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对于实际的DSP(数字信号处理器)、MCU(单片机)信号处理和控制系统,逻辑电源电压的实时监视和系统复位控制是一个非常关键的问题。能否及时监视CPU电压的波动情况,并且根据对电压精度的判断实时启动系统的复位信号,避免整个系统在欠压或过压时发生误动作,对确保整个系统的安全性、可靠性、稳定性来说是至关重要的。因此,我们选择合理的IC构成监控/复位电路。
For the actual DSP (digital signal processor), MCU (microcontroller) signal processing and control system, real-time monitoring of logic supply voltage and system reset control is a key issue. Can timely monitor the CPU voltage fluctuations, and according to the judge of voltage accuracy real-time start system reset signal, to avoid the entire system undervoltage or overvoltage occurs when the malfunction, to ensure that the entire system security, reliability, stability Sex is crucial. Therefore, we choose a reasonable IC to form the monitor / reset circuit.