090F、AD8045A等。
该DDS信号发生器电路参数:
- 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信号发生器电路截图:
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