FAQ
各位好:
我使用 ESP32 以 SPI 連線方式 連接至AD7606-4 進行數據擷取
連接腳位如下:
程式啟動後 RST 觸發約 1sec ,那時BUSY電平還為低電平的狀態
一旦 CVA/B 觸發後 BUSY 則一直為 高電平沒下降過。
類比輸入的部分使用 470pF 的電容跨接到 VGND
VREF 使用 ADR421ARZ 提供的 2.5V
AVcc 為 5V ,Vdrive 為 3.3V
感謝各位回答
Thanks Lluis!
We have selected AD7606 for this design.We will consider AD7606C-16 next time.
工程师您好!
目前项目需要将4个AD7606通过并口,并联到FPGA,请问有相关的硬件设计参考吗?
关键问题如下:
1.4个AD7606如何布局合适?
2.需要多个个参考电源ADR421,应该放置在哪?
3.4个AD7606的并行总线需要菊花链走线还是星型走线合适?是否串联匹配电阻?
盼复,感谢!
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