摘要
音频信号控制集成电路LM1036N是专用于音频电路中对音量、音调(高/低音)、左右声道平衡调节控制的器件。文中介绍通过单片机AT89C2051和D/A转换器DAC0832组合的电路取代调节控制电位器,实现数控功能,达到以±0.1 V的步进精确控制,并用两只数码管同步地显示控制电压的数值。给出了较详细的设计过程、电路和程序结构。
LM1036N is a kind of IC to control volume, tone（ high/bass）, balance of the left and right track in the audio device. Through the circuit assembled by single chip computer AT89C2051 and D/A convertor DAC0832 replacing adjustment control device, this article introduces the function of numerical control and step control with ± 0.1V accuracy, synchronous display control voltage by two LED. The article also introduces design process, circuit and program structure.
出处
《电子工程师》
2006年第3期31-34,共4页
Electronic Engineer
