Function Signal Generator Design
Abstract: This article is based on AT89C51 microcontroller function signal generator. Control using AT89C51 microcontroller as the core, the external use of digital/analog conversion circuit DAC0832, op amp circuit LM358, buttons and 8-bit digital tube, etc. Through the C language for microcontroller programmed to generate the corresponding waveform signal, and various functions via the keyboard conversion and signal frequency control. So that it can generate a square wave, triangle wave, sine wave, sawtooth. Simultaneously with digital indication of their corresponding frequency, signal amplitude can request control. The signal source is characterized by small size, low price, stable performance, easy to achieve and fully functional.
Key Words: MCU; Signal Generator; D/A Conversion; Op Amp Circuit
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