摘要
提出了一种提高数字信号处理器芯片TMS320LF2407数据采集精度的电路设计方法.该方法将模拟信号通过外接12位模数转换器AD7858,AD7858对数据进行数模转换后,将转换结果通过串行外设接口(SPI)传递给TMS320LF2407,从而达到实现提高DSP的采样精度.分析证明,该方法具有较好的精度,且硬件实现简单.
The paper introduced a new method to improve DSP sampling precision. The method is that the anolog signal is connected with 12 bit AD converter AD7858 that deals with the data, then transmits the data to TMS320LF2407 by SPI . The conclusion improves the way has better precision, and is easy to attain.
出处
《南昌大学学报（工科版）》
CAS
2007年第2期194-196,共3页
Journal of Nanchang University(Engineering & Technology)
