ADS1274的CLK为有源晶振输出,SCLK为MCU(FPGA)输出,都是25MHZ的。现在MODE设置为High Resolution,FORMAT设置为SPI的TDM fixed或者SPIdiscrete的,PWDN4为高电平,PWDN1~3都为低电平,实际上就让第四路工作,DRDY的波形图如下,输入经过差分器件OPA1632,当输入为直流信号时,DOUT1~4都为低电平,好奇怪,DRDY信号输出波形显示挺正常的呀,请问这是什么情况?
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.