該設(shè)計(jì)通過(guò)采用MC Atmega32、編碼器、4 x4鍵盤(pán)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:
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