摘要
在使用TMS320LF2407A DSP内部ADC模块进行采样电路设计时,输入阻抗是采样电路极为重要的参数。如果外部输入阻抗取值不当,则会影响采样结果的准确性,进而会影响后面的数字信号处理。文章对采样电路输入阻抗问题进行了深入分析和研究,同时总结了ADC模块应用中应该注意的一些重要问题。
In using the ADC module in TMS320LF2407A for sampling-circuit,the external impedance is of vital importance.If the external impedance is not properly selected,the sampling-results will be inaccurate,and will also affect the digital signal processing.The problems of the external impedance matching in sampling-circuit are analyzed in the paper.Meanwhile some issues that are important in the application of the ADC module are summarized.
出处
《仪表技术》
2009年第9期34-35,38,共3页
Instrumentation Technology
